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.
They are really op and have a good aim but they mostly uses AUG Or SG552 which means i can say it's easy to use tho. They usually grind with those weapons too. Also some of the players are weebs with hentai profile pictures(***)..