**Status.** First-pass design-only inventory for exactly **10 encounter placements, including two major setpieces**, and **13 major placed mechanisms** in the accepted 24-module/40-room proposal. It is not an owner-selected scope, balance specification, executable layout, spawn system, tuning pass or evidence of fun, clarity, performance or duration. Exact populations below are starting hypotheses. The six ordinary roles, three special roles, five reusable trap families, equipment behavior, current room identities and all owner choices remain owned by their linked articles.

| Current owner used | SHA-256 read for this pass |

|---|---|

| [Owner Brief](/Hold%20The%20Flood/Brief) | `4b0a3bcbc339029c682b287c1ea25ee2f721066f68d8b27774874e8cd15808e4` |

| [Station Room And Module Inventory](/Hold%20The%20Flood/Station%20Room%20And%20Module%20Inventory) | `d4ef2497568d6d7924f929ad0abb96cffb41f4df61357f59cf2722b757580b99` |

| [Combat And Enemy Roster](/Hold%20The%20Flood/Combat%20And%20Enemy%20Roster) | `f1fe0d9a71e344a78d219333bc6b00e8af89a26758769c218743f1ca3a62fbdc` |

| [Traps And Encounter Progression](/Hold%20The%20Flood/Traps%20And%20Encounter%20Progression) | `a280131b20e43c453f865d03f610103221fc08ee4fd61973451a139390ba33ae` |

| [Equipment Catalogue](/Hold%20The%20Flood/Equipment%20Catalogue) / [Acquisition](/Hold%20The%20Flood/Equipment%20Acquisition%20And%20Rig%20Growth) | `737b3cfdaca7a1032597648b68ed94a9a9c1c3a3b5c7cfa9e6f91639f7073f99` / `f5f6d7681325bc5e52d1a7503133a15d8e4293f55df3961fe6f7210b9503db6e` |

| [Regional Discovery Map](/Hold%20The%20Flood/Regional%20Discovery%20Map) / [Two Language Discovery Map](/Hold%20The%20Flood/Two%20Language%20Discovery%20Map) | `3acda0183b13d531e5e93cfd7ef41909c33b19d970bdb4b0b3c01f4360427247` / `df0f48f5bd39659105ca5e3b31e7341e4d0a8b36618a7eaed8f60d7120038a0a` |

| [Story And Ending Map](/Hold%20The%20Flood/Story%20And%20Ending%20Map) / [Cast And Short Rescue Map](/Hold%20The%20Flood/Cast%20And%20Short%20Rescue%20Map) | `03c9cb8ee95564f08cf59b065f97c0a008981a489f8a8b223df0048d4cfb6de9` / `6456406b101845e6c9a6563a69fc7f56c1dcc7bf8227445bf14a03fa072f5514` |

| [Survival And Loadout](/Hold%20The%20Flood/Survival%20And%20Loadout) / [Player Information](/Hold%20The%20Flood/Player%20Information) | `892afa4ab2aaf7da7ed90441d1d2622c794da4679ecc8117c03c9a22b0582769` / `34f8d4a0c198e1250e08f2e2dc5fd314a5084b36bb6677e2cc566e75117474fd` |

| [Save And Content State](/Hold%20The%20Flood/Save%20And%20Content%20State) / [Production Scope](/Hold%20The%20Flood/Production%20Scope) | `438cdf35f53bb537aed50bb8efab810866b289d6cf401b949d95bc7e27e8938c` / `c1a60388489fbbd0363a75e19d2e3b32b5543d00ee0b240911754fbe3087bf1d` |

Encounter IDs **E01–E10** are the ten accepted placements; E08 and E10 are the two setpieces inside that ten. Mechanism IDs **P01–P13** are major placed instances. P01/P03 are Triage Relays, P02/P04 Sterilization Carousels, P05/P07 Breath Banks, P08 Phase-Balance, and P06/P09 Resuscitation Grids: **five reusable families, nine placements**. P10 iris/two-clamp assembly, P11 clinical profile comparator, P12 Synchronization converter/roster and P13 core isolation are four unique objective mechanisms. Thirteen is the former SMALL 12-slot sample plus the accepted explicit isolation increment.

The number 13 is not “all interactive objects.” R02/R03's selected-opening board/rack conduit, R26's reversible A↔B Decontamination circuit, R33's fixed A→R exchanger, ordinary doors, evidence drawers and every room's join/release face remain real authored interfaces. They are cross-linked below but are not silently declared members of a reusable trap family or duplicated as P14+. A room, encounter, clue, rescue, part source and mechanism sharing one place retain separate identities but are counted once in their owning ledger.

Warnings remain visible independently when they overlap. A group can enter only through a shown current route after local perception, a named mechanism alarm or a completed Caller brace; it must already exist in the encounter's finite roster. A call never manufactures replacements. Defeating the listed population wins that expedition's local combat with no reactive elite or reduced reward. Later visits may have a different authored population, but cleared enemies do not stand back up during the same expedition.

An ordinary controller uses the current single-actuator rule: Threat Sensor offers one target-bearing trigger only when its one connected ordinary actuator is ready and a nearest visible valid hostile exists. Manual Trigger starts one manual wave after facing/target/material preview. Fork copies trigger/type/wave and conserves usable payload; fixed machinery supplies its own power. Stride triggers only from the astronaut's deliberate grounded traversal. No example assumes a second ordinary actuator, unseen target, universal Arc permission or stat tier.

World-time work shows its present stage and completed checkpoints. Explicit cancel, displacement beyond reach or a creature occupying the control loses the unfinished stage; damage alone does not. Journal pause freezes enemies, oxygen, warnings, projectiles, readiness, mechanisms and work and completes nothing. Living retreat is physical. On death, still-carried parts/loot/canisters return once; spent gas/material remains spent; installed, dropped or handed-over objects remain at their stable identities; completed work persists; one shift makes old routes historical.

**Host and warning.** R02 Cargo Turn and compact partner R03 Collar Control, objective 1; P01 Triage Relay and the selected-opening board/rack interface. From R01, the player sees two separated Pressers, the board's two output lamps, the shutter lane and rack through the fixed glazed throat. One Caller waits beside the matching alarm source beyond the shown patient-bay entrance. The final bridge fastener is labelled noisy; the Caller's throat shutters and P01's destination preview identify the answering lane before either commits.

**Population and space.** Starting hypothesis: two Pressers in separate visible lanes and one Caller with one finite adjacent pair eligible to answer exactly one completed call. Those two are already represented by silhouettes/count lamps beyond the entrance; they are not spawned. R02's waist-high rack breaks one lane, the board occupies the exposed inside corner, R03's bridge work is visible across the fixed throat, and R01 is the retreat. R02/R03 never shift apart.

**Objective and commitment.** Remove staged fasteners and carry the isolation bridge home; killing is optional. Each fastener commits separately. The last committed fastener starts the loud hold and may let a braced Caller complete its one call. Fork installation/retrieval and bridge pickup are separate commits.

**Three approaches.** (1) Install Fork in the board: the board source sends compatible control triggers to rack hold and shutter hold while Fork is seated; Fork supplies no power. The closed lane reduces the finite pressure, but installation/retrieval costs exposed time and the part remains installed if death comes first. (2) Keep Fork carried: the selector powers the rack continuously, the shutter lane stays open, and the four-A opening Sensor→Projector plus Manual→Barrier rig manages the visible lanes. Carrying Fork competes with the bridge and canister. (3) Baseline physical path: use the selector, fixed rack cover, worn cutter and repeated retreats after committed fasteners; cut P01's alarm lead before the final stage if reachable. Refusing the final hold costs another trip, not progress.

**Persistence and return.** Fasteners, bridge location, cut alarm/dog checkpoint, board state and Fork location persist. Caller eligibility, P01 occupancy, shutter timing and population are current. A released bridge carried at death returns once; one still in the rack does not. The observed R-3 window clue in R01 remains a supported record, never a route.

**Host and warning.** R05 Pace Calibration Bay, objective 2, P02 single-detent Carousel; R06 is only a current approach/abort room and R07's coupler housing is optional current adjacency. One Boltspitter stands across the single pillar. Its sac fill/aim line and the Carousel's painted sweep/cool detent are visible before the astronaut enters the gait interval. A Presser waits beyond the far floor mark in sight, not behind a success trigger.

**Population, space and trigger.** Starting hypothesis: one Boltspitter plus one Presser, no Caller or reinforcement. The marked grounded interval and entire service belt—including return and stop—are inside R05. Starting either gait capture is the first work commitment; it makes standing still costly but creates no enemy. Hard cover sits off the measurement line, so the player must alternate observation, movement and work.

**Objective and approaches.** Perform the same-astronaut grounded crossing and feet-still carrier pass, then choose whether to remove Stride. If R07 is visibly adjacent, its separate coupler release may follow; otherwise the assembly waits. (1) Opening rig: Sensor→Projector handles the nearest visible target when ready; Manual→Barrier faces the locked bolt line while one capture stage completes. (2) Four-A movement rig on revisit: Stride→Projector plus Manual→Barrier. Only the astronaut's deliberate grounded pass can source the shot; belt motion, Ivo, shove and recoil cannot. (3) Baseline: bait line lock into the pillar, step through the cool detent, isolate the Presser with the cutter, and withdraw after either committed observation.

**Rescue/state work.** If Ivo is selected and R05/R06 form a personally walked current short route to the ship, R06 must be stocked and the combat made quiet before I1. Ivo signals readiness; the astronaut triggers installed Stride or Ivo uses the fixed manual cue, then he walks. Missing R06 adjacency waits—no belt ride becomes an escort. Test captures, Carousel clamp, Stride/coupler locations and survivor confirmation persist; current aim, detent and crowd do not.

**Host and warning.** R08 First Local Latch Hall with a currently adjacent R09 test face, objective 3 and P03 Triage Relay. One Clampcrawler is visible beside the centre inspection island. Its arched crouch and jaw-flash lock draw a fixed landing arc when the latch control activates. A single Presser is visible behind P03's cued entrance and can enter only if the relay alert or local sight gives it the current route.

**Population and geometry.** Starting hypothesis: one Clampcrawler and one conditional-but-pre-existing Presser. There is no hidden pool. Opposed service faces are readable from the island; the latch work position sits inside the Crawler's possible arc, while one side step and R09 retreat lie outside. P03's alarm lead is exposed before the control.

**Objective and approaches.** Commit a valid seam or record a safe refusal, walk through and operate the network-side release. (1) Bait the Crawler: start work, wait for jaw-flash lock, cancel, step out so it skids, then use the recovery to work; this needs no part. (2) Opening rig: Manual→Barrier intercepts a committed leap while Sensor→Projector fires only on a visible valid target. (3) Later Manual→Nozzle displaces the Crawler before lock or clears the work face; recoil clearance is shown at this instance. Cutting P03's alarm lead prevents the Presser route but does not dismiss it if already moving.

**Commit and persistence.** A refused signature consumes no cradle pulse and creates no join. Each completed latch dog and the final selected seam persist; an unfinished dog resets. Cut alarm persists; relay occupancy and undogged shutters rearm neutral on withdrawal/death. Releasing the seam is another completed hand-cycle and preserves other joins. No creature supplies charge and no successful latch reveals an unseen neighbour.

**Host and warning.** R11 R-3 Approach, with current route R01→R11→R12→R13 only in an eligible arrangement; objective 4. One Flanker is visible in R11's side leg, with chevron/outer-leg cue and central bollard. Two Pressers wait in sight beyond the contested leg. R13's quarantine Arc is an equipment-source fixture, not a numbered mechanism or rescue requirement.

**Population and commitment.** Starting hypothesis: one Flanker plus two Pressers, finite, no Caller. Their current paths, the R12 pressure gauge and R13 refuge door are visible before preparation commits. The first rescue commitment is stocking/confirming travel air after the astronaut has personally walked the exact route this life. Transfer cannot begin until the listed population is defeated, bypassed into a demonstrated quiet state or separated from the junction by a persistent local closure.

**Approaches and objective.** The objective beyond killing is one short cooperative crossing. (1) Opening rig: face Manual→Barrier across the Flanker chevron while Sensor→Projector selects the nearest visible hostile; move to change that candidate. (2) If Nozzle is already owned, Manual→Nozzle can spoil the locked Flanker lane or separate Pressers, but recoil cannot trigger Stride. (3) Baseline: lengthen the side route around the bollard, leave each locked arc, use hard cover/cutter and retreat to R01. The Arc grid may be observed, left or removed; no rescue state depends on it.

**Cast variants and state.** R13 holds Yeva-first or Aster-first, never both. The occupant operates the inner door and walks; either party can call ordinary abort to counted R12. Sent requires that same person aboard with ship airlock closed. Death during transfer records last confirmation and an unconfirmed outcome; it is not ordinary abort, delivery or loss. Quiet-window/population state is current; stocked checkpoints, wall capture, Arc location and confirmed survivor state follow their owners. If the route has two exposed junctions or no present abort refuge, the scene waits.

**Host and warning.** One connected placement across current R14 Pump Hall and R15 Cable Junction, objective 5, P04 Carousel. R14 first shows one Boltspitter, straight aim line and pillar. R15 shows a Veilbearer's folded membrane/anchor preview and one Presser behind a transparent service rail, plus Carousel arc/cool detents. All are visible before the player frames a record.

**Population and conditional movement.** Starting hypothesis: exactly one Boltspitter, one Veilbearer and one Presser. If the Boltspitter survives or was bypassed and the current R14→R15 approach remains open, it may walk along that already cued route behind a later veil. If defeated, nothing replaces it. The Presser can screen the first cast but cannot cross the rail until its existing gate state allows; the cast therefore teaches occlusion without an ambush.

**Objective and approaches.** Capture the two ordered runs, ending mains, A/B/address cases and open-crawl relation; Lens recovery is optional. (1) Opening rig: use the pillar to break Boltspitter sight, circle the finite veil edge so Sensor→Projector reacquires a valid nearest target, and spend Manual→Barrier only on the locked line. (2) Later Manual→Nozzle can displace Veilbearer before commitment or push an eligible shield panel into the Carousel arc; it does not blow away the anchored sheet after release. (3) Baseline: wait for veil decay and cool detent, use rail/pillar/cutter, commit one capture and physically withdraw. Taking an old crawl costs oxygen and may end blocked.

**Commit and persistence.** Each capture is atomic: interruption before completion yields none; after commit it persists with room/life provenance. Carousel clamp cuts/lock, moved wall panel and Lens location persist. Sweep phase, veil and enemies reset under their rules. Removing Lens leaves the language evidence and Carousel usable; leaving it preserves the cold-output fixture. No ordered run names a current route.

**Host and warning.** One staged placement across current R17 Jammed Pressure Approach and R20 Sampling Loop, objective 6, P05 Breath Bank. R17 first exposes one Flanker side lane, then a Glass Siphon's hose radius/bladder flash across two pillars. If the Flanker survives or follows the visibly connected route, it can reach R20; no second Flanker appears. R20's three-beat Bank indicator, draw lane and cap control are visible before the hand-cycle.

**Population and space.** Starting hypothesis: one Flanker and one Siphon, finite, no Caller. R17's long route and marked cutter panel are alternatives; R20's circular walk keeps two pillars between tether line and valve. The work position sits inside one Bank lane and outside the other on alternating beats. Entering Siphon radius triggers its wind-up; touching the valve begins staged work but spawns nothing.

**Objective and approaches.** Close a cap/complete the pressure cycle, capture the source counter, then choose Dynamo and regulator core against carrying space. (1) Opening rig: Sensor→Projector attacks a visible target; Manual→Barrier can catch the hose, and only a Dynamo already locally clamped to that Barrier would receive the impact—none is assumed before recovery. Use retraction plus the Bank's opposite lane for one cap. (2) Under the proposed later six-A allowance, Sensor→Projector plus Manual→Nozzle occupies five A/C; face Nozzle to push the committed Flanker into the draw lane while accepting recoil/clearance and one less unit of free carrying than a four-part rig. (3) Baseline: bait hose into pillars, leave radius, cross on the quiet beat, hand-close one cap and withdraw. Language may guide the marked bypass but cannot make it open.

**Cast and evidence extensions.** E06's finite population may also gate access to R18/R19 through a currently shown route, but it does not become a new encounter. Dorn at R18 requires a verified current side route; direct-hoist opening commits before its newly exposed route is walked. Yeva's later R19 variant requires counted R12 as current abort and a one-junction route. Any absent geometry waits. Story card/ratchet at R18, controlled culture comparison at R19 and source cycle at R20 are separate world-time observations.

**Persistence.** Cap, cutter, line-cycle, record-drawer, direct boundary, comparator observation, released rewards and object locations persist. Bank phase, tether, population and routes do not. A carried Dynamo/core returns once; an unremoved source does not. Death mid-rescue remains unconfirmed, distinct from an ordinary witnessed abort.

**Host and warning.** R23 Material Sorting Bay with current viewing relation to R21/R22 through R24, objective 7, P06 Resuscitation Grid. One Veilbearer and one Boltspitter are visible across separated evidence stations. The veil edge/anchors, bolt aim line, Grid seams/rising meter and transfer drive/fill direction all announce themselves before the player operates a pair or frames a record.

**Population and reinforcement.** Starting hypothesis: exactly those two creatures, no Caller. Veilbearer may cast only while it sees the astronaut and the visible Boltspitter remains behind the previewed sheet. No group arrives from a transfer line; material movement is not a creature route. If one creature is defeated, there is no replacement and the remaining role may lose its condition.

**Objective and approaches.** Operate/capture the corrective third pair and cross-register cases; decide whether to remove Cycler or leave the sorter. (1) Opening rig: break the Boltspitter line with the station, move around the veil edge so Sensor→Projector has a valid target, and face Manual→Barrier only for the locked bolt. (2) A four-A cargo-spending rig can install Manual Trigger (1)→Cycler (2)→Projector (1), leaving Sensor/Barrier aboard. A protected or invalid sample refuses before activation and is not spent; once Cycler validly accepts/consumes selected salvage, a later Projector refusal for readiness/target/occlusion does not refund it. (3) Baseline: walk ceramic strips, lure a strike onto the enabled Grid from cover, wait for recharge, or cut both clamps/throw the breaker before recording.

**Aster rescue extension.** If non-first Aster waits in R22, E07 must enter a quiet window before A1. The astronaut must separately walk a current ship→one-junction→R24 abort→R22 refuge route; R24 must be stocked and Aster operates her door. Transfer machinery does not transport her. Missing geometry waits. Her later lock is reversible from the outside panel and cannot seal the whole objective.

**Persistence.** Pair operations/captures, Grid clamp/breaker state, Cycler location, any consumed sample and confirmed survivor state persist. Grid charge, veil, aim and population reset. An interrupted capture yields no record; an interrupted transfer operation retains only its named completed fixture stage. Old pair locations after death are historical even when their records remain valid evidence.

**Host and warning.** R25 Balance Gallery, objective 8, P07 Breath Bank and P08 Phase-Balance; R26/R27 contain the optional Nozzle/Mara/exchanger follow-through. Bellback stands alone across the fixed rib so its dust draw, planted cone and collapse recovery can be read before two visible Pressers enter from an already shown waiting mouth. Bank frost/three-beat lane, plate outlines, plumb cage and swing arc remain simultaneously visible.

**Population and phases.** Starting hypothesis: one Bellback and two Pressers, all present before the player crosses the neutral line. Phase 1 reads Bellback and mechanism directions; phase 2 the same visible Pressers enter when local sight/sound reaches them, not on success; phase 3 is cap/pin work. There is no counter-wave if a build clears them early.

**Objective and approaches.** Complete one persistent cap or rib pin, then decide whether to recover exchanger core/Nozzle. (1) Four-A opening rig: Sensor→Projector supplies ordinary fire; Manual→Barrier faces Bellback's locked pressure cone or a Presser strike. Barrier does not stop oxygen drain or heat, and a Dynamo cannot feed unless locally clamped. (2) Under the proposed eight-A configuration, Sensor→Projector supplies the one ordinary actuator; Dynamo clamped to Projector's physical-output feed sends charge through Fork to eligible Arc/Capacitor branches under conservative splitting. A later paid rewire uses manual Capacitor release→Lens→Projector. Insufficient split/readiness/targets safely produce less effect, not extra power. (3) Baseline: leave the fixed cone, shelter at the rib, cross on the Bank's opposite beat, occupy the stirrup and hand-cycle one cap before retreating.

**Mara rescue extension.** After a real quiet window, R26 can host M1 only if the astronaut has walked its one-junction route and stocked counted R27 as clean abort. Mara chooses/operates her inner curtain and walks; her rack purge or seal is distinct from Story30 cultures. Nozzle removal changes the air knife, not the A↔B service transformer. Missing geometry waits rather than adding refuge stages.

**Persistence.** Completed cap/pin, rack choice, wall panel, converter mode, Nozzle/exchanger locations, and committed captures persist. Unpinned balance returns neutral and uncapped Bank phase resets on withdrawal/death. Placed loose mass stays where placed and warns/retriggers normally. Death returns carried rewards and shifts routes; it creates no rescue conclusion.

**Host and warning.** R28 Regulator Gallery, objective 9, P09 Resuscitation Grid; R29/R30 are optional current observation/staging rooms. One Shutterback begins with one Presser visibly inside its previewed shelter angle. One Caller and one finite pair wait along the named alarm route, shown before the R4 pull. Fan shadow, heel-clamp click, Grid meter/seams and Caller's throat/source lamp are all readable from R28's own protected mark.

**Population and trigger.** Starting hypothesis: Shutterback, Presser, Caller and one two-Presser eligible group. Pulling R4 is noisy and may start the Caller brace; only a completed call moves that already counted pair through the shown entrance. Cutting the alarm first prevents the move; it does not dismiss bodies already travelling. Nothing depends on R29/R30 adjacency.

**Objective and approaches.** Pull R4, record the responsive line and test R3's matching B plate; Capacitor removal is optional. (1) Opening rig: Sensor→Projector can target exposed Shutterback but cannot shoot sheltered Pressers through its fan; Manual→Barrier holds the direct lane while one pull stage commits. (2) Later Manual→Nozzle may rotate/break heel clamps or push an eligible body onto the Grid; recoil clearance is marked. Arc has no assumed permission through the fan. (3) Baseline: take the longer visible angle, cut the alarm lead, bait Grid discharge while on ceramic strips, or cut both Grid clamps, then use cutter/ordinary fire and withdraw after a pull checkpoint.

**Evidence and persistence.** R4 physical pull and new line are separate commits. Wrong pull order can lose the clean R3-B test but not Capacitor or general work. Pulls, scar, lines, plate location, alarm cut, Grid breaker/clamps and Capacitor location persist. Fan/veil-like occlusion, Grid charge and populations reset. Invalid plates produce no line and remain reclaimable; the interface never labels an interpretation correct.

**Host and warning.** Current R35 approach into compact R36–R40 core-boundary assembly, objective 11; P10 iris/two-clamp mechanism, followed by P13 isolation after access. Shutterback's shelter angle, Siphon radius/bladder, Caller/source and one finite answering entrance are visible before commitment. R35's two pillars, R36 selector lane, R37 first-clamp refuge, R38 longer fan flank/second clamp and retreat are physically related as accepted Room32 states.

**Population and phases.** Starting hypothesis: one Shutterback, one Siphon, one Caller and one finite pair of Pressers eligible to answer exactly one call. Phase 1 chooses exposed selector, longer flank or first clamp; phase 2 resolves/accepts the finite call and special pressures; phase 3 equalises and hand-cycles the iris. Opening R39/R40 creates no new combat population.

**Objective and approaches.** Open the bounded passage and inspect evidence; language is guidance, not a gate. (1) Proposed eight-A heat-lance network uses Sensor→Projector as the sole ordinary launch. A Dynamo clamped to Projector output may split charge through Fork to ready Arc/Capacitor; manual stored release needs a paid rewire and valid target. A clean win creates no replacement. (2) Four-A opening rig uses the pillars to break Siphon tether, Manual→Barrier for one physical hose/strike and automatic Projector only on visible targets, then finishes one clamp. (3) Baseline: bait hose into a pillar, cross during full retraction, cut the alarm, use the long flank outside the fan and complete one clamp before withdrawing. Gauges and the two-clamp route remain sufficient without language, parts or people.

**Mechanism/story boundary.** Pump/inward can equalise P10 directly; purge/outward visibly lowers the gauge and is reversible through neutral. P10 opens access but does not operate P13. R39 baffle evidence and R40 isolation are later world-time choices; re-seating isolation does not close the iris or walking joins. No treatment, survivor or diagnostic is required.

**Persistence and recovery.** Cut alarm, completed clamp/equality/iris stages, inlet plate/line, trapped strip capture, baffle and isolation stages persist under their owners. Tether, fan, pressure animation and population reset. R36-side controls keep recovery reachable; if R35 is not a current approach, the whole encounter waits. Death with an unfinished clamp loses that stage, returns carried objects once, preserves completed clamps and shifts external adjacency only.

Each row references its family's owned behavior rather than redefining it. “Neutral on return” means withdrawal or death resets only the temporary phase; it does not undo a listed checkpoint. A current entrance must show the warning and recovery face before commitment. If shifting removes that entrance relationship, the instance waits rather than operating through a wall.

| ID / family / host | Geometry, warning and physical limits | Stages, reset, persistence and feasible response |

|---|---|---|

| **P01 — Triage Relay 1 — R02 / E01** | Floor frame crosses the patient-bay leg; two destination lamps and shutter preview are visible from R01/R02 before the frame. Wrist reader distinguishes only its shown token class. The exposed alarm lead and manual dog are beside, not beyond, the frame. Qualifying astronaut, creature or visible loose mass can trigger it; nothing lighter or remote does. The selected-opening R02 board is a separate fixed interface and source. | Crossing commits route swap and one local alert to the shown entrance. Cut alarm and completed dog hand-cycle persist; frame occupancy clears and an undogged shutter returns neutral on withdrawal/death. Cancel/displacement loses only the current hand-cycle. Watch preview and cross, send eligible mass, cut/dog, or retreat through R01. No Fork is required; a board-installed Fork does not power the relay or erase its state. |

| **P02 — Sterilization Carousel 1 — R05 / E02** | One treatment arm sweeps the marked gait-side arc from a single movable detent. Painted floor sector, iris closure and heat glare warn before release; one cool bay and pillar are reachable without entering the gait interval. The manual clamp is on the entrance side. Heat is neither impact nor a Barrier-guaranteed block. | The arm warns→locks→sweeps→cools. Temporary phase returns to shown neutral on withdrawal/death. First clamp cut and final detent lock are separate persistent commits; interruption loses only the active cut. Time the cool bay, use pillar, move an eligible shield/Nozzle later, or cut/lock it. The astronaut-only gait test waits if its line is unsafe; P02 never performs that test. |

| **P03 — Triage Relay 2 — R08 / E03** | Floor frame intersects one branch beside the latch work face. Preview lamps show which branch will close and the only answering entrance. Alarm lead is reachable before the control; dog control and network-side release are visible across the candidate seam. The Clampcrawler can occupy latch control but is not a relay input while below the load mark. | A qualifying crossing commits the previewed swap and local alert. Alarm cut and dogged-open shutter persist; occupancy/reader rearm neutral. Latch stages belong to the join, not P03. The player can bait the preview, cut lead, dog a track, move eligible mass or wait for a current compatible face. Death cannot make a refused latch valid or reveal the other side. |

| **P04 — Sterilization Carousel 2 — R15 / E05** | Three visible detents sweep different cable-junction sectors. Transparent rail and two cool bays make the next arc readable while preserving the Veil/Bolt sight problem. The two clamp faces are reachable from different bays; Lens exchanger is outside the sweep and is a part source, not Carousel power. | Each sweep follows warn/lock/heat/cool and resets neutral after withdrawal/death unless detent is locked. Clamp one cut persists; second unfinished cut resets; final lock persists. Wait/route around, push a shield or eligible creature with Nozzle, or cut at a cool detent. Capturing a builder run does not rotate it, and removing Lens changes only the exchanger. |

| **P05 — Breath Bank 1 — R20 / E06** | Paired transparent vessels face two grated loop lanes. Three-beat indicator/frost names the next draw; two pillars and a dry outer arc are visible from entrance. Each cap is reached from a different quarter of the loop. It moves local gas/debris and increases shown suit drain in one lane; it never removes canisters, creates charge or moves rooms. | Neutral→three-beat warn→draw→expel. Phase resets neutral on withdrawal/death. Each fully hand-closed cap is a persistent commit and removes only that vessel's later draw; unfinished turn resets. Cross opposite lane, take dry arc, use hard cover/Barrier for debris, or close one cap and retreat. Language/pressure records predict no timing and cannot operate it. |

| **P06 — Resuscitation Grid 1 — R23 / E07** | Conductive seams occupy the transfer floor; ceramic strips and both feed clamps are visible from the evidence strip. A struck rail rings, seams light outward and meter rises before bounded discharge. Creature/body/astronaut impact on the rail can arm it; transfer flow, veil release and remote Projector hits do not unless they physically strike this named rail. | Arm→meter→one discharge→visible recharge; charge resets on withdrawal/death. Each cut clamp persists; thrown breaker commits disabled state. Reclosing is a separate authored action from the safe strip. Walk ceramic, avoid hits, disable, or lure a finite group and strike from cover. Grid arcs are not the portable Arc Emitter and cannot feed it or create a language result. |

| **P07 — Breath Bank 2 — R25 / E08** | One vessel draws across the cap control while the paired vessel draws across the approach, both visible beside Phase-Balance's neutral line. Fixed rib provides hard shelter. Warnings use the same three-beat/frost family learned at P05, but the different relation makes timing the stirrup the question. | Same family cycle/reset as P05. Each cap is persistent; closing the control-side vessel removes that draw on revisit while the other still cycles. Use prior cadence, hard rib, opposite lane, Barrier against debris, or close one cap and withdraw. Nozzle may move loose mass but recoil can displace the astronaut; neither Bank nor journal supplies oxygen. |

| **P08 — Phase-Balance — R25 / E08** | Paired plates flank the neutral line; dust roll, lit outlines and leaning plumb cage warn which side descends before two ribs swing. Fixed handrail and occupied stirrup resist local displacement. Only mass physically on plates counts; Nozzle can move eligible loose mass but not the room or sealed fixture. | Unequal load commits visible tilt; equal load/withdrawal/death returns unpinned chamber neutral. Two cutter releases and seated pin are separate persistent commits; loose objects remain and retrigger with warning. Time handrail, balance loose mass, occupy stirrup, pin one rib or clear combat first. An unfinished release resets; no tilt erases caps, joins or room adjacency. |

| **P09 — Resuscitation Grid 2 — R28 / E09** | Charged rail lies between regulator pull face and fan flank; ceramic bypass and both clamps are visible from R28's protected mark. Ring, seams and meter match P06, but Shutterback can occlude the direct exit. Only physical rail impacts arm it; responsive lines and plate seating do not. | Family arm/discharge/recharge resets on withdrawal/death; clamp cuts/breaker persist. Lure Presser across, use Nozzle with shown recoil clearance, walk ceramic or disable before R4 work. A discharge may expose a combat angle but never pulls a regulator, writes a line or consumes a plate. If fan geometry blocks safe recovery, use the baseline flank or wait. |

| **P10 — Pressure-receiver iris and two-clamp assembly — R36–R38 / E10** | In compact core group, R36 exposes empty vessel, paired gauges, pump/purge selectors, inward arrow, iris and approach-side reverse. R37/R38 each host one accessible mechanical clamp outside the closed iris. Flow arrow/gauge direction warns before action; local inlet B reply is a separate language interface on this assembly. | Direct path: set selector; pump/inward fills, purge/outward drains, neutral permits reversal. Equality is a commit; later hand-cycle commits iris open. Mechanical path commits each clamp separately, then equality/hand-cycle. Unfinished selector/clamp/cycle resets to prior checkpoint; completed clamps/equality/iris persist. Use language-guided selector, gauges, or both clamps. Closed iris never hides reverse/recovery, and absent R35 access waits. |

| **P11 — Clinical profile comparator — R19 / E06 extension** | Shielded twin trays share one recorded culture source but have physically separate active-profile and named-bypass feeds. Feed path, equivalent patch labels, tissue viewer and capture position are visible from the safe side. It accepts only the two controlled non-sentient patches; Mara's rack and M2 salvage are ineligible and refuse before placement. | Commit patch A placement, patch B placement, each completed exposure observation, then optional capture. An interrupted exposure records only prior committed observation; withdrawal preserves placed patches under their state. Full pair supports a bounded comparison. After P13 isolation, two ordinary closures show current disconnection only; missing live evidence is not regenerated. Player may postpone, remove power before exposure, or use physical bypass; no survivor/test is mandatory. |

| **P12 — Synchronization converter and roster — R34 / no combat placement** | Three-face plinth shows local test input and output arrows. One reversible mode maps A→B or B→A; the separate roster display reports joined/discovered-unjoined/anonymous counts. Local source powers a test only while present. It cannot read journal records, emit R, latch a seam or reveal a room. All mode/release controls are reachable inside R34. | Preview mode, hand-cycle selector, then final detent commits that mode. Interruption before detent leaves prior mode; committed mode persists through death. Diagnostic pulse is temporary and refusal consumes no join. Compare with R26's reversible A↔B and R33's fixed A→R, change mode, or ignore it and physically join compatible faces. Roster updates only from actual discovery/join state. Missing local source defers the test; missing compatible adjacency defers only the join opportunity. |

| **P13 — Reversible core isolation — R40 / after E10** | Old isolation collar, mixed-profile conduit, live coupling tell, human bypass and manual dogs occupy R40 inside compact core group. Preview at the R36-side release states: disconnect mixed profile; ordinary revival unchanged; reversible here. The same approach remains walkable after seating. It neither opens the iris nor changes persistent joins. | Stages: inspect tell→release bypass→seat collar→close dogs. Each closed dog commits; disconnection commits only when all are closed. Interruption/death preserves completed dogs and prior live state. Reopening uses the same reachable release, reverses dogs/collar in world time and reconnects only if source is active. Leave coupled, isolate, reopen or postpone. Cost is time/exposure and possible lost live comparison, not mortality or an ending. |

| Interface | Count boundary and concrete obligation |

|---|---|

| **R02/R03 service board/rack** | Selected-opening objective fixture, not P01. The board is the source, Fork passes compatible triggers, fixed conduit reaches rack/shutter, invalid sockets refuse, and retrieval remains possible from R02. Its stages are fully exercised in E01. |

| **R26 Decontamination transformer** | Fixed room service circuit, not a sixth family or P14. Forward A-in→B-out and reverse B-in→A-out are locally observable; final mode persists; Nozzle removal affects only air knife. Its early evidence is required by the candidate connection sequence. |

| **R33 Imaging exchanger** | Fixed A-in→R-out service transformation, no reversible mode and no new major slot. Input/output arrows and a dead-load test distinguish it from a static bridge. It requires current diagnostic power; walking joins remain useful without signal. |

| **Ordinary faces, latches and releases** | All R01–R40 remain eligible under the conditional whole-station contract. Each attempted seam names two stable faces, previews compatible direction, refuses safely before commit or persists as one join. Every critical release is network-side and reachable; ordinary joins are not capped at 13. Exact face distribution and complete assemblability remain unproven successor work. |

| **Doors, drawers, capture positions and part cradles** | Their physical states belong to rooms/objects/evidence, not mechanism-family counts. They still need warning, commit and recovery authoring: a door cannot hide its only release, a drawer capture takes world time, a removed part leaves its named function unavailable, and no observation operates another room. |

| Encounter | Objective / actual room host | Roles and major mechanisms | Cross-listed content counted elsewhere |

|---|---|---|---|

| **E01** | O1, R02–R03 compact assembly | 2 Pressers, Caller + finite pair; P01 | Fork R02, isolation bridge R03, selected opening board, R-3 window R01 |

| **E02** | O2, R05; conditional R06/R07 | Boltspitter, Presser; P02 | Stride R05, coupler R07, I1 rescue R05/R06 |

| **E03** | O3, R08 with current R09 | Clampcrawler, conditional Presser; P03 | First local latch/refusal/release; no part source |

| **E04** | O4, R11–R13 current short route | Flanker, 2 Pressers; no major mechanism | Arc R13; Y1/A1 mutually exclusive first rescue; wall/ward records |

| **E05** | O5, current R14–R15 relation | Boltspitter, Veilbearer, Presser; P04 | Builder runs, A/B/address, wall crawl, Lens R15 |

| **E06** | O6, current R17→R20; optional R18/R19 | Flanker, Siphon; P05, with P11 extension | Dynamo/core R20; last-transfer evidence; D1 R18/Y1-later R19 rescues |

| **E07** | O7, R23 with current R21/R22/R24 views | Veilbearer, Boltspitter; P06 | Three transfer pairs, Cycler R23, A1-later R22/R24 rescue |

| **E08 — setpiece A** | O8, R25; optional R26/R27 | Bellback, 2 Pressers; P07/P08 | Nozzle R26, exchanger core R27, A↔B clue, M1 rescue R26/R27 |

| **E09** | O9, R28; optional R29/R30 | Shutterback, Presser, Caller + finite pair; P09 | Regulator reply, Capacitor R28; no rescue |

| **E10 — setpiece B** | O11, current R35 into compact R36–R40 | Shutterback, Siphon, Caller + finite pair; P10, then P13 | Inlet reply, strip, evidence cell, isolation. P12/O12 is separate and has no encounter. |

The ledger contains six ordinary roles—Presser, Flanker, Caller, Boltspitter, Clampcrawler and Veilbearer—and all three special roles—Bellback, Shutterback and Glass Siphon. A role appearing in several rows is one reusable behavior, not another enemy definition. E08/E10 are already placements 8/10 and the only major setpieces.

Five rescue identities occupy disclosed extensions, not five new encounter IDs: I1/E02; Y1-or-A1 first/E04; D1 and Y1-later/E06; A1-later/E07; M1/E08. The alternative host selected by continuity changes authored geometry/state work but not the scene count. No rescue begins under live pressure: the finite encounter must be quiet and the current route separately walked/prepared. Home and evidence conversations remain among the existing 15 cast scenes aboard.

The current route is R01→R02⇄R03; its reverse breadcrumb is current only for this life. The retrieval-ready proposed manifest has the four one-unit opening parts active plus one two-unit canister, leaving four of ten illustrative carrying units. At R02 the player sees the loose one-unit Fork, both board outputs, P01 preview and the bridge's two-unit size before choosing. Capacity is a displayed hypothesis, not proof that the oxygen margin is sufficient.

**Installed branch.** The player previews Fork in the compatible board seat; invalid orientation would refuse before commitment. Completing installation moves that exact Fork out of carried property. The board supplies the source/energy and Fork passes compatible control triggers to rack and shutter; it is not power. With rack held and side shutter closed, the player crosses to R03 and completes one fastener. If displaced before the physical fastener checkpoint, the stage resets; after its click, it persists. The final fastener cues the finite hold. Sensor→Projector offers an ordinary launch only when Projector is ready and the nearest visible hostile is valid; Manual→Barrier is the separate faced special. Journal pause freezes Caller brace, weapon readiness, oxygen and fastener progress.

After bridge pickup, the player can cross back and reclaim Fork, paying exposed time; carried bridge and Fork then fit the example manifest. If death occurs before reclaim, the carried bridge returns once but installed Fork remains R02. If death occurs before bridge pickup, only committed fasteners persist and the bridge remains R03. In either case, the shift makes R01's old outer relation historical; R02/R03 remain a compact pair but are not promised as the next airlock neighbour.

**Carried branch.** The player picks up Fork and leaves it inactive; it consumes one carrying unit but no active area. The board selector must hold the rack, leaving the patient-bay shutter open. The same four-A opening rig fights the additional visible lane; no extra actuator is created by carrying Fork. The player may cut P01's alarm, finish one fastener and retreat to refill. Choosing an air-heavy two-canister manifest instead leaves only two units for the bridge, so Fork must remain installed/at source or another carried object must be deliberately dropped—never silently deleted. The physical baseline is identical board selection, cover, cutter and checkpointed withdrawal without relying on a successful shot.

The player has R21/R22 pair captures from a prior life, explicitly marked historical. Those records justify comparing direction but do not certify current access. In the present arrangement the astronaut has walked R24→R23, sees the corrective transfer pair, Grid, Veilbearer and Boltspitter, and confirms the retreat. The proposed loadout leaves Sensor and Barrier aboard: Manual Trigger (1)→Cycler (2)→Projector (1) uses four A/C, plus one two-unit canister under the illustrative capacity.

The player first selects an expendable pressure sample. A protected record sample or invalid material refuses before Cycler activation and costs nothing. On a valid press, Manual starts one wave and Cycler commits consumption before emitting its inspected force response. Projector then checks its own readiness and selected valid target. If the Veil makes that target invalid or the receiver otherwise refuses at that point, the already consumed sample stays spent and there is no shot; refusal does not rewind the wave. The player can instead wait around the finite sheet edge and press when the target/readiness preview is valid. A successful shot does not retarget, duplicate payload or create a second wave; any physical Grid strike follows the Grid's own local rule.

The equipment-free route uses ceramic strips and the Boltspitter's locked line to lure one eligible rail impact, waits through the visible Grid discharge/recharge, then cuts a clamp or frames the pair from cover. Beginning capture shows progress. Cancel/displacement before atomic commit yields no record; after commit the record persists even if the player is then forced to retreat. A completed Grid clamp remains cut; the other incomplete clamp resets. Reclaiming Cycler is a separate pickup—if carried at later death it returns once, while any sample spent and any Cycler left installed remain as committed. The death shifts external adjacency, preserves the pair capture/Grid cut and marks R24→R23 historical. Aster's rescue at R22 does not begin from those records; it waits unless a fresh, personally walked one-junction route with stocked R24 abort exists.

The strongest smaller staging proposal removes **P03, the second Triage Relay at R08**, and E03's conditional Presser reinforcement. E03 remains one of ten placements with its visible Clampcrawler, compatible/refused latch test, wall-fixed cradle, network-side release and three physical approaches. P01 at the selected opening still teaches the reusable Triage family; R08's essential station-joining discovery remains in place. The major mechanism count becomes **12** in this cut while the five family definitions, ten encounters and two setpieces remain.

The sacrificed experience is specific: objective 3 no longer asks the player to coordinate a relay's branch preview/cut alarm with a control-occupying Crawler, and the Triage family loses its second spatial interpretation. The cut makes E03 cleaner but less layered and shifts more teaching burden onto E01. No other room gains the removed relay, no enemy is invisibly moved, and no labor or duration saving is claimed. This is a proposal, not an owner-approved count.

**Exact counts.** E01–E10 are ten unique placements, with E08/E10 the two included setpieces. P01–P13 are 13 unique major mechanisms: nine instances of five reusable families plus four unique objective mechanisms. They reference 24 modules/40 rooms, 12 objectives, four assemblies, eight later part sources, four language chains, four story chains and five rescue identities without changing those counts. Six ordinary and three special roles are all used. The unselected first-survivor and later host variants remain conditional.

**State check.** Every brief identifies current entrance/retreat, warning, finite population or absence, first commitment, objective beyond killing, equipment choices, physical baseline, interruption, persistent work/object/evidence and reset state. Installed/carried/consumed states conserve identities. Journal pause advances nothing. Short rescues require current personally walked geometry, their own controls/air/abort place and a quiet window; ordinary abort and death-during-transfer remain distinct. All involved rooms retain network-side releases and whole-station eligibility without diagnostic/story/survivor gates.

**Strongest case.** Pressure changes what the player risks while doing discovery work rather than merely decorating combat. Bolt lines determine when a gait observation can commit; a veil changes whether a material-spending shot has a valid receiver; Bank/Balance timing turns one durable cap into a different revisit; the opening Fork choice links personal build, infrastructure and property state. Reused families gain meaning from changed geometry instead of palette swaps.

**Accepted costs.** Thirteen major mechanisms exceed the SMALL baseline by one. Multi-room placements demand compact/current-boundary discipline. Rescue variants add quiet-window and route states without new encounter IDs. Finite Callers require authored adjacent populations and entrances. The example rig choices add carrying/area and target/readiness cases. Mechanisms, service transformations, ordinary joins and enemy warnings may compete for attention; paper cannot show that their cues remain legible in a horde.

**Still-open detail.** Exact timing, damage, oxygen drain, population sizes beyond these hypotheses, thresholds, cooldowns, target overrides, overflow, simultaneous warning priority, alive-return population behavior, exhaustive arrangement/geometry/state variants, mechanism 13's scope disposition, full scripts, accessibility cue forms, asset selection, implementation and validation remain later work. Final content band, first survivor, global death/shift/transfer ordering, post-Sent mortality, story package, full-station behavior and endings remain owner choices. No fun, balance, performance, universal reachability or campaign-duration claim follows.