FREE Eden- World Builder For IOS Was $0.99
FREE Carmageddon For IOS Was $0.99 Expired
Both have pretty good reviews :)
Carmageddon is the original freeform driving sensation, where pedestrians (and cows!) equal points, and your opponents are a bunch of crazies in a twisted mix of automotive killing machines. The game features anarchic drive-wherever-you-like gameplay and over-the-top surreal comedy violence. It’s the racing game where racing is for wimps.
Eden is a game that lets you do awesome things with blocks. The game engine enables crazy sandbox fun. Build, destroy and explore your way through endless worlds.
It makes me sad when minecraft clones try to pretend they're not minecraft and that they're a "totally new and imaginative game".
The description might as well just say "This game is minecraft but cheaper."