I don't quite get it. Etherium generalizes the bitcoin idea of transactions encoded in the blockchain, encoding "contracts" instead, which may be a monetary ex

I don't quite get it. Etherium generalizes the bitcoin idea of transactions encoded in the blockchain, encoding "contracts" instead, which may be a monetary exchange or any other kind of public agreement. But what is a "challenge market"? And how does this fit in with a dungeon crawler? And does the betting aspect just relate to the performance of players in the game?