Great game, I love the idea of manipulating the objects in the game space using a command prompt! I could definitely see the potential for some great levels if developed further. Some cosmetic commands wouldn't hurt either to give the player a sandbox feel, like changing the color of the objects. A far clipping plane would be nice too since I could tell my FPS dipped a bit when looking across the map lengthwise.
Overall, very unique idea, great variety of 3D models, and nice atmospheric background music. Very well done!
P.S. I couldn't hit the lever to drop the bridge, so I just jumped across the pit ;)