Long before Wolfenstein 3D, John Carmack had made a little game called Catacomb. Well, that game turned out to be the perfect candidate to translate into three dimensions and the first Catacomb 3-D game was pretty much exactly that. Later Catacomb 3-D games were quite a bit better, with stronger controls, better graphics, more balanced gameplay (though still not quite as balanced as it could be), and time travel. ...yes... TIME TRAVEL.