
Upon making a save available for co-op, you'll be given the option to choose how the game's economy changes when more players are added to the game. If you want your friends to join your farm, be sure to set up farmhand cabins with Robin! Choose co-op in the main menu to choose whether you want to host a farm (either a new farm or one of your existing farms) or join a friend's farm. Instead, you will be able to invite your friends online directly through whatever platform you're using.

The good news is there's no server set up required for multiplayer. How to Play Multiplayer in Stardew Valley The only exception to this is if you have one player on PC and the other on a Mac or a Linux-based OS. Moreover, the Co-Op mode is only available on PC, Mac, Nintendo Switch, PS4, and Xbox One.

Stardew Valley currently does not support cross-platform multiplayer, and it's unclear if or when this might change or if there are plans to include the feature in the future.
