Video games for engineers

I was just looking for suggestions of games that would be fun for an engineers mind. An example that I have played would be Little Big Planet. The level creation in the game was a great challenge for an engineer to make something amazing.

I'm not necessarily looking for a game just like LBP. I was just curious if anyone had any suggestions. Thanks!

Minecraft.

Well, there are those awful Astragon simulators for tree cutting, road building and demolition. Although I'm not sure you'd want to put yourself through that. Although, I have to admit, the footage of blowing up buildings in the demolition simulator I've seen looks pretty cool...