Play games
Choose the game that interests you and play itfor free.
Complete the tasks
Every game has some tasks 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 want to get a $10 steam wallet code, but it says the reward is currently unavailable. There is an "ask for activation" button, but nothing happened. What should I do?