Okay, I gotta call it out. Minecraft is not like Dwarf Fortress. Sorry.
Minecraft is about one guy who digs and builds. Thats about all they have in common. I hate to oversimplify, but that is what the game is. Dwarf Fortress is about a bunch of dwarfs who dig and build a society from the ground up. Again, we have digging, but its still not the same.
However, they are both great, great examples of what a developer can do. Minecraft is an excellent way to get those creative juices flowing, to just grab a pick and build something. Dwarf Fortress is similar, in that you are creating not only a society of dwarves, but an entire mine with a history all its own. They are both incredible.
But.. Minecraft like Dwarf Fortress? Thats a bit of a stretch.