Open source clone of the Age of Empires II engine
Cross-platform, GPL reimplementation of the classic : Syndicate
RTS game with the theme of Strategy by Design
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Cross-platform real-time strategy game (3D)
An enhanced version of 7K:AA (Seven Kingdoms: Ancient Adversaries).
A simple gui game that plays the game bagels with users.
Open source revival of the game Transarctica / Arctic Baron
An experimental strategy game made out of basic UI elements
Cross platform 2D game creation framework with Python bindings
4x Strategy. Star Control Universe.