A free mixin-based injection hacked client for Minecraft
A mod to make and play Terraria mods. Supports Terraria 1.4
Godot is a powerful cross-platform game engine
Open source Old School RuneScape client
Set of Python modules designed for writing video games
Home theater software and entertainment hub for digital media
Free and open source real-time strategy game
Custom launcher for Minecraft to easily manage installations
A free/open source client and automation tool for Ragnarok Online
The main repository for the development of the evolution game Thrive
Generate any location from the real world in Minecraft
A refreshingly simple data-driven game engine built in Rust
3D space trading and combat game
A free and open-source Touhou Project fangame
A retro game engine for Python
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Open source clone of the Age of Empires II engine
The Ren'Py Visual Novel Engine
Powerful, mature open-source cross-platform game engine for Python
Solar2D Game Engine main repository (ex Corona SDK)
Naev is a 2d action/rpg space game, action, rpg and simulation
Open source HTML5 game framework that offers WebGL and Canvas
Fast, user-friendly cross-platform custom launcher for Minecraft
Provides efficient allocation free async/await integration for Unity
UCI chess engine