I was considering an Oxenfree/Splatoon graphic adventure game by Night School Studios as something fun. This could interest people that aren't so much Splatoon players as Splatoon fans, and the Splatoon world has enough lore that you could go deep. Not sure how to handle those voices though.
But then ... James said Rune Factory Stardew Valley/Xenoblade Chronicles X, and I could only think, "Please take all my money, take it now." Yes, yes, farming. Yes, yes, monsters and caves. Yes, yes, story delivery in tiny tiny endless doses. He missed the main point: dating. Let us all look deep into our hearts and admit that, yes, this is very important and Monolith Soft needs to deliver that.