Warzone 2100 v3.1.1 Free Full Game

Command the forces of 'The Project' in a battle to rebuild the world after mankind has almost been destroyed by nuclear missiles
Warzone 2100 is a 3D real-time strategy game originally developed by Pumpkin Studios and published by Eidos Interactive in 1999. It was released as open source in 2004, for the community to continue working on it.
In Warzone 2100, you command the forces of The Project in a battle to rebuild the world after mankind has almost been destroyed by nuclear missiles. The game offers campaign, multi-player, and single-player skirmish modes. An extensive tech tree with over 400 different technologies, combined with the unit design system, allows for a wide variety of possible units and tactics.