Play credits
Play credits are play money: free, on the same games with the same odds, and never withdrawable.
Play credits let you try every game with the same rules and the same odds as real coins. You can claim them on any game page or in the wallet.
They are not money. They cannot be withdrawn, exchanged or bought, and they earn no rakeback, experience or bonus wagering. Levels, missions and streaks pay their rewards in play credits.