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.
This game can be really good if it is not fully pay to win and if you don´t pay huge amount of money (amazing how can someone pay for it that much) you can´t get far too much.So it´s the worst p2w game i ever seen.