Hi Dev, just asking if you will add an option for polygamy by tweaking it before playing the game ( tweaking it during the run would make the story a bit inconsistence) or will you keep it strictly monogamous? If so, are there any mods that allow multiple marriage with side character?

SFCRevamp has a mod that allows multiple marrages. Only the most recent spouse get the spouse trait though.

I hope so, along with at least one spouse sharing your bed. SFP let you have four other people in your bed if I remember right when it was fully upgraded.