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.
Unfortunately, this game is a bit annoying. You are bombarded by notification after notification upon launching the game. Also, when trying to play the game, you are continuously forced to play other mini-games. Other than that, the game is entertaining.