LethalElementsThetaV81

v1.3.7·Updated 2026-05-19

Unofficial rebuild. Five new weather effects (Heatwave, Solar Flare, Snowfall, Blizzard, Toxic Smog). Rebuilt for v81 by Cpt.Dristyler. Fork of LethalElementsTheta (pacoito), original by voxx. CC BY-N

About this mod Author’s original text

Lethal Elements Theta (v81 rebuild)

⚠️ Unofficial rebuild for Lethal Company v81, maintained by Cpt.Dristyler.

Not affiliated with or endorsed by the original authors. Install this instead of the

original, not alongside it. Licensed CC BY-NC 4.0 (see LICENSE).

Adds five weather effects to Lethal Company: Heatwave, Solar Flare, Snowfall,

Blizzard, Toxic Smog — each with its own hazards (heat exhaustion, walkie distortion,

snow accumulation/frostbite, toxic poisoning).

This rebuild (1.3.7) — by Cpt.Dristyler

  • Fixed HeatstrokeAudioPatch crashing the whole plugin on v81. The transpiler's

CodeMatcher pattern no longer matched the updated game IL and the unguarded

Advance/CreateLabel threw, aborting Awake() and silently disabling every

weather. The transpiler is now fail-safe (skips only the minor heatstroke audio-muffle

if the pattern is missing; all weathers keep working).

  • Fixed SnowHindranceTranspiler producing invalid IL on v81. It hardcoded local

index 8 in PlayerControllerB.Update; v81 renumbered locals, so the injected div

was rejected (InvalidProgramException), crashing init and spamming the log every

launch — which also broke other mods patching Update. It now reuses the operand of

the matched stloc.s instead of a hardcoded index.

  • Resolved a GetRandomNavMeshPositionInBoxPredictable overload ambiguity (v81 added a

second overload).

  • Rebuilt against LethalCompany.GameLibs.Steam 81.0.5; dependency manifest corrected to

mrov-WeatherRegistry-0.8.8 + mrov-MrovLib-0.4.3 (the versions it is compiled

against). GUID voxx.LethalElementsPlugin unchanged — configs and the asset bundle

stay compatible.

Credits

  • Original mod: voxx
  • Theta fork (upstream this is based on): pacoito
  • v81 rebuild & fixes: Cpt.Dristyler

Dependencies

  • BepInEx 5.4.2100
  • Evaisa-FixPluginTypesSerialization 1.1.4
  • Hamunii-AutoHookGenPatcher 1.1.1
  • mrov-MrovLib 0.4.3
  • mrov-WeatherRegistry 0.8.8
  • v0xx-TerraMesh 1.2.0

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:

BepInEx-BepInExPackEvaisa-FixPluginTypesSerializationHamunii-AutoHookGenPatchermrov-MrovLibmrov-WeatherRegistryv0xx-TerraMesh

File & checksum

Filename
LethalElementsThetaV81-1.3.7.zip
File size
3.0 MiB