Platform Zero — Last Service

Experimental alpha · 0.1.0 · All players required

An abandoned Company transit station still running a service cancelled in 1977. The departure board promises to take you home. It does not specify whose home.

This build compiles, but has not been playtested inside Lethal Company, solo or multiplayer. Visuals, navigation, exits and multiplayer integration remain unverified. Start with a separate test profile and a fresh save.

What is inside?

• A long, abandoned concourse and six rooms: left luggage, signal control, lost property, staff canteen, dead letter office and waiting room.
• Counterfeit fire exits and suspicious service doors. Two dangerous doors are selected from the daily map seed; the others only knock back.
• The Conductor, a scripted apparition that emerges from a wrong door and sends nearby victims to a red waiting room. A return bell and timed return are included.
• A spectral train that passes through the concourse and temporary nine-second lighting failures.
• Three abandoned tickets to punch, a hidden message and unsettling employee notices.

Playing

1. Install using Thunderstore Mod Manager or r2modman. BepInEx is the only declared mod dependency.
2. Install the same version on every player, including the host. Unmodded clients and late-join mods are unsupported; this alpha does not enforce matching versions.
3. Land on Experimentation. Platform Zero replaces its playable interior every visit. Other vanilla moons are unchanged.
4. Use the game's normal interaction binding. Genuine exits say SURFACE and VERIFIED COMPANY SEAL.

For manual installation, install BepInExPack 5.4.2100, then merge this archive's BepInEx folder into your game or mod-profile folder. The plugin belongs at BepInEx/plugins/PlatformZero/PlatformZero.dll.

Remove or disable Platform Zero to uninstall. The mod does not store persistent save data.

Alpha scope and compatibility

• This is a runtime interior replacement, not a LethalLevelLoader dungeon asset. LethalLevelLoader is not required.
• The architecture is fixed; trap assignments and event timing vary. The original dungeon still generates in the background, with entrance arrival points and scrap/indoor enemy spawn nodes redirected into the station.
• The Conductor is an encounter apparition, not a roaming enemy AI. Ordinary indoor enemies supply the roaming threats.
• Original map hazards are suppressed on station days. Apparatus, breaker boxes and original dungeon story logs are not relocated. No custom sellable scrap is included.
• Other interior replacers, custom dungeon selections, culling mods and enemy overhauls are untested. Use a minimal profile initially.
• If station generation fails on any player, end the test round. That player may fall back to the vanilla interior while other players see the station. Preserve everyone's BepInEx logs for diagnosis.

The DLL was compiled against the creator's installed game assemblies. Protocol serialization checks passed; these are not a substitute for gameplay testing. Full validation details are included in VALIDATION.md.

Credits and license

Original code, generated geometry and synthesized sounds. MIT license included. Requires the BepInEx plugin framework. Lethal Company and its assets belong to their respective owners.

Changelog

0.4.1

• Added a large, double-sided PLATFORM ZERO entrance sign with amber trim and LAST SERVICE 00:00 / YOU HAVE ARRIVED text.
• Added teal PLATFORM ZERO / COMPANY TRANSIT identity plaques in every third corridor, with sector numbers.
• Kept permanent identity signs separate from the event-controlled departure board.
• Signs have no collision and add no lights. Layout generation, scares and loot behavior are unchanged.
• Compiled successfully; in-game sign appearance and readability remain untested.

0.4.0

• Doubled generation to 32-40 explorable rooms from a pool of 44 unique themes.
• Added 24 surreal chambers with bespoke procedural sculptures, including an inverted apartment, ceiling ocean, clock cathedral, gravity well, paper storm and nursery of stars.
• Guaranteed at least 16 surreal themes in each layout; no repeated themes.
• Expanded to a variable-spaced 7x7 footprint with 4-9 independent loops and 4-6 metre corridors.
• Added room heights, clipped-corner and cruciform shells, eight furnishing variants, and four corridor treatments.
• Added nearby-only animation for cosmetic floating objects; preserved clear floor crossings and exit strips.
• Preserved the 4,000-5,000-credit initial scrap target, quota-based count bonus and fair interior selection.
• Updated network message channels: every peer must use 0.4.0.
• Compilation and automated checks passed. In-game visuals, performance and multiplayer remain untested.

0.3.1

• Added a seeded initial positive-scrap value target of 4,000-5,000 credits, averaging 4,500.
• The host adjusts values before native synchronization; relative item values are approximately preserved with exact integer totals.
• Kept the quota-based count bonus: later quotas spread the same value budget over more pieces.
• Added the host setting Target total value to opt out and retain native moon/mod values.
• Applied the budget once per station generation and preserved zero/negative special values.
• Passed 10,000 loot-budget tests, including rounding, repeat application and overflow; sampled target mean was 4,504.52 credits.
• Compiled against installed assemblies. Live gameplay and multiplayer remain untested.

0.3.0

• Replaced the straight concourse with a seeded maze of 16-20 interconnected rooms and 2-5 independent loops.
• Added eight room themes, bringing the pool to 20, with no repeated themes in a layout.
• Randomized the footprint, passage network, room dimensions, furnishing variants, tickets and trap assignments.
• Reserved clear central crossings and moved genuine fire exits to rooms farther from the entrance.
• Adapted ghost-train routes, watchers, main-entrance queries and navigation checks to the network.
• Moved the inspection room away from the expanded station footprint.
• Preserved fair interior selection, Random Interiors integration and the capped quota-based loot bonus.
• Updated event message channels; every player must use 0.3.0.
• Passed compilation, 10,000 maze-plan checks and 204 protocol cases. Live gameplay and multiplayer remain untested.

0.2.0

• Replaced the Experimentation override with a distinct LethalLevelLoader interior entry across dungeon moons.
• Integrated with Random Interiors' global pool and no-repeat rotation; added adaptive average-weight selection when it is absent.
• Expanded to 8-12 seeded rooms drawn from 12 themes, with varying sizes, station length, barriers and lighting.
• Added generator hall, quarantine ward, records archive, commuter chapel, pump station and screening room.
• Randomized ticket/trap locations and reachable scrap placement; added an attendant apparition event.
• Added +5% scrap count per completed quota on station rounds, capped at +25%, preserving item values.
• Updated fire-exit placement and navigation checks for variable layouts.
• Requires LethalLevelLoader 1.7.13. All players must update to 0.2.0.
• Compilation and automated logic checks passed; live gameplay remains untested.

0.1.0

• Initial experimental alpha of the Platform Zero interior for Experimentation.
• Added six themed rooms, counterfeit exits, Conductor inspections and a red waiting room.
• Added ghost-train and blackout events plus a three-ticket Easter egg.
• Added native interaction prompts, host-controlled event messages and generation-time navigation checks.
• Compilation and protocol checks passed. In-game and multiplayer playtesting has not been performed.