[medi8r]

So it could run Doom?

[repelsteeltje]

Yes: https://github.com/robertcprice/nCPU?tab=readme-ov-file#doom...

[medi8r]

Oh I forgot to Doom scroll.

[binsquare]

Can we run doom inside of doom yet?

[throawayonthe]

Yes: https://github.com/kgsws/doom-in-doom

[PowerElectronix]

What a time to be alive

[anthk]

Doom it's easy. Better the ZMachine with an interpreter based on DFrotz, or another port. Then a game can even run under a Game Boy.

For a similar case, check Eforth+Subleq. If this guy can emulate subleq CPU under a GPU (something like 5 lines under C for the implementation, the rest it's C headers and the file opening function), it can run Eforth and maybe Sokoban.