So, I have a number of Steam keys from old Humble Bundles, and I'm not sure if I've used them. I have them in my Steam library, but that doesn't mean much since I seem to always have duplicates. Is there a way I can check to see if the keys are still good without redeeming them?

11 years ago*

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you can check if they were valid at one time but not if theyve been used or not

11 years ago
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you can't, "product already owned" overrides "duplicate product code" so you won't know if its used already or not

11 years ago
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Deleted

This comment was deleted 6 years ago.

11 years ago
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Oh, well. Thanks anyways, guys. I figured as much, but I figured I should ask.

11 years ago
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Closed 11 years ago by kansattica.