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.
Obviously it would be alive when it has a big corporation behind it that constantly brings updates to it, even if they may not be in the best interests of the people