Wolfenstein 1-D is a Flash game and "demake" of id Software's seminal first-person shooter from 1992,
Wolfenstein 3D, "the game that changed everything, converted to a one-pixel line", where the world is one-dimensional. Somebody made this, folks. Stranger yet is that there is some enjoyability of playing it once before forgetting it, and it received so much press coverage that it actually meets
Wikipedia's notability guidelines for inclusion as
an article on the website.