Lambda Wars Beta Lambda Wars is a free standalone multiplayer Source Engine modification set in the Half-Life 2 universe that brings the war between mankind and their brutal Combine overlords to a traditional real-time strategy (RTS) setting. is a free [...]

Lambda Wars (previously known as Half-Life 2: Wars) is the Half Life 2 Real Time Strategy mod. After six years of development, it was got a Steam release on December 5, 2014 as a standalone title.