Castle GAFA 3D is Wolfenstein. Just not as you know it. Built by Jankenpopp and Zombectro (via Free Game Planet & Alpha Beta Gamer), at first glance it looks like the classic Wolfenstein 3D. Only...the game's food has been replaced with random computing and internet icons. And Hitler's gone. And there's...Facebook? And it boots from a fake "Windows 93" desktop that also opens a busted (and playable) version of Pokémon and an ASCII adaptation of Star Wars?
Yes, please. You can play it in your browser here.