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.
So I use my girlfriends iphone to play ios exclusive games but i have an android, as im not a big apple fan, am I able to start and complete an offer off of her phone?