I’ve always wanted something that takes an RPG (JRPG a la Final Fantasy or Western RPG a la Fallout) where the economy is real and active. Like, if I go out and grind to get 9999 of some valuable resource and just dump it on some poor merchant in some tiny town and sell them all and buy all other resources, that should have a noticeable impact on the local economy. Or that there are trade routes between towns Town A specializes in weapons while Town B specializes in healing items. Then you can support them by facilitating trade between towns or you could “be evil” and create larger imbalances in market demand. I don’t know, it’s just a super nerdy idea.