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 used to play League Of Legends a lot, but it just doens't have my interest anymore, and I don't know what to do to make it fun again. Have any of you had the same problem and do you have a solution for it? I still "like" the game but It's not that fun anymore. (for me)