The developer feels players will be "really and surprised" with the new content.
Up to four players can play together on PC (though other platforms it might be limited to two).
What's behind the door?
It will also be free, like previous updates.
He warns you not to get too excited about it, though.
That's a lot of farming.
Android and iOS players can expect the update in January 2020.
ConcernedApe follows up last week's massive patch with some improvements.
Heaps of new items, post-game content and more arrive in this massive new patch.
It adds a "14-heart event" for after marriage and a "pretty big variety of new things."
The "Everything" update will add numerous quality of life features to the game.
Update 1.4 will also add a new farm called Four Corners that's meant for multiplayer.
Nintendo reveals the cream of the indie crop on the Switch.
Now you can play Stardew Valley on the go! Again!
Version 1.3.333 also contains fixes for visual glitches in multiplayer.
"It takes place in the same universe as Stardew Valley," says Barone.
Switch players can work together and live on the same farm, as well as get married.
Eric "ConcernedApe" Barone will self-publish the game on Xbox One, PS4, PlayStation Vita, and PC.
It's currently available for $7.99 with no in-app purchases or ads.
The iOS version of the game will be launching later this month, in fact.