Have you guys seen Dwarven Fort? It's an ASCII game like Angband/Rogue/Moria. You build a fort into the mountain and manage a tribe of dwarves. It's very detailed and a lot of fun. I've spent about 20 hours on it so far.
Game here (http://www.bay12games.com/dwarves/)
Wiki here (http://dwarf.lendemaindeveille.com/index.php/Main_Page)