[profmonocle]

> Allowing some cryptocurrency-billionaire to jump into any game they like with the best possible guns and armour doesn't sound any fun at all.

If the game just trusts any NFT in the right format to be an item, you wouldn't even need to be a crypto billionaire. Minting an NFT costs less than $100 worth of Ethereum according to a quick Google search. Lots of random gamers would pay that much to mint a set of armor that grants + a million percent to damage or whatever.

The only workaround I can see to people minting insanely overpowered NFT items is to only trust NFTs minted by a whitelist of trusted game developers, so you have to actually get the item in a trusted game. But, of course, that completely defeats the purpose of using blockchain. It might as well be a normal API with a database. In fact that would be much more efficient because of the very high costs of publishing data to a public blockchain.