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 wrote a perfectly good article earlier and it was rejected as spam. I tried to write it again and resubmit it, but it still got rejected as spam. Why?