Do you think CA would be willing to do this? https://www.gog.com/connect Basically you connect your Steam account to your GOG account, and if a game you have on Steam is elegible, then you can get the GOG version for free. So perhaps maybe CA and Chucklefish can do this for Stardew Valley?
Well I would like to know if it already was available on Gog Connect. So.. did I already miss that offer or .. it s never on gog connect until now?