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.
When i am looking for rewards, on my mobile app it shows that for example Steam $5 gift card is currently unavailable, but it says nothing while looking with browser. So does that mean you can still collect the reward from browser ?