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There is nothing wrong with the core technology of using a blockchain token as a validator in a game.
True, but the problem is that there is no point to do it. Just use a database. Games are already centralized. Why bother?
Unless the big gaming companies come together and develop a system that would allow you, for example, to get skins in rainbow six siege and use them in battlefield or call of duty (which is almost impossible to build anyways because of different engines, model formats etc), there is absolutely no reason to have any decentralised crypto/nft bullshit involved.
More or less there are 2 clear use-cases: Foss trade system not centrally controlled by the game, and cross-game usage of a token. Neither is reliably implemented by a single company or centralized db.