A Lethal Company mod that tracks player sanity and makes high-insanity runs genuinely terrifying.
Game version: V80–81 | BepInEx: 5.4.23.5+
Insanity (0–100%) accumulates while you're inside the facility and drains while you're outdoors. On the ship it stays flat.
| Trigger | Effect |
|---|---|
| Visible enemy nearby | +rate per second (scales by enemy type) |
| Watching a teammate die | instant spike |
| Blood Night weather | rate multiplier |
| Certain in-game events | additional multipliers |
Enemy threat scale (examples): Bracken / Ghost Girl = 2.0×, Jester / Coilhead = 1.5×, Forest Giant / Masked = 1.4×, Sand Worm = 1.8×, Thumper = 0.8×
| Condition | Effect |
|---|---|
| Teammate within 6m | −0.15/s |
| Flashlight on / in ship | −0.1/s |
| Near a facility light | −0.1/s |
Being with a teammate near a light source in the facility effectively keeps insanity stable.
Things start happening as insanity climbs. Find out for yourself.
Nearby teammates' voices begin to sound subtly warped. The mod also captures a rolling 30-second buffer of teammate voice chat and starts playing back distorted snippets spatially in 3D — you'll hear phantom voices from positions that seem to move.
A deep red vignette slowly pulses in from the edges of the screen. The pulse and color intensity increase toward 100%.
Also at 80%+: the Ghost Girl (DressGirl) slightly increases her haunt speed while targeting you.
Perlin-noise position and rotation jitter on the camera. Starts subtle, gets pronounced at 100%.
Insanity peaks. Movement gradually slows to a halt, the screen fades to black, and a Masked enemy spawns at your position wearing your suit. You die.
The transformation can be disabled in config (EnableMaskedTransform = false).
Pulling the apparatus from the facility cuts the power — and doubles the insanity rate inside for the rest of the round. The effect is round-wide; any player entering the facility after the pull is also affected.
A new custom weather event. During Blood Night the sky turns red, insanity accumulates 20% faster in the facility, and enemies are more active. Appears at roughly 3% chance per night (configurable).
A small ring meter in the bottom-right corner of the screen shows your current insanity percentage. Color shifts white → yellow → red as it fills.
After the ship leaves, the host broadcasts each player's peak insanity for the round to all clients.
All values are in BepInEx/config/com.insanitymod.lethalcompany.cfg.
| Key | Default | Description |
|---|---|---|
InsanityRateInFacility |
0.167 |
Insanity/s inside facility |
InsanityRateOnShip |
0 |
Insanity/s on ship |
InsanityDecayOutdoor |
0.8 |
Insanity/s lost outdoors |
BloodNightMultiplier |
1.2 |
Rate multiplier during Blood Night |
BloodNightSpawnWeight |
20 |
Spawn weight (other weathers: 100) |
TunnelVisionThreshold |
80 |
% at which vignette begins |
MobVisibilityScale |
1.0 |
Global multiplier for enemy-visibility rate |
MobVisibilityRange |
30 |
Max distance (m) for enemy detection |
TeammateBuffRate |
0.15 |
Rate reduction near a teammate |
TeammateBuffRange |
6 |
Range (m) for teammate buff |
LightBuffRate |
0.1 |
Rate reduction when illuminated |
LightProximityRange |
8 |
Range (m) to facility light |
DeathWitnessSpike |
25 |
Insanity spike when witnessing a death |
DeathWitnessRange |
40 |
Max distance (m) for death witness check |
GhostGirlBoostThreshold |
80 |
% above which Ghost Girl haunt speed increases |
VoiceHauntThreshold |
70 |
% at which voice distortion + haunting begins |
ApparatusMultiplier |
2.0 |
(spoiler) Rate multiplier inside facility after apparatus is removed |
EnableMaskedTransform |
true |
(spoiler) If false, the 100% effect is skipped entirely |
InsanityMod.dll into BepInEx/plugins/InsanityMod/Built for Lethal Company V80–81. Uses WeatherRegistry by mrov and Dissonance Voice Chat for VOIP integration.