A Minecraft Launcher which is multi-functional, cross-platform
Godot is a powerful cross-platform game engine
Xash3D FWGS engine
A complete 3-D game development suite written in Java
A cross-platform PSP emulator
The main repository for the Linux and Mac OS Bedrock edition Minecraft
Mangos ZERO is a server for World of Warcraft
Open source cross-platform multi-purpose game toolkit
Cross-platform rhythm game for the keyboard
Open Source MMORPG Framework
Desktop/Android/HTML5/iOS Java game development framework
One framework for creating powerful cross-platform games
Free and open source real-time strategy game
Custom launcher for modded minecraft written in Electron and Node.js
Stream switch games to your PC via USB or network
Cocos simplifies game creation and distribution with Cocos Creator
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Voxel game-creation platform with easy modding and game creation
An open source implementation of the Ultima Online Classic Client
Recreation of the classic Grand Theft Auto III game executable
HTML5 Phigros chart player/simulator
Cross-platform 2D and 3D game engine with modular architecture
The ioquake3 community effort to continue supporting/developing id's
Open-source Android/Desktop remake of Civ V
Zig game engine & graphics toolkit