There are Doom ports to everything under the sun, from FPS game on a regular PC isn't that impressive – but it is if you've barely turned it on. The latest Doom port allows you to run it directly from a PC BIOS firmware, making Doom more important than Windows.
Doom is one of the most famous all-time restaurant. And now, it's playable as part of a system BIOS.
Coreboot is an open-source BIOS system firmware, and update 4.17 is out today (via Toms Hardware). It s a load of new motherboards, a new bootloader, and, yes, Doom. s can create 'payloads' to add ROM code to Coreboot, including some basic games that load up in the linear frame-buffer – and now, someone's made Doom for it.
If you give it a go, expect it to be crash-heavy and only be playable through PS/2 keyboards, as well as having no sound, saves, and only basic graphics. Nevertheless, it's still Doom running on a system BIOS, so we can check that one off the list of "things that Doom still isn't playable on."

More unexpected things that Doom is playable on include: Oh, wait.
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