One of the most speculated and original ideas of DBO. The idea of family lineage within the game was based on in game marriage. It is thought that the marriage system would be mandatory as it seemed that in order to continue playing the game, once your character died during the adult phase, you have to pass the adventure on to your child. It also suggested that aging would play a role in Character Progression. The lineage aspect seemed problematic and made no show during the beta testing phases. However it is still unknown whether or not the system will become a reality in DBO's full release.