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 purchased a csgo skin. It went through as usual. I got the notification telling me that I got it, but as soon as I went into my trades there was nothing. I have steam guard on. What do I do?