It is a nice game, played it some years ago when it was still alpha, but I grew bored of it quite fast. I think it has been preceded by eyezmaze's growcube game, e.g. the idea of blockworlds isn't new, this game just caught the attention of the more mainstream casual gamers/internet users. Dwarffortress is way more extended to do build/explore stuff, but also more for the abstract fetishists .