I've enjoyed a lot playing Heretic again, maybe 20 years later last time I played it.

Heretic is an old first person shooter, you can buy it on Steam though. The gzdoom engine can be used to play it with enhanced graphics, maybe others Doom engine can run Heretic.

I can't get my microphone to work on my new hardware so I thought about using text from time to time instead of screaming into the microphone :)