Sissi: Die Bohnenkaiserin adds human relationships to the beaniverse! This is a standalone game, based heavily on Bohnanza. The differences:
The standard 6, 8, 10, 12, 14, 16, 18 beans have all had their frequencies reduced, and are referred to as Captain Beans, and there are no 20. Thus there are:
4 Garden Beans (instead of 6)
6 Red Beans (instead of 8)
8 Black-Eyed Beans (instead of 10)
10 Soy Beans (instead of 12)
12 Barf Beans (instead of 14)
14 Sow Beans (instead of 16)
16 Fire Beans (instead of 18)
There are a whopping 50 Sissi Beans.
The reason there are so many Sissi Beans (Sissi:Captain = 50:70) is because you want to alternate Captain, Sissi, Captain, Sissi… (or vice versa) in your fields.
After all the normal phases in your turn, there's a Sissi Action phase, in which fields with two consecutive beans of the same type must be harvested.
See Sissi! rules in English or Sissi! Die Bohnenkaiserin Spielregeln DE (German rules) for more details.