This game is an old working version of the newer version of the game which doesn't actually work. So play this one for now. Use wasd to move around, click and drag or use q and e or left and right arrow keys to look around, and press n and m to show and hide the map.
The code for making this 3d game mostly came from here: https://www.youtube.com/watch?v=M1c5TcdITVs