I tried Mindrover a few years ago. I don't remember it well; I probably had fun for a couple of minutes.
There is another similar but better game, whose name I unfortunately don't remember, involving programming robots to get ore, kill baddies, etc. on different planets. You can (must) also control some guy in a space suit so it's also an action game. I'll try to find the name...
Edit: found it! it's Colobot (
http://www.colobot.com/ )
