The Complex

A procedurally generated Backrooms interior for Lethal Company (v81). You enter through Level 0's yellow wallpaper and buzzing lights. The complex then drifts through other areas: lights-out Level 0, a dim open-plan office floor, the Liminal Home basement and the tiled Poolrooms. Some rooms are rare, so keep exploring.

Install

Install with r2modman or the Thunderstore Mod Manager; the dependencies (BepInExPack, LethalLevelLoader and RemoveInteriorFog) come with it. Everyone in the lobby needs the mod, on the same version.

Settings

• The Complex rolls alongside the other interiors. Its weights are under Spawning in BepInEx/config/backrooms.level0.interior.cfg (LevelTags, PlanetNames).
• Set ForceAllMoons to true (host only) to get The Complex on every moon.
• LethalLevelLoader's own options for it are under Custom Dungeon: The Complex.

Reporting problems

Getting stuck, broken rooms, audio that never stops, performance drops: please include the moon name, a screenshot if you can, and BepInEx/LogOutput.log from your profile folder.

Credits

• "Lawn Mower" by sixpence (Sketchfab), licensed under CC BY 4.0. Polygon count reduced, rescaled, and textures resized and repacked for this mod.
• "Backrooms Movie - Acurrate Chair Movie" by FranquitoCOMPLEX (Sketchfab), licensed under CC BY 4.0. Level 0's chair; rescaled and textures resized for this mod.

Changelog

1.3.6

• Cleaned up the furniture set in Liminal Home's angled den.

1.3.5

• New entrance room: an A-SYNC research outpost with blast doors, server racks and a guide ping you can switch on at the lever.
• New furniture set in Liminal Home's angled den.
• Darker carpet in The Yellow Halls.

1.3.0

• New rooms in the offices.
• New rare sights in The Yellow Halls and The Yellow Halls (Lights Out).
• The Liminal Home entrance got a makeover.
• Palm trees can now turn up in the Poolrooms.
• Refreshed the wallpaper in The Yellow Halls.
• Fixes and polish.

1.2.0

• Road signs now turn up here and there across the interior.
• New wet floor sign in the Poolrooms.
• Remade pool ladders, lifeguard chairs, loungers and patio chairs.
• Cleaned up the office check-in desk.
• Fixes and polish.

1.1.0

• New rooms in Liminal Home.
• Furniture and decor overhaul across the interior.
• New window, vent and doorway visuals.
• A few new details in the Poolrooms.
• Fixes and polish.

1.0.6

Fixes

• Fixed missing rooms and generation bugs in the Facility, Mansion and Mineshaft when The Complex is installed. The Complex no longer changes vanilla interiors.

1.0.5

Fixes

• Fixed sounds cutting out, stuttering or not playing on moons with fly-covered scrap (Dine). Looping sounds now only play when you're close enough to hear them.
• The apparatus now sits down properly in its cradle instead of floating above it.
• Fixed stretched or repeating wallpaper on free-standing pillars, half-height walls, ceiling soffits, the Christmas tree room and the Speaker Room.
• Pillars no longer spawn tilted at odd angles.
• Half-height walls now have a baseboard and a trim cap.
• Fixed flickering on the staircase newel post in Liminal Home.

Changes

• New fire exit door: rounded hardware, a cleaner exit sign and no more pitch-black parts.
• Removed the railed fake pits. Large rooms can now roll a grove of pillars instead.
• Removed the black stains from the ceilings.
• Liminal Home's open staircase has baseboards on its lower floor, plus a few new details.
• The movie chair's wood is slightly warmer.