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
Good-looking and addictive OpenSource games
🐂 Bull-powered BitTorrent tracker engine
Europa Universalis 4 save game editor
Game Engine With ShitLang
Play Fighting Fantasy fan stories on this simple engine
Portable version of the incredible Godot Game Engine
Versatile mod management tool for game mods
A highly configurable board game engine.
Chess analysis, training and testing for Windows.
A WIP of a very cool game engine
Amateur 3D Game Engine
Lightweight Android emulator optimized for FPS games on low-end PCs
Odamex is a free, cross-platform, modern client-server Doom engine
Knema is a lightweight real-time performance & frame continuity engine
C++ lightweight cross-platform game engine
SDL based generic 2D game engine
0 A.D. is a free, open-source, cross-platform real-time strategy game.