Redeeming a Dying Light 2 key is really simple, just follow these steps: 

1. Go to https://techlandgg.com/redeem 
2. Log in to your account and enter the received code.
3. Link your techlandgg.com account to your Steam, PSN, or Xbox Live account.
4. Your DL2 reward can be found in the item stash once you complete the Prologue.    

Note: If you don't link your accounts, the content won't appear in-game. 

The key is not working

If you have activated the key according to the guide but the code appears not to work, please check what type of error message you receive and depending on it follow the appropriate instructions: 

• My key is Duplicated / Already used
• My key is Invalid
• My key is region locked / can't be activated in my country
• My key activated a different product
• My key did not activate all of the content