PC: Eufloria

Eufloria is a real-time strategy video game developed by indie developers Alex May, Rudolf Kremers and Brian Granger, and distributed by Valve Corporation (Steam) for the PC. The game was released on October 21, 2009. The game is a real-time strategy colonization game in which you must take control of an entire asteroid belt. You start as a single seedling that produces a tree on your starting asteroid. Your tree in turn produces new and unique seedlings which can be used to conquer other asteroids. However, the astro belt features up to ten AI opponents that provide fierce resistance and have their own drive for conquest. To defeat them you have to explore the strategic possibilities of the game.

Eufloria Game Trailer

Eventually you can build up very large armies of 400 or more seedlings and witness some epic battles. With the exception of the music and sounds (and the font,) almost all of the game content is generated procedurally.

Eufloria System Requirements:

Operating System: Microsoft Windows XP SP2; Windows Vista
Processor: 1 GHz
Memory: 512 MB RAM

Download demo : http://www.dyson-game.com/index.php