Hey, yes it's a fake 2D that's used in Wolfenstein 3D called "raycasting." It's an old technique that gives it the jank kind of not-3D look. As for the crashing, I think other have reported it on Linux? What OS are you on?
Windows
A raycaster, well cool. But I almost thought, that you did something with 2D graphics like Lands of Lore.
