well, dwarf fortress was for most of that time a freely available game with no DRM and sustained by donations, so it's hard to see how copyright was really bene

well, dwarf fortress was for most of that time a freely available game with no DRM and sustained by donations, so it's hard to see how copyright was really benefitting them much. If as mentioned new updates would get a new copyright (and only older versions would lose it), I don't really see what incentive they would have to renew it much at all.