Finally! I uploaded a new project. Up and down or w and s move you forward and backwards respectively. Left and right to strafe left and right. A and d to turn. If the screen goes all white, restart the project or press r. Thing added in ONE DAY on 10/03/25: Depth perception is now here. Things now get darker the further away you are. The map now has a C you can go inside. Quality is now fixed. It used to be higher res the lower it was. It's now the other way around. Due to this, the range is now 1-15 instead of 3-15.
I made this by following a tutorial I have long since forgotten everything about. Basically everything else is my work.