Problems with the interface? Those aren't so fun. That’s not to mention the variety of things that can go wrong within the game itself! Those things are called fun. It has a more serviceable interface than many others in the colony-building genre, but it can still be guilty of the more, ahem, opaque and byzantine choices of interface design that characterize games like Dwarf Fortress. Like Dwarf Fortress, RimWorld is most enjoyable as a sim that creates wild and memorable stories.