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 was wandering the GH shop and found 2 different League of legends codes/card/rewards. a "League of Legends 10USD NA" one for 7699SG and one labeled "Riot Access Code $10 (US)" for 5599SG. Does anyone know if their the same thing? the "League of Legends 10 USD NA" one has much less of a description only stating its name again; while the Access code one states its a digital key and links to the how activate page. I did google it quickly and came up as about the same thing, has anyone bought either? and have they given you the proper reward(s)?