Mystery Button

v1.2.2·Updated 2026-04-02

No one knows what this button does. It could make you rich or bring disastrous and chaotic consequences.

Screenshots 1 screenshots

About this mod Author’s original text

Mystery Button

Introduction

MysteryButton is a mod for Lethal Company that adds a new enemy to the game: a button.

No one knows what this button does. It could make you rich or bring disastrous and chaotic consequences.

Will you dare to press it?

Origin

This mod was born out of frustration. We had found a mod featuring a big red button that you weren’t supposed to press, but its only effect was killing everyone in the facility.

On a whim, we decided to create our own mod to enhance our gaming experience even further.

After several weeks of beta testing, we decided to share this mod with the community.

Effects

Spoiler warning

Effect name

Description

Rarity

SpawnScrap (1)

Spawning 1 random scrap

15%

SpawnScrap (1 - 4)

Spawning between 1 and 4 random scraps

15%

SpawnExpensiveScrap (1)

Spawning a scrap with a maximum value of more than $150

15%

SwitchPlayersPosition

Exchanges the position between the person who triggered the button and another random person

10%

TeleportPlayerToRandomPosition

Teleports the person to a random position in the factory

7,5%

OpenAllSteamValveHazard

Break all steam valves

5%

BerserkTurret

All turrets switch to Berserk mode

5%

SpawnEnemy (1)

Makes an enemy appear from the nearest vent

5%

TurnOffLights

Switches power off

4,5%

ExplodeLandmines

Blows up all the mines in the factory

4%

OpenAllDoors

Opens all doors, with a 20% chance of opening a locked door

2,5%

CloseAllDoors

Closes all doors, with a 20% chance of locking a door

2,5%

PlayerDrunk

Apply a drunken state to everyone

2,5%

StartMeteorEvent

Immediately triggers the meteor shower

2,5%

RandomPlayerIncreaseInsanity

Set a random person's insanity to maximum

2%

SpawnExpensiveScrap (1 - 10)

Spawning between 1 and 10 scraps with a maximum value of over $150

0,5%

LeaveEarly

Immediately triggers the ship's departure in 2 hours' time

0,5%

SpawnEnemy (1 - 4)

Makes between 1 and 4 enemies appear from the nearest vent

0,5%

RevivePlayer

Resurrects a random dead player at the button position

0.5% (or if no landmine)

Credits

@Elirasza Github (dev)

@Tubbbe Github (dev / 3d)

@The_Elusive_Square_Moon Soundcloud link (sounds)

And our friends for the beta test

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-LethalLib

File & checksum

Filename
Mystery_Button-1.2.2.zip
File size
1.6 MiB