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 me i prefer minecraft for mod-pack such as crazy craft but if roblox ill prefer all star tower defends
i like both tbh :D