Greed is, well, it's pretty okay.
Greed Corp's deceptively simple mechanics are implemented really well -- the ways in which they balance and counteract each other can turn the tide of a match in an instant. Consequently, skillful play involves a chess-like ability to think many moves ahead, predicting wildly disparate branches of possibility.
Unfortunately, I don't have this skill. And the game's campaign requires it pretty quickly: before the end of its first-of-four series of faction-specific missions.
I know when I'm beat. And I'm comfortable admitting that this (again, well-made) game has simply gotten the better of me.
Progress: Finished uh... four campaign levels.