Top 173 modding open source projects

Mod Project Development Environment for Unity and Unity Games

Import/Export WMB/WTP/WTA/DAT/DTT/LAY/COL files for NieR:Automata

This repository contains some tools and guides on modding Diablo 2 Resurrected.

Fox Engine/MGSV/MGS dat, fpk, fpkd, pftxs and sbp unpacker/repacker

Open Terraria API - Mac, Linux & Windows

New vehicle features for GTA San Andreas mods

Mod packaging toolchain for AM2RLauncher mods.

I need more inventory space! A Fabric backpack mod.

Unreal Engine 4 Plugin for integrating mod.io - a modding API for game developers

A set of modding tools (level editor, etc) for the Ratchet & Clank PS2 games.

Various useful Hearts of Iron 4 modding Python scripts

Mass Effect Modder (MEM)

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

A powerful and easy to use API for modding BTD6, BATTD, and other Ninja Kiwi games.

Multi-purpose .NET memory-editing library

A collection of various VRChat mods aimed at improving user experience or fixing issues

A mod for Terraria that adds a system for Modifiers that can apply to items giving various bonuses

A low-ish level tool for easily writing and hosting WASM based plugins.

An open-source project created to reverse-engineering some Resident Evil 3 files

A Morrowind modding guide. New and experienced players welcomed.

This repository contains known string lines and file names for RAGE based games (GTA IV, GTA V, RDR 2)

BeatSaber plugin, adds much needed functionality to the song selection interface.

Game Indefinite Modding Suite Evolved

⚙️ New features & quality of life improvements for VRChat

A modified Try Mode Map for Heroes of the Storm to create a better experience with enhanced functionalities.

Lightweight mod making tool for ETS 2 and ATS

A work-in-progress modding tool geared toward UNDERTALE/DELTARUNE

A mod loader and modding API for GDevelop games.

Phantasy Star Online Blue Burst Addon Plugin

Patches for Demon's Souls to add functionality such as enabling debug menus.

Mod manager for The Witcher 3 🗃

Modern SDK for Xash3D FWGS engine, uses PhysX for physics, has advanced OpenGL renderer with a lot of features. Crossplatform, supported Windows/Linux. Based on XashXT and Spirit Of Half-Life.

A script to encrypt/decrypt and modify Diablo III saves

Run arbitrary code by patching OAT files

got tired trying to beat the katagawa ball^W^Wempowered scholar, and no accessible in-game console, so here we are

Wii U RAM TCP Debugger Client/Cheat Code Manager

Valheim template for quickly writing mods using BepInEx

Fragsurf is an actively developed standalone game based on HL2 surf and bhop movement mechanics.

Legacy mod manager for Mass Effect 3 (superceded by ME3Tweaks Mod Manager)

Take Paper Mario 64, buff old and new enemies to absurd levels, then rebalance Mario's overpowered strategies, and you've got one of the most difficult hacks of all time: Paper Mario Master Quest. The Discord:

A plugin for OpenRCT2 that automatically manages ride prices.

A C++ library and collection of tools that aims to make modding games in the Sonic the Hedgehog franchise easier.

Replay mod for Among Us

Multiplayer experience for Mafia: Definitive Edition

Half-Life PlayStation 2 map converter

A mod loader for Neos VR

A mod aimed at adding every essential for all Modded Minecraft Players!

An all-in-one modding tool and bot for Yu-Gi-Oh! Duel Links (Steam version)

Minecraft Mappings for legacy versions (currently just beta 1.7.3)

Repository for OpenIV localisation files and stuff

windows geometry dash headers

A powerful utility mod which expands the capabilities and provides more tools to Beat Saber modders.

Install Minecraft extensions with a user-friendly interface ⛏💎