Open source cross-platform multi-purpose game toolkit
Voxel game engine in C++ with OpenGL
A Native GOG and Epic Games Launcher for Linux, Windows and Mac
A free and open-source Touhou Project fangame
Solar2D Game Engine main repository (ex Corona SDK)
Games for tomorrow's programmers
Map Pixel Art Generator for Minecraft
High performance UI layout library in C
A isometric city builder in JavaScript
OpenSoldat is a unique 2D (side-view) multiplayer action game
Accuracy-focused XNA4 reimplementation for open platforms
The game engine for everyone
Satisfying monster shooter
Pixel-art map visualizer for Minecraft
Just another ComputerCraft fork
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
The Pokémon API
3D and 2D game engine written in Rust
An open source flight dynamics & control software library
A reimplementation of the minecraft server in rust
An open source implementation of the Ultima Online Classic Client
A modular Common Lisp game engine
Svelto ECS C# Entity Component System
A retro game engine for Python
HTML5 Phigros chart player/simulator