MonstersGordion

Dynamic, configurable spawning of vanilla Lethal Company monsters inside the Company building on 71-Gordion, on the navmesh baked by NavMeshInCompanyRedux. Host-authoritative: only the host spawns, clients receive enemies through the game's own netcode — so only the host strictly needs this mod (everyone needs NavMeshInCompanyRedux).

Built and tested against game v81.

Features

• Timer-driven spawn cycle with a random interval in [MinSpawnInterval, MaxSpawnInterval].
• Per-enemy config blocks (Enabled, SpawnWeight, MinSpawnCount, MaxSpawnCount) generated for every spawnable enemy type found in the game, modded ones included (unknown types default to disabled).
• Global alive cap; enemies from the game or other mods count toward it by default, so combined populations stay bounded.
• Reachability-safe spawn points: the interior navmesh is split into connected regions and every spawn point / patrol node must have a complete path to the main hall — no more monsters stuck on roof patches, shelf tops or in pits.
• Floor balance (UpperFloorSpawnShare): configurable split between the ship-landing level and the basement, instead of pure area weighting.
• Outdoor/indoor pool split (OutsideEnemyShare): each spawn rolls which pool to pick from, so dogs/giants/Old Birds actually show up when enabled.
• Interior patrol nodes are generated on the navmesh (the Company building has none), and spawned enemies are forced into interior AI mode.
• RespawnOnLoad: wipe and repopulate on every landing, or top up existing.
• Verbose DebugMode logging of every decision the spawner makes.

Dependencies

Required (declared in the Thunderstore manifest):

Optional, auto-detected at runtime (no hard dependency):

Installation

r2modman / Thunderstore Mod Manager: install from Thunderstore; dependencies are pulled in automatically.

Manual: drop MonstersGordion.dll into BepInEx/plugins/ and install the required dependencies yourself.

Configuration

BepInEx/config/Timofey.MonstersGordion.cfg, created on first run. Changes require a game restart (standard BepInEx behaviour).

Per-enemy sections: [Enemy.Flowerman], [Enemy.Bunker Spider], … with Enabled, SpawnWeight, MinSpawnCount, MaxSpawnCount. Defaults: interior threats enabled; outdoor giants/dogs/Old Birds, bees, Butler Bees and Manticoil disabled (enable them yourself); Lasso and Red pill hard-excluded.

Building from source

Requires the .NET SDK 8+ and NuGet access — game assemblies come from the LethalCompany.GameLibs.Steam package (stripped + publicized), no manual DLL copying.

dotnet build -c Release

Output: bin/Release/netstandard2.1/MonstersGordion.dll. Set the LC_PLUGINS environment variable to your plugins folder to auto-copy after each build.

To assemble the Thunderstore package zip:

powershell -ExecutionPolicy Bypass -File build-package.ps1

Project layout

MonstersGordion/
├── MonstersGordion.csproj      # SDK project, NuGet-only references
├── NuGet.config                # nuget.org + BepInEx feed
├── manifest.json               # Thunderstore manifest
├── icon.png                    # Thunderstore icon (256x256)
├── CHANGELOG.md
├── build-package.ps1           # builds dist/MonstersGordion-<ver>.zip
└── src/
    ├── Plugin.cs               # BepInEx entry point, Harmony bootstrap
    ├── PluginConfig.cs         # all config entries incl. per-enemy blocks
    ├── EnemyCatalog.cs         # EnemyType discovery + exclusions
    ├── NavMeshSampler.cs       # tiered, reachability-checked point sampling
    ├── LandingWatcher.cs       # polling-based landing/leave detection
    ├── CompanyMonsterSpawner.cs# timer, pools, weighted pick, caps, cleanup
    ├── Patches/                # ShipLeave/OnDestroy cleanup, death logging
    └── Compat/                 # ToilHead, StarlancerAIFix, BCME, scanner

How it works (short)

On every landing on Gordion (detected by polling StartOfRound.shipHasLanded, host only) the mod triangulates the navmesh, welds it into connected regions, anchors reachability in the main hall, generates patrol nodes, and starts the spawn coroutine. Each cycle: roll interval → check GlobalCap → fill MinSpawnCount deficits first, otherwise roll outdoor/indoor pool → weighted pick → tiered reachable spawn point → RoundManager.SpawnEnemyGameObject → two frames later force interior AI (SetEnemyOutside(false), custom node set, agent warp) and roll the ToilHead turret. Leaving the moon stops everything and (by default) despawns the mod's enemies.