I think the way most games are set up, the 'drops' part isn't compatible with self hosting - how do you verify someone accomplished the thing (completed the que

I think the way most games are set up, the 'drops' part isn't compatible with self hosting - how do you verify someone accomplished the thing (completed the quest, killed the boss, etc.) without cheating? If you don't verify, the economy gets flooded and value of everything approaches zero - even if it is on the blockchain. If the entity controlling the economy isn't controlling the servers the code is running on, is anti-cheat feasible? I think there could be a novel game economy pattern could emerge from this that could be compelling (where items are not tied to in-game accomplishments), but I'm skeptical blockchains can mesh with current popular game economies. The only alternative seems like it would require all of the game logic to be encoded on the blockchain, which would mean killing a monster would cost money (to encode the transaction) - would have to be an extremely compelling game to justify the expense.