Indeed. Currently playing Prodeus which is made by a couple of people using unity. Runs with about ~100 FPS whereas Doom Eternal hits about twice as that while looking much, much better.

In fact, there's a recent game called HOAT or something. Built by a single guy using the Quake engine. Had to return it because it was running with 30fps on my machine.

It's not using the Quake engine, or it wouldn't be running at 30 fps on current hardware. It's probably Unity or something more modern and bloated.

If the parent comment meant HROT, it’s using a custom engine written in Pascal.

Yeah, that's the one. Custom engine in Pascal. Now, where did I get this Quake engine idea from.

Thanks anyway