This game would probably be easier to play if you replaced buttons with arrow keys. We figured out how to do this at summer school earlier this year, and Keying wrote some of it up: Maze Exploring Game. I just finished coding a rough preliminary PoC 3D voxel version of this game (with teams instead of a "stalker" and manual control only) . I will post code about it soon. In the meantime, why not try to make a snake game with a height map using Cuboid and Tube?
