Allow me a suggestion:
Brogue It is not very well known but I personally find that it finds the perfect balance between "hard-doable"
-It sticks with the ASCII graphics, but adds colour!
-Permadeth is there ofc. Save file gets deleted upon death but if that is a problem you can always backup it up and load. (Most people think this deafeats the purpose of the roguelike genre though.)
-Finite food resources and starvation mechanic stresses the player to keep moving deeper. No grinding.
-Playstyles determined on equipment availability and your enchantment decisions. No classes.
There are a lot of "quality of life" options, like auto explore, mouseover, basic explanation of mechanics, and %s for kill-get killed upon enemy encounter.
It's not overly complicated, if you are into classic roguelikes maybe you'll find it oversimplified. But for me and maybe some people new to the genre it can be just right. Don't get me wrong, if you show it to a random gaming person you still get a "wth is this?" response.
Also it is Free And Open Source!!!
Give it a try, it doesn't take much of a time investment either :)
https://sites.google.com/site/broguegame/
[url=https://en.wikipedia.org/wiki/Brogue_(video_game]https://en.wikipedia.org/wiki/Brogue_(video_game[/url])