NetHack

The Good
this game has it all !!! from items, to npc's, monsters, mazes, and you even get to have you own pet !!!!

The Bad
1. It's hard as hell, i mean, almost everything and anything can and will kill you 2. gameplay isn't very good. most of the cool commands are hidden within the docs of the game 3. text graphics is so yesterday..... 4. the turn-based mechanism of the game allows the computer to "cheat" 5. it has too many options

The Bottom Line
it's an RPG, one of the best, and it's free !!!! something like ultima, but with more options, better gameplay, and less graphics!