Tago Mago, an album by the German band Can (sung in English and released in 1971), resembles Dwarf Fortress in many ways. It can be difficult to get into, it's undergound and very influential despite not being very well known among the general public. It's also very critically acclaimed (it has a 100 in Metacritic). I wouldn't also recommend it to anyone who's just getting interested in music just as I wouldn't recommend DF to anyone just getting interested in gaming.
The genre is supposed to be Krautrock but that actually doesn't say what it is. Can sounds nothing like Tangerine Dream, Kraftwerk or other Krautrock bands. In fact, Can doesn't sound like anything other than itself. It's not metal or rock or funk or jazz or soul or electro. It's like a mixture of all, very experimental and avant-garde. You've heard Can's influence in everything, from Radiohead to Daft Punk. There are electronic effects, great singing by the lead vocalist Damo Suzuki, awesome drumwork and I can go on. The lyrics are supposed to be in English, but I often can't even understand what the lead vocalist is murmuring.
Like DF, Tago Mago has a eccentric sense of humour. The track 'Peking O' has Damo screaming out gibberish for 5 minutes. The hardest track to get is the 17 minute "Aumg" which is a frightening collage of noises. The star track is "Halleluhwah", with a brilliant bassline and great drums.
I highly suggest you listen to Tago Mago at least once, if you're interest in some very good (if difficult) music or want to try something new other than pop.