You might really enjoy Caravaneer 2 (the original was a flash game, RIP, but the sequel requires no knowledge of the original). Whole game is traveling around a

You might really enjoy Caravaneer 2 (the original was a flash game, RIP, but the sequel requires no knowledge of the original). Whole game is traveling around a wasteland, hauling trade goods between towns that have their own industries, and thus varying supply and demand for various goods.