I was recommended this game by a friend this weekend and I'm shocked that I had never heard of it before. Auralux is a super addictive strategy game that I'd describe as a simplified version of the classic desktop RTS games (Warcraft 2 / 3, Age of Empires, etc.). The only resources are units that are produced by suns; the map spawns with various numbers of AI opponents controlling suns, and the goal of the game is to eliminate all opponents by taking over their suns (which happens by sending units to attack them). The game is surprisingly challenging, and it's hard to not obsess over. The game was made by an indie studio out of Gainesville, FL that mostly seems to do work-for-hire apps. Auralux is free to play with additional levels available for purchase.
Theseus