About ten or twelve years ago I started playing roguelikes. I tried pretty much all of them.
Nethack, Alphaman, ToME and Adom were my favorites all through high school. I even made efforts to get two of my closest friends into them. One was a LotR buff, but she was not amused by ToME. The other wanted to write a paper about video games, and I suggested "the oldest game in continuous development, Nethack" as a topic. He did end up playing Nethack for a bit. Looking back, I never really got into the *bands (random dungeons are unsettling) but there were some good times on Mangband.