Endgame Singularity

Simulation game where you play as an AI trying to gain world domination. You start out hacking small computers and then developing further to take over bigger servers etc to gain more and more calculation power to develop further technologies and finally to take over the world.
The game does not have much graphics, its a simple world map and some GUIs, but is still interesting and has a nice atmosphere and soundtrack.
Very unusual and exotic game, definitely worth a try if you are into these kind of games.