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 saw that some people are earning 700 soul gems by playing game called throne kingdom at war, but i cant find it on my game list. Can you tell me why is that?