Project Legacy

Your family and its tree, and an heir to carry your line on. A Bloodline house makes each death final; an Enduring one makes it cost years.

Project Legacy is an entry in the Built-in mods database, listed under On.

Several of these change core rules, so the guide pages describe the game with them on. 'Fixed by the room' means online everyone plays with the mod at its shipped settings, whatever they choose offline.