What is this?
This is Wolfenstein 3-D: Alt-Right Edition.
Use the arrow keys to move, X to punch, space bar to open doors and start the elevator. This probably won't work on smartphones/tablets without a keyboard. This is the first shareware level, so it will only take you a few minutes to play through.
You can play the actual, original 3 episodes of Wolfenstein 3D in a browser, too! It's freely available at 3d.wolfenstein.com
You can follow @icculus on Twitter. If you want to explain to me why Hitler was a cool dude: don't.
(this is intended to use Wolf3D as a form of parody, please don't sue us, Zenimax.)