Fun idea that's actually implemented well. As others have said (many times) the camera caused some issues. The game should either have a standard first-person controller with a locked mouse, or it should lock the camera straight ahead and leave the mouse free. Either would work. Only other large note is that I wish the assembly area wasn't so far to the right, having everything shifted more center would have been a bit nicer.
Despite the issues, I enjoyed the art and would love to see this more fleshed out.