InsanityMod (v81 rebuild)

⚠️ Unofficial rebuild for Lethal Company v81, maintained by Cpt.Dristyler. Not affiliated with or endorsed by the original author. Install this instead of the original, not alongside it.

A sanity system for Lethal Company. Insanity rises inside the facility and drains outdoors / in light / near teammates. High insanity brings tunnel vision, camera shake and voice distortion; at 100% an optional transformation into a Masked. Includes a HUD ring, an end-of-round "Peak insanity" stat, and a custom Paranoia weather.

This rebuild (1.0.7) — by Cpt.Dristyler

• Fixed online HUD/round start for clients. Round start previously ran only from the server-only StartOfRound.StartGame, so on non-hosts the insanity ring stayed invisible. An idempotent round start was added to RoundManager.FinishGeneratingNewLevelClientRpc (runs on everyone).
• GhostGirlBoostPatcher runs host-only (IsServer) — removes Ghost Girl desync online.
• InsanityNetworkHandler.RegisterHandlers is idempotent — no duplicate NGO named-message registration each round.
• Rebuilt under the .NET 8 SDK against current dependencies (WeatherRegistry 0.8.8 / MrovLib 0.4.3). GUID com.insanitymod.lethalcompany unchanged — configs stay compatible.

Online note

Masked transformation and final stats use server-side NGO named messages. The mod must be installed by the host and all players on the same version (architectural requirement, not a bug).

Credits

• Original mod: Meeee
• v81 rebuild & multiplayer fixes: Cpt.Dristyler

Dependencies

• BepInEx 5.4.2100
• mrov-MrovLib 0.4.3
• mrov-WeatherRegistry 0.8.8

Changelog

Entries below are for this unofficial v81 rebuild by Cpt.Dristyler. Original mod by Meeee — the upstream release history is not duplicated here.

1.0.8 — by Cpt.Dristyler

• Fixed three NullReferenceExceptions logged each round from FinishGeneratingPostfix, UpdatePostfix and ShipLeavePostfix. All three came from the same source: VoiceTrack wrote cutoffFrequency / other parameters on AudioLowPassFilter and sibling filters whose owning VoicePlayback GameObject had been destroyed by the game between rounds (Unity-tracked "fake null"). The track was still cached in VoiceHaunt._tracks, so ApplyLiveDistortion and ResetFilters hit destroyed Components. Added a Unity-aware IsAlive guard at the top of both methods so they no-op on dead tracks.
• GUID com.insanitymod.lethalcompany unchanged — configs and dependencies stay compatible.

1.0.7 — v81 rebuild by Cpt.Dristyler

• Fixed online HUD/round start for clients. Previously StartRound() ran only from the server-only StartOfRound.StartGame, so on non-hosts _roundActive stayed false and the insanity ring was invisible. An idempotent round start was added to RoundManager.FinishGeneratingNewLevelClientRpc (a ClientRpc, runs on everyone).
• GUID com.insanitymod.lethalcompany unchanged — configs and dependencies stay compatible.

1.0.6 — rebuild by Cpt.Dristyler

• Rebuilt from a decompiled source under the .NET 8 SDK (netstandard2.1).
• GhostGirlBoostPatcher now runs on the host only (NetworkManager.Singleton.IsServer) — removes the client-side Ghost Girl desync.
• InsanityNetworkHandler.RegisterHandlers is idempotent (calls UnregisterHandlers before registering) — no duplicate NGO named-message registration each round.
• Restored [BepInDependency("mrov.WeatherRegistry")]; compatible with WeatherRegistry 0.8.8 and MrovLib 0.4.3. Added Langs.json (EN / RU / KO).