I don't think there is any without actualy using them and seeing if its duped.
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And how does that help to know if they are used if he doesnt redeem them? :)
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Are you sure? I thought it just said already owned.
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Like I thought, I tried a dupe key that I owned and it says: "Status: Fail/AlreadyPurchased | Items: [72889, Vendetta - Curse of Raven's Cry]"
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Steam first checks if the key is valid (not if it's used or not, just if it's a valid key) --> if not, it will say invalid key.
Then it checks if you own the game --> if you do, it will say that, and if you don't, it will check if the key has been used.
So no, there is no way to check if a key has been used without trying to activate it on an account that doesn't already own the game.
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Hi guys, i have a question, i have many keys but i'm not remember if they are used, exist one way to check if are used without use them?
Edit: on steam, of course
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