RTS game with the theme of Strategy by Design
Seven Kingdoms: Ancient Adversaries
Cross-platform, GPL reimplementation of the classic : Syndicate
A free 3d game for PC that does not limit the player. Fight,Build,Gain
Cross-platform real-time strategy game (3D)
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
WeComeInPeace is a simple RTS game that aims towards multiplayer
Fast and robust map analyser for Brood War.
3D Space Drone Battle Simulator
Map render tool for 2d RTS games
Open-source 3D RTS game inspired by the Dungeon Keeper series
A simple turn-based artillery game and also a real-time strategy game.
A mobile tower 3D tower defense/defend the flag game
A free engine for C&C Tiberian Dawn