A free and open-source Touhou Project fangame
Emscripten: An LLVM-to-WebAssembly Compiler
Capstone disassembly/disassembler framework
swoole, easyswoole, swoole framework
Descent 3 by Outrage Entertainment
CGL (C Game Library) is a multipurpose library
Framework for creating human behaviour experiments in Unity
Open source file indexing & storage analytics powered by Elasticsearch
Doom-based AI research platform for reinforcement learning
Explore and dissect a complete brain model in VR
Orx: Data-Driven Game Engine
A powerful, feature-rich, random test data generator
A modern, cross-platform Quake game engine based on FitzQuake.
Arianne is an engine to develop multiplayer online games like Stendhal
ChessMD is a Qt-based chess game viewer with engine analysis
🐂 Bull-powered BitTorrent tracker engine
Europa Universalis 4 save game editor
Game Engine With ShitLang
A highly configurable board game engine.
Odamex is a free, cross-platform, modern client-server Doom engine
Knema is a lightweight real-time performance & frame continuity engine
0 A.D. is a free, open-source, cross-platform real-time strategy game.