Hey guys, I have been trying to figure out this game I played a lot, maybe 10-12 years ago. It was for the PC and it was a RTS type game. The user could make custom tank type things from the main menu and then use them in a skrimsh game. The game play started with a large mother ship type thing and you would have to be over this crystal stuff to gain some form of energy, and then you could build the tanks you ceated. you could chohose from treads that could go over rocks to normal tires that were faster and hover crafts that could go over water. Thanks for the help guys.