This better not awaken anything in me…

John Carmack, author of the Doom engine, is a long time Linux user and for a while the policy was to open source the idTech engines once they had moved on.

However, Doom was hugely popular on its own before this, and was actually more pivotal for making Windows a gaming platform (over DOS).

The reason it runs everywhere is a combination of it’s huge popularity, it’s (now) open source and it’s generally low system requirements.

Honestly, with Flatpak and immutable base systems this is a place Linux is really excelling now too. Being able to show a novice user a shared package manager with a search and a bunch of common apps and them actually install/remove them in a safe manner with a high likelihood they’ll work out of the box (since they come with all their deps in sync independent from distro) is kinda huge.