In a lot of ways DF is similar to the early days Minecraft. It was just "special". You can get lost in it for hours on end.
Girlfriend - "You want to go out tonight?"
Me - "Nah I'm good. I am just going to play Dwarf Fortress for 10 hours..."
Girlfriend - "Well I am going to go to Dim Sum Garden!"
Me "Iiee decisions, decisions!"