Play games
Choose the game that interests you and play itfor free.
Complete the quests
Every game has some quests for which you will receive Soul Gems.
Receive rewards
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
Z6L6Y-ZC4GQ-9#WBQ ;
Just replace the # with the missing letter.
Another one Complimentary reviewer package containing one of the games listed in my previous similar thread here on this group.
I'll leave the thread opened for some time if you'd like to reply that you take the key. Many thanks to the group owner and have a nice day! :)