Castellum Carnis

v1.1.3·Updated 2025-08-02

A living flesh, meat, and bone interior made for vanilla-esque dungeon gameplay

Screenshots 8 screenshots

About this mod Author’s original text

The Company's influence has spread across the stars...

The Fortress of Flesh is a custom interior built with vanilla-esque gameplay in mind. Its generation is broken up between two halls of flesh, with a hollow bone layout in-between where the Apparatus is housed.

New detailing may be added in the future. Cull Factory is recommended, but not necessary. Includes configs for:

  • Employee corpses
  • Skylights changing with the time of day
  • Entrance stingers
  • Droplet particles
  • Extra scrap spawns
  • Certain terrain matching the moon
  • Apparatus event color correction
  • "Gutless Mode"

Uses the content tags Bloody, Flesh, Living, and Organic.

Screenshots

Gutless Mode

Default Moon Chances

| Moon | Chance |

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

| 41 Experimentation | 80 |

| 220 Assurance | 150 |

| 56 Vow | 300 |

| 21 Offense | 100 |

| 61 March | 10 |

| 20 Adamance | 100 |

| 85 Rend | 160 |

| 7 Dine | 70 |

| 8 Titan | 200 |

| 5 Embrion | 60 |

| 68 Artifice | 80 |

| 44 Liquidation | 150 |

| Custom Tag | 75 |

Can't Find Scrap? (Spoilers)

Scrap spawns are tightly controlled in designated loot rooms and will not spawn in a common labyrinth/network hallway. The flesh area's spawns are based off of Factory loot rooms, while the bone area's spawns are based off of the Manor. To compensate for loot density, the interior forces 6 extra scrap spawns like the Mineshaft.

Concepts (Spoilers)

Credits & Special Thanks

  • Gothgutts - Thumbnail, inspiration, testing, and support
  • Yoshi - Testing and support
  • Eva - Testing and support
  • CJ - Inspiration and support
  • Lemon - Inspiration and support
  • Steven - Support
  • Pspeed - Tileable Worley/Voronoi noise textures
  • MajorBlue7Mods - Interior tutorial
  • Pixabay - Free Sounds
  • DannyB - Apostate stinger
  • Columbia Orchestra + HPH - Secret music
  • Lethal Company Modding Discord - Assistance and support
  • Xu Xiaolan - Fixing my Unity project scripts
  • NikkiDarkMatter - Help with the stinger
  • And YOU for reading this far: )
  • If you wish to support me further beyond downloading, you are more than welcome to leave a small tip. It'd mean the world to me and help me devote more time to the horrors.

"Yeah, I'm not a huge fan of how this interior makes me feel on the inside."

  • Call_Me_Bread

Install & use Install: BepInEx plugin

  1. The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
  2. Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
  3. Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
  4. Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.

Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file.

Dependencies

Install these first, or the mod will not work:

IAmBatby-LethalLevelLoaderJacobG5-JLL

File & checksum

Filename
Castellum_Carnis-1.1.3.zip
File size
68.3 MiB