Note: If you don’t know what Dwarf Fortress is, you owe it to yourself to learn a bit about it. It’s one of the most interesting and detailed games/simulations/sandboxes ever created.
I just spent a bit of time getting Dwarf Fortress installed on Ubuntu 16.04. I didn’t find much in the way of up-to-date instructions, so I’m writing down what works as of today (June 2016). If you’re wondering how to install Dwarf Fortress on Ubuntu 16.04, here’s what you’ll want to do: