The Marriage Ministry
Inspired by a forum that I used to write in about a decade ago.
Slightly futuristic / Utopian distopia
The institution of marriage as we know it - a union by two willing, loving partner - is gone. The government has decided to take the complete monopoly over marriage and divorce licenses. It preaches a return home for women, to take care of their children. From now on, from the age of 18, young adults would receive a marriage license that would tell them where to go to get married, and to whom. It can be a total stranger, it can be the person next door. They can be older, or younger, but always the assigned partners are of age to have a child. It is only once past their prime that people can finally choose who to spend the rest of their life with.
It would require a GM to play match-maker, and for the player to either set up their own couple ahead of time, or to accept that they may be paired with anyone else in the game unless they mention not wanting to write with someone in particular.