RPG Maker 2000/2003 and EasyRPG games interpreter
An open source re-implementation of RollerCoaster Tycoon 2
Doom-based AI research platform for reinforcement learning
Voxel game-creation platform with easy modding and game creation
A game of dungeon exploration, combat and magic
Multi Theft Auto is a game engine
Widelands is a free, open source real-time strategy game
Free and open source real-time strategy game
Source code repository of the FreeOrion project
3D game engine with lua scripting
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
Multiplatform MIDI File Player for Linux, Windows, and macOS
RTS game with the theme of Strategy by Design
A strategy game with a high fantasy theme
FlightGear Flight Simulator: free open-source multiplatform flight sim
A free transportation simulator game
Action RPG that's easy to mod
0 A.D. is a free, open-source, cross-platform real-time strategy game.
A 2D multiplayer space shooter game
Open source FPS/RTS Game
An enhanced version of 7K:AA (Seven Kingdoms: Ancient Adversaries).
computer opponent for the board game Blokus