Apart from being one of the classic FPS of all time, Doom has also been ported to tons of platforms. Here's a complete list of all the platforms Doom (the original game) has been ported to, as of the time of writing this node. They're divided into official ports (developed and commercially/freely released by iD or other companies) and unofficial ports (created by amateurs for other platforms/environments). If there are any missing from this list, msg me and I'll add them.
Official Releases:
Unofficial Releases/Source Ports:
Update: gray mocker has recently informed me that his uncle was, in fact, assigned to work on a port of Doom (which was never actually finished) to the ill-fated WebTV platform and had played a build of the game on a prototype at his uncle's house. Thanks for that bit of Doom trivia, mate.