Take a look at the last 2 answers in the frequently-asked questions list to see why things don't behave how you'd expect them to. I think it worked better in Alpha 13 or 14--which is the last time I tested it out to create a family the way that you describe here. Sometimes the order in which you add the relationships can make a difference, but I couldn't find an order that worked the way you want it to.

I'll try to take a look at it.

I managed to get it, you make the kids brother and sister...then add one parent. then add marriage and make the other sibling the child of the spouse.

引用自 Bobbi Deniro：

I managed to get it, you make the kids brother and sister...then add one parent. then add marriage and make the other sibling the child of the spouse.

I did it the same way but it was still buggy. During the game it turned out that apart from the parents I added and which were my colonist there were some other, imaginary parents somwere out there :) Some of the siblings/children got mood lowered because "my father X died"... but your father is right here, next to you, eating a lavish meal! "Naah, man. I had a father and he died!"

Mod is absolutely perfect but this part isn't working flawlessly ;-)

The playthrough i did it in however, the first 3 or 4 wanderer joins events were all my leaders extended family...his mom, dad, uncle and a long lost brother i think it was or it was his wife's mother. It was hilarious