There's also pg_doom that runs Doom as a Postgres extension https://github.com/DreamNik/pg_doom arguably less impressive because PG extensions can be normal(ish) C.

The previous trend was about trying to run DOOM on as many constrained devices as possible

now it has evolved to trying to prove turing-completeness on the least places you'd expect it to be.

"Programming languages differ not so much in what they make possible, but in what they make easy."

I once made a doom emulator with a bandsaw and a pile of toothpicks but unfortunately I had difficulties cross compiling to a dumpster fire of banana peels.

Do it in Neo4j now lmao