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 am not sure if you added them because I am pretty new to site but maybe it would be good to add chest that can be used with potions, for example you activage potion that gives you 20% more chance to earn more valuable reward.????