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.
Unfortunately, this game is a bit annoying. You are bombarded by notification after notification upon launching the game. Also, when trying to play the game, you are continuously forced to play other mini-games. Other than that, the game is entertaining.
Don't expect Gamehag to accept your quest when you hit level 800. I downloaded the game via their link in the app and reached level 800 and Gamehag rejected my quest stating I didn't register a new account in the game. It was the first time I played the game when I downloaded it through Gamehag's link and I set up an account in-game as far as I needed to so I could play the game. Furthermore, gamehag has absolutely no instructions on doing this in that game, so I have no clue what I did wrong and Gamehag doesn't care. This is really nothing more than a scam.
Does anyone have a clue why Slotomania isn't available in the US through gamehag? That's grounds for uninstalling.