A strategy game with a high fantasy theme
A free 3D game engine to create games and realtimes scenes for Windows
Cross-platform real-time strategy game (3D)
Heros of Jin Yong 3D Remastered
2D Open Source MMORPG
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Turn based Civ-like strategy game
Single-/multi-player card game Mau Mau (similar to UNO®)
Open-source first-person RPG with procedurally generated elements
A complete 2D Game Engine with built in drag and drop editor