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.
Man fortnite is safe for now but until then i now that it will be deleted and all you money will go to waste unless you bought battle pass only. People buy thousands of V bucks to show off their skins and its boring.