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.
It says that you can earn soul gems by "talking on the forums", but i always talk on them so i ccan level up, i never got a single SG. Can someone help me?