[kup0]

Agree! Caves of Qud is quite fun. It can be difficult, so I often turn off permadeath just so I can wander around and enjoy the crazy worlds it has to offer on each run

Very neat what it has done with ASCII-style interface too

[d4mi3n]

I'd also recommend Cataclysm: Dark Days Ahead for a good post-apocalyptic/zombie themed rougelike.

https://github.com/CleverRaven/Cataclysm-DDA/