I would like to see a game that tests the gold standard approach. Basically a novel economic simulator. The hard part would be building a fun enough game around

I would like to see a game that tests the gold standard approach. Basically a novel economic simulator. The hard part would be building a fun enough game around it, I'm currently thinking some sort of sandbox game/MMORPG. Upon the creation of the game world a fund of X money would be set aside and correspond to all available in game items etc. For each paying player, new items would be added that correspond to a percentage of their fees. You could sell the items directly to the game bank for real money. No inflation so there's a limited number of items available and only if a new player signs up will new items be added. You could probably even test player characters retiring at a certain level. Say you grind up to level MAX and essentially solved the game...click retire and you get refunded all the money that your items etc. are worth (and start the grind again if you want)