https://vrfun18.com/reviews/vrfun18-compound-assessment-doom-without-grief/
(VRfun18) Compound Assessment-- Doom Without Grief
Apr 23, 2023 - - (VRfun18) Compound Assessment- Doom Without Grief
doom withoutcompoundgrief
https://www.pcgamesn.com/doom/bios-port
You can now play Doom without even loading your PC
Jun 6, 2022 - CoreDoom is a Doom port to the Coreboot system firmware, which means that it's now possible to play Doom directly from your startup BIOS without DOS or Windows
doom withoutplayevenloadingpc