There's also pg_doom that runs Doom as a Postgres extension https://github.com/DreamNik/pg_doom https://github.com/DreamNik/pg_doom arguably less impressive bec

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