As far as I can remember I have the game on my PC. I think...
DOS/win95 or something
EDIT:I just checked it out. It's DOS but you still have to buy it, i think. There's a 7 level demo available on
www.dosgames.com. Created back sometime in the 1994. by Parallax software and published by Interplay. This is an FPS styled game where you control some kind of a robot.