I want to make games with crypto but I don't want to do betting or weird tokenomics. Is there any room for that?

I've been brewing an idea for a little while to make an old school game boy style game that is zk provable with the ability to submit a proof onchain to claim collectables. No weird betting/markets, just use the game to collect a kind of trading card or whatever, no obligation to participate onchain either, you could just pay the game if you want

Interested in ZK, FHE, PUFs, hardware, system design, ai safety, and smart contact security.

Play* the game. 
But I guess you do pay the game with your time and in exchange you get fun :p