I strongly recommend a tileset like this
Dwarf Fortress is one of the best games out there, it always has been, especially for anyone who enjoys randomly generated open worlds. These open worlds are truly massive, unlike anything you have ever seen before, and damn near anything can happen. Stories of Dwarf Fortress have populated the web throughout the games existence and they display why this game is fantastic. If you can get past the harsh learning curve, extremely dated controls/UI and very confusing graphics then you can find so much to enjoy about Dwarf Fortress. There are few other games that can create a story like this one that I saw on Reddit too. Anything can truly happen, whether it's mining too deep and awakening ancient evils, getting invaded by goblin armies, accidently flooding your fortress, watching your Dwarves go crazy and kill each other, having vampires infest your populace or wandering out in the world as a lone adventurer, Dwarf Fortress has so much to offer. If you have the time and the imagination this game can provide the rest.
Main Website: http://www.bay12games.com/dwarves/index.html
*If you do start playing Dwarf Fortress then this Wiki is your best friend.
-Written by Sean Cargle