
You can now share Castle Story saves and seamlessly transfer the host (host migration). This allows everyone in your group to continue playing the same save even when the original host is offline, no dedicated servers required.
Since the Castle Story does not include built-in cloud save support, SaveSync also acts as a cloud save system, keeping your save backed up and synced across players.
That’s it!
https://store.steampowered.com/app/3832010/SaveSync_Coop_Save_Sharing_Made_Easy/