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 had this proposal that in order to make magic bank more attractive, we could reward them with some Soul Gems; as a welcome bonus This cost could be borne by the magic bank owner or the gamehag team or preferrably both