id Software’s iconic 1993 first-person shooter game Doom was the game to play on your 486 (or fast 386) and was for many their first introduction to immersive 3D environments in gaming. Its eventual release as open-source gave it a new life, and now it’s a rite of passage for newly-reverse-engineered devices: Will it run Doom?

One type of platform that never ran Doom though was the classic arcade cabinet with its portrait-aligned screen. This is something [Matt Phillips] has addressed with Toom, a PC Doom port that — finally — runs on a portrait screen.

To enter the world of a UAC space marine in glorious portrait mode, simply take an installation of Doom 1.9 for DOS, and copy the Toom files from the GitHub repository over the top of it. The minimum spec is a 486 so period hardware will be fine, all you’ll need is a monitor that can be tipped on its side.

Doom consumed far too many hours for gamers of a certain age, and while it may look quaint to modern eyes it can’t be overstated what a giant step it was compared to what had gone before. If any of you install Toom and give it a go, prepare to see its monsters when you close your eyes.

We’ve shown you Doom on all sorts of devices over the years, perhaps the most intriguing is a no-software version in FPGA hardware.