Set of Python modules designed for writing video games
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Source code repository of the FreeOrion project
A generic, simple and fast implementation of Deepmind's AlphaZero
Real-time collision detection and multi-physics simulation for VR
BARS - a program for playing checkers
Lines a game written in Python two players through internet
KlayGE is a cross-platform open source game engine
Several mods for Civilization IV: Colonization
evolution for vegastrike SpaceSim/Combat/Trade game
Develop an emulated Darkfall Online Server.
Tactical, turn-based game engine, that uses OpenGL and WinAPI
Open source, moddable game engine for the "Polygon Love 2" game
Open Source Virtual World and MMOG Development Platform
A powerful cross-platform and open-source 3-D rendering engine.