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 achieved level 3 before (I can't transform into a frog even if I don't do the mission) but suddenly, if I don't do the mission, I'll become a frog. And the mission box is gone again. Please fix it