it's the better video game IMO. Even after the steam release of DF, Rimworld is a lot more approachable and has more player direction (including multiple end goals). Dwarf fortress isn't trying to compete as a video game, though, it's doing its own thing as a dwarf sim that you just so happen to be able to play. I've incidentally learned so much about metallurgy because of needing to look up what black bronze is and what I need to fit my dwarves in some cool armor