Dungeon Realm by Britt Froemel (1986 / 1987) is an RPG type game. You travel through perilous dungeon in search of the Arkenstone of the Zernian empire.  The Arkenstone has been stolen by a dragon and your quest is to recover it. The fate of all Zernia depends on you!

Katabatia v1.1 (2021 by malcontent) - So I've never played a rogue-like rpg before, but I really like games done in PETSCII graphics, so I had to give this one a try, and am I glad I did.  The soundtrack is very cool, and the gameplay is fun! 

Here's a link to the forum thread over at Lemon64 where I found out about this.