Oh yeah. Well, it depends on if you like puzzles. Wait, nevermind, it doesn't matter- I loved the game and I usually stay away from puzzlers. The 3d graphics, clear sound, and genius solutions all complement the cool gameplay. It's not like usual slider puzzles, it's completely 3d with some really crazy things to solve. It costs 5 bucks, so people who are looking for some kind of zombie FPS might not want it, but if you even SOMEWHAT might like a puzzle game, it's a must buy.
I really liked all 3 games but I didn't think any of them was special. But out of the three, I would choose Assassin's Creed 2. It definitely did not live up to what I expected, and nothing about it blew me away, but I still like the gameplay, and it'll last me a while.
I bought tham all, my answer is easy AVATAR: NO AC2: YES NFS: MAYBE Space Miner: Space Ore Bust ==> DEFINITLY YES (my curreny favor)
none of them really interest me, Avatar and AC2 are just those games which I'll play once and never go back to again. NFS maybe, but I don't have it yet