You guys probably know that Paradox just published Crusader Kings 3

There used to be a Birthright MOD for CK2 though the development stopped on account of a hard coded error that could not be resolved.

https://www.moddb.com/mods/birthrigh...ragons-setting

The Forgotten Realms mod is still being developed, but no Birthright, sadly....

https://www.moddb.com/mods/faerun-fo...realms-for-ck2

I'm hoping someone might create the mod for the new game which seems to be much more modder friendly.