Dwarf Fortress is a single-player fantasy game by Bay 12 Games. You can control a dwarven outpost or an adventurer in a randomly generated, persistent world.
This is unofficial snap packaging, which redistributes the original binaries without modification.
Upstream: http://www.bay12games.com/dwarves/
This packaging is no longer maintained. See https://github.com/ultraviolet-1986/df for an updated version.