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.
34GNE-EBEJV-A#Q74 ;
Just replace # with the missing letter.
The reviews are mostly negative, but at least this game gives +1 to your Steam Library and it has trading cards :) Sharing one spare key with you. Good luck!