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.
My name in gamehag is TheMovingTarget, my name in War Thunder is TheMovingTarget1, because TheMovingTarget was already taken, and now I cant get points, I hope moderators will respond soon, it has been more than 24h
Edit: I used oficiall link from gamehag