IIRC, steam keys never expire. So if you're worried they expired, you shouldn't be. Though if the question isn't that, but whether you used them already or sent them to a friend and you're not sure what to do, I'd advise not starting a giveaway until you check.
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As you were told above, unless someone else redeemed them, they don't expire. I redeemed a half life key from a retail copy I bought at least 12 years ago.
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Well then post em here and see it as a forum giveaway ninja style^^
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It's not possible to check a key for validity. If you don't already have the game, trying it will consume it. If you do already have the game, it'll give an error message about you already having the game (and it'll say that even if the key is already used).
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I have a couple of steam keys. They are not from Indie bundles. Will these still work or could it be that they won't be valid anymore. I would like to give them away but i don't want to give them away and get a response from the winner saying that it doesn"t work anymore.
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