Any Single Player game DoTA-esque?

Well, I've been looking into DoTA, and I like the concept. However I was wondreing if there game with the same concept for single players, since I keep hearing how people are like in the DoTA thread. Doesn't have to be a free game, just needs to be for PC. So far I've heard the game called DemiGod is like that, so looking into that possilbility.

And something a bit off topic:

Anyone have Civilization V? I'm thinking of buying it real soon because it seems cool. Heard great reviews and I don't mind the turn based style.