PersonalHelper

It knows everything.

A small atmospheric horror mod for Lethal Company. No new enemies, no new gear: only the feeling that something in the facility is aware of you.

Install

Install BepInEx 5 (Thunderstore: BepInEx-BepInExPack-5.4.2100).
Drop PersonalHelper.dll into BepInEx/plugins/PersonalHelper/.
Drop your own media into BepInEx/plugins/PersonalHelper/Assets/ (see below).
Launch once, then edit BepInEx/config/experimenter.personalhelper.cfg.

Every player in the lobby needs the mod installed. The host is authoritative: the host rolls the dice and broadcasts events, clients only play them.

Events

1. Distant Sound

85% chance, once per round. The first time anyone steps inside the facility, the host rolls and broadcasts. Each player hears the sound 22-40 m away from themselves, from a random direction, audible up to 90 m. Everyone hears it, nobody hears it from the same place.

2. Vigil

67% chance, rolled once per round. If it wins, then as soon as time spent inside the facility reaches 60 s, 2D music starts for everyone at once and rises for 90 seconds. At 1:30 a stinger plays, a full-screen image appears, the player dies, the music cuts.

3. Rare flashes

While you are inside, a 4%-per-minute roll replaces a single frame of your screen with something. Too fast to be sure you saw it.

4. The Stalker (new in 0.2.0)

Walk straight, without turning, for long enough and something spawns behind you. It does nothing. It waits. The moment you turn around and it enters your view, a full-screen image and a sound hit you, then fade out quietly. It despawns instantly. Non-lethal by default. Once per cooldown, capped per round.

5. Video (admin only)

The admin picks a player and a full screen video takes over their screen for 11 seconds, sound and all, then hard cuts back. The length is configurable per call from the panel. Nobody else sees it, and there is nothing they can press to make it stop.

6. Lockdown (admin only)

When every living player is inside the complex, the admin can seal the main entrance. Only the fire exits work. A full-screen image pulses (dim -> bright), global music plays and a synced countdown runs on everyone's HUD. When it hits zero, whoever is still inside is dealt with.

Admin panel

Authorization is by SteamID64, validated server-side. Put your IDs in the config:

[Admin]
SteamIDs = 76561199058784388
PanelKey = F6

A client can request anything it wants: the host checks the sender's SteamID against the list and silently drops the request if it does not match. Editing your own config does not make you an admin.

From the panel you can:

fire any event at one player or at everyone
trigger Distant Sound, Vigil, Jumpscare, Flash and Stalker on demand
play a full screen video on one player's screen, with a custom length
start / stop Lockdown with a custom duration
see who is inside the facility right now

Custom sounds and images

Everything is loaded at runtime from BepInEx/plugins/PersonalHelper/Assets. Drop your own .ogg / .wav / .mp3 and .png files into the subfolders and restart the game. One file per folder is picked at random each time.

Assets/
  sounds/
    distant/     <- event 1, the far away sound
    music/       <- event 2 and lockdown, the global track
    stingers/    <- the scream on the killing image
    meme/        <- the stalker payoff sound
  images/
    jumpscare/   <- the image that kills you
    flash/       <- single-frame flashes
    meme/        <- the stalker payoff image
    lockdown/    <- the pulsing full-screen image
  videos/        <- .mp4 / .webm for the admin video event

No files in a folder = that part is silently skipped. Nothing crashes.

Debug hotkeys

Key	What it does
F7	Event 1: distant sound for everyone
F8	Event 2: start music and the 1:30 countdown
F9	Image + stinger + death
F10	Random flash
F11	Reset round state
F12	Play a video locally (test only, does not hit other players)
F6	Toggle the admin panel (admins only)

Set Debug/HotkeysEnabled = false before you play seriously.

Music never loops: a clip plays once and stops, so make your track at least as long as Event2/BuildupSeconds.

Config

BepInEx/config/experimenter.personalhelper.cfg

Section / Key	Default	Meaning
Event1 / Chance	85	Chance of event 1, %
Event1 / MinDistance - MaxDistance	22 / 40	Sound distance, m
Event1 / MaxAudibleDistance	90	Falloff range
Event2 / Chance	67	Chance of event 2, %
Event2 / TriggerAfterSeconds	60	Time inside before the music
Event2 / BuildupSeconds	90	Buildup to the death (1:30)
Event2 / StartVolume - EndVolume	0.05 / 1.0	Volume from and to
Event2 / ImageSeconds	1.2	How long the image stays
Event2 / KillPlayer	true	Kill the player or not
RandomFlash / ChancePerMinute	4	Flash chance per minute, %
Stalker / Enabled	true	Enable the stalker
Stalker / StraightWalkSeconds	11	Straight walking before it spawns
Stalker / SpawnDistance	7.5	How far behind you it spawns
Stalker / CooldownSeconds	300	Cooldown between stalkers
Stalker / MaxPerRound	2	Cap per round
Stalker / KillPlayer	false	Lethal or not
Video / Seconds	11	Length of the admin video, seconds
Video / Volume	1.0	Video audio volume
Video / KillPlayer	false	Kill the player when the video ends
Lockdown / DefaultSeconds	120	Default countdown
Lockdown / KillOnTimeout	true	Kill whoever is still inside
Lockdown / PulseSpeed	1.4	Pulses per second
Admin / SteamIDs	(empty)	Comma separated SteamID64 list
Debug / HotkeysEnabled	true	F6-F12

Building from source

src/ is not needed in the release build.

cd src
build.bat

Requires the .NET SDK. Restores LethalCompany.GameLibs.Steam from NuGet, so no manual DLL copying from your game folder.

New Input System

Hotkeys use UnityEngine.InputSystem.Keyboard.current; the old UnityEngine.Input API is not used.