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.
for the one that likes this anime and now this in these games, I liked a lot naruto a while then bored it, but I still think it has been a good creation for those who like the ninja world.