Survarium key

none of them works they are all invalid

Got - 15EF270504F57AB7B708, Thankies \o
C1CEB0DF61197356B81C - This promo code has expired

Judging by the previous key I've had activated on their site (probably the "subscribe for a chance of getting to pre-alfa" bonus as I have never ever received any invitation to play), I'm waiting almost 5 years for this game...

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To redeem your key, just follow these simple steps:
Note: If you wish to play Survarium via Steam you must enter the code on the game's website using the Steam browser.

Go to the Survarium website and login to or create your account
Head into 'My Account'
Then click on 'Add promo code'
Then 'Apply code' once you have entered it
The code may not be awarded immediately - it can take from five to 30 minutes
The expiry date is January 1, 2018.

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I am actually playing survarium from time to time so what are those codes?