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.
If i like to buy for example game maker or some other program on steam i will have to purchase steam wallet first. So i recommend you to put some software on gamehag. i know its a gaming site but game maker softwares would be awesome. :D Thank you :D