Which is exactly what this chap has done. Pitched as an interactive Doom adventure, it's an in-browser flash game that uses the Doom setting for an adventure game of the old school variety.

Fan remake of Oblivion as a DOOM clone captures classic charm. While gamers can't play yet, the creator may make a playable level for others in the future. A talented gamer online has created ...

The role of JavaScript in this Doom clone is reduced to gluing the chunks of SQL together and handling sprite Z-buffer checks as well as keyboard input. The result is a glorious ASCII-based game ...