Real Time Strategy game engine supporting early Westwood classics
Endless Sky is a sandbox-style space exploration game
RTS game with the theme of Strategy by Design
Utilities to make running a MegaMek server easier
Seven Kingdoms: Ancient Adversaries
A 2D Real Time Strategy space combat game.
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Arianne is an engine to develop multiplayer online games like Stendhal
Europa Universalis 4 save game editor
Cross-platform, GPL reimplementation of the classic : Syndicate
Open source FPS/RTS Game
Real-time Strategy
Cross-platform real-time strategy game (3D)
A free 3d game for PC that does not limit the player. Fight,Build,Gain
A simple gui game that plays the game bagels with users.
Online War system for IL-2 Sturmovik and Iron Front in ArmA 2
Open source revival of the game Transarctica / Arctic Baron
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
RTSish Game Engine
Open RealStrategyGameLibrary (Engine)