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.
Soo... Verification failed for me about a month ago making a Gajin account. You could've just let us send a photo of Gajin sending us a verification email. Instead, tens of hundreds of other users and I get locked out in over 8000K of soul gems, an entire event, and 4 chests. This is a "bit" overkill... don't you think?