Bad Durruck, you have offically been removed from the geek list.
It is from the geek game nethack, a pure ascii game. Been around for YEARS. I have even seen it ported to a graphical format lately. But still the best is the ascii one.
Yes like was said before this was one of those ascii dungeon crawl games. There were a ton of them back when Unix systems with pure text terminals/shells were all you had graphics wise. Ahh yes pure text.... the joy that it was.... that is until graphics made it better (for the most part).
Still though I have a soft spot in my heart for those old time games I used to play yester-year.... man I feel old all of a sudden.