Help finding an old text based game

There was a post on lemmy a couple of weeks ago about an old, hard, I think text based game. I wanted to look it up but forgot the name and I can't seem to find it anymore. Any help with this would be really appreciated.

Edit: I don't think it's on the list of text based games on Wikipedia. I've added a comment with some meagre details I can remember

The post referred to it being something they always went back to and it being a lightweight game (maybe from the 90s)

I found it!!! Nethack is what I was looking for. Not text based but ascii. Sorry for the super vague question. It was mentioned in passing on some forum talking about ascii/text-based games.

The post I was referring to: https://lemmy.world/post/1570921