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.
lately the sg became meta and i think it's dumb, u literally cant hold an angle against an sg even if u have an awp. Honestly idk why valve isnt fixing this