Eufloria

Eufloria is an ambient real-time strategy game with abstract visuals. 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. Eventually you can build up very large armies and witness some epic battles.