Castle of the Winds

Castle of the Winds (cotw) is an old Windows 3.x Roguelike Role-playing game (RPG) written by SaadaSoft and published by Epic MegaGames[?]. The graphics are sixteen-colour icons and there are 34 spells (30 that can be learned without hex editing), 90 types of monsters, 3 towns, 40 dungeon levels (randomly generated), and many item.

It has a Norse storyline, but it's basically just killing monsters (and buying/selling stuff to kill them with, or keep from getting killed.)

In 1998, the author Rick Saada[?] decided to make it public domain and released the registered version for free.