Occasionally Dynastic Succession for Tribes (ODST)
Tribes can now have consecutive rulers from the same family. Your successor no longer has to be from a different family from you.
The only member of the ruling family that is eligible is the person next in line to be the clan chief.
If their total skills are >= all the other clan chiefs, then they will be the next ruler (like vanilla, martial counts x2 and charisma x1½).
Compatibility: everything I think
Note: the "Our Rulers" ledger still includes the person who would have been in charge normally. You’ll also get a popup telling you that person became ruler when a succession happens, but they are actually instantly kicked out.
Vercingetorix’s face from here: https://www.worldhistory.org/image/2399/vercingetorix/