Top 173 modding open source projects

BodySlide and Outfit Studio, a tool to convert, create, and customize outfits and bodies for Bethesda games.

Rust game extension for the Oxide modding framework

An in-game explorer and a suite of debugging tools for IL2CPP and Mono Unity games, to aid with modding development.

Metamod:Source - C++ Plugin Environment and Detour Library for the Source Engine

Payday 2 Better Lua injecTor

Old repository for the Oxide mod. See individual repositories for updates

The one and only mod loader for Anno 1800, supports loading of unpacked RDA files, XML merging and Python mods.

Dark Souls II / Dark Souls III / Bloodborne bdt, bhd, bnd, dcx, tpf, fmg and param unpacking tool

RocketMod — .NET Game Server Plugin Framework

A fun 2D retro platformer inspired by Sonic games and a game creation system.

Modding API with a typesafe hierarchical key-value database with inheritance and dynamic patching 😺

Tools & code for use with Borderlands: The Pre-Sequel!

Open Source Editor of Smash 4 Filetypes

OpenMod .NET Plugin Framework

PapyrusDotNet - A .NET Papyrus Compiler for Fallout 4 and Skyrim

Config based patch management for Subnautica and Subnautica: Below Zero

SDK for integrating mod.io into your game - a modding API for game developers

Unturned 3 implementation of the RocketMod — .NET Game Server Plugin Framework

Enhancements for Black Ops' modtools

A small template for Android Hooking with Substrate. (Includes a mod menu written in Java)

Windows Application that can read and save the RDA file format used in Anno 1404, 2070 and 2205.

Unity Plugin for integrating mod.io - a modding API for game developers

Tools & code for use with Mass Effect: Andromeda.

A Python library for manipulation of Doom WAD files

A load order optimisation tool for the Elder Scrolls (Morrowind and later) and Fallout (3 and later) games.

Unity / XNA game patcher and plugin framework

Free (as in freedom) media files for openage.

Tools to help the development of xoreos

Miscellaneous tools for dealing with smash 4 files.

CAMM (Crystal Alien Map Maker) open source level/map editor for CrystAlien Conflict.

Dark Souls III archive file information

A VRChat modding library and a mod to implement some requested features and enhance the social part of the game

Tremor mod, for tModLoader Terraria

Add / Reset your Skyrim perks using generated scripts with an easy to use graphical interface! 📝 🎮

Archive manager for Wii U filetypes

A big library of ACS functions for Zandronum modding

The General Plugin Template Project of Starcraft adapted to Visual Studio 2008

A mod to restore and add functionality to the Halo 2 Editing Kit.

An MIT licensed editor for the computer game "Diablo 1".

Unity Plugin Manager

Cross-platform runtime mod loader and API for any Unity-based game. Supports Unity 5 and up!

A Halo Online modification

SourceMod - Source Engine Scripting and Administration

Tools & code for use with Borderlands 2.

Libre Minecraft mappings, free to use for everyone. No exceptions.

Tools for handling firmwares of DJI products, with focus on quadcopters.

It's a Doom editor

A C# modding swiss army knife, powered by cecil.

A mod list downloader & installer for Skyrim/Oblivion and Fallout games

Scripts to install Debian on your Kindle

A swiss army knife for modding Bethesda games. This is the main repository.

A modding library for Valheim, with the goal of making the lives of mod developers easier.

IL patcher for use with adding Oxide support to .NET games

The most advanced and modern Spore modding tool.

📦 The MC modpack manager for professionals.

Patch for Civilization V to allow modded multiplayer. Currently under development.

Change *.ini settings and install mods.

The Skyrim masterlist.

Original Mafia2 Multiplayer modification

A new level editor for the Halo games based on a CSG/Brush workflow, similar to Source/Quake level editing.