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.
this is why its hard being poor cuz when ur about to buy ps4 then a new one comes out and it will be more expensive. cuz im poor im late in this kind of things