OpenLib

v0.4.3·Updated 2026-03-31

Open-source development library for LethalCompany Mods, maintained by darmuh

About this mod Author’s original text

OpenLib

IMPORTANT VERSION INFORMATION:

Want to modify a Bepinex Config File via a webpage?

Try OpenLib's Bepinex Config Management Webpage (v0.1.2)
Simply upload a config file to the page and it will generate a form for the given config file.
Once you are done modifying the form on the webpage you can then click the button at the bottom of the page to compare your changes to the original config file.
When the page is done comparing your changes, it will save/download a new config file to your device.

Open-source development library for LethalCompany

This is a library of commonly used methods from darmuh's mods. Allowing for flexible additions to the terminal and unified game patching.
This will remain open to the public for collaborative efforts. All I ask is that you maintain compatibility with any mod that uses this library.
2026 Update: I am currently working on porting many of these features to Dawnlib and ending any future development on Openlib.
Mods depending on this library will be migrated to Dawnlib in the future
Openlib will continue to be updated with bugfixes as-needed until all mods have been migrated successfully

Icon Attribution:

Online library icons created by Ajmal Naha - Flaticon

Last update to this page:

March 30th, 2026 (version 0.4.2)

Changelog may have more up-to-date information than this page at times.

The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
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.
Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
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-BepInExPack