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 relly dont know whats better... The AWP with the one shot one kill(except the legs), or the ak with the 1 headshot one kill... let me know your opinoions