My boy and I have been enjoying split screen co-op on his farm, but now big sister want to join in. I can leave the game and hand the controller to big sister, but how do we create a new farmer for her?
From what I know the only requirement is it have an empty cabin for the players who are joining you. That mean there must be one cabin for you and one for your sister. Then you can select "Start Local Co-Op" from the in-game settings and you should be good to go.
If you haven't tried this out, for me it is worth it since a cabin only costs 100g.
And be sure to let me know if it worked or even if it didn't