A Minecraft Launcher which is multi-functional, cross-platform
Godot is a powerful cross-platform game engine
Xash3D FWGS engine
A cross-platform PSP emulator
A complete 3-D game development suite written in Java
The main repository for the Linux and Mac OS Bedrock edition Minecraft
Mangos ZERO is a server for World of Warcraft
Cross-platform 2D and 3D game engine with modular architecture
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
Cross-platform rhythm game for the keyboard
Stream switch games to your PC via USB or network
Custom launcher for modded minecraft written in Electron and Node.js
Voxel game-creation platform with easy modding and game creation
Cocos simplifies game creation and distribution with Cocos Creator
Cross-platform 2D game engine focused on ultimate productivity
An open source implementation of the Ultima Online Classic Client
Lightweight console for Minecraft chat and automated scripts
Recreation of the classic Grand Theft Auto III game executable
HTML5 Phigros chart player/simulator
Zig game engine & graphics toolkit
The ioquake3 community effort to continue supporting/developing id's
Cross-Platform C++ 2D/3D game engine