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There's also Dinomess that is put out by getgame.io, backed by Open Ledger. I'm not sure what stage it is at in the token sale, but I've been seeing promo material for it for ages. Haven't looked into how it works, just informing of other ideas in the blockchain/AR space.

Well, a dinosaur in the city is easier to find than a penny on the pavement. (lol)