Open source clone of the Age of Empires II engine
Arianne is an engine to develop multiplayer online games like Stendhal
Dune II strategy and city building on Arrakis
A free 3d game for PC that does not limit the player. Fight,Build,Gain
Java RTS framework
Cross-platform real-time strategy game (3D)
A suite of tools to make operating a Empire server easier
An approach where computer solves problems like a human brain does;
oGame-like browser space realtime strategy game based on xNova
Cross platform 2D game creation framework with Python bindings
Continued version of EVOlution RTS,