The title says it all. Player economy with auction house and player to player trading. I play the Legends games and Order & Chaos. I have Celtic Heroes and the Midgard game. Also play space games like Infinite black and Pocket Galaxy. Is there anything else like them that everyone's playing and I'm missing? Thanks in advance.
Check out Albion Online. It's still being developed, but this looks like it'll deliver the player driven economy pretty well. http://forums.toucharcade.com/showthread.php?t=180056