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.
I just smurfing but they always says hack, I don't care but they swearing to me. I can't afford and they don't believe me cause of that they are starting to cheating :(