Winstones: Mammoth Mayhem is the thrilling slot machine overflowing with bonus features.
There are up to 1024 paylines available in this game.
Theme of the Game
Winstones: Mammoth Mayhem is an awesome prehistoric-themed slot game with a Vegas twist!
Mammoth Wheel Bonus
Landing two Mammoth Bonus symbols on the second and fourth reels at the same time as a Wheel Bonus symbol landing on the third reel will trigger the Mammoth Wheel Bonus.
The wheel will spin to reveal a prize!
Click on the mammoth shown on-screen to stop the wheel.
Should the wheel land on one of the x2 segments, all prizes will double in value and the wheel is re-spun.
You can land on an x2 segment twice in a game, which can award up to 2000x your wager!
Mammoth Free Spins Bonus
Landing two Mammoth Bonus symbols on the second and fourth reels at the same time as a Fire Bonus symbol landing on the third reel will trigger the Mammoth Free Spins Bonus.
The stars shown on-screen are hiding free spins and win multiplier prizes.
Click on each star to find them!
Click on the stars to reveal the number of free spins and win multiplier awarded for this bonus round.
You can initially trigger up to 23 free spins, along with a x4 win multiplier.
You can win three more free spins if more Fire Bonus symbols land during the bonus.
Return to Player
Return to Player (RTP): 96.46%
The expected return is the amount we pay out to players relative to the amount of wagering on the game.
For example, if we take £100 of wagers we will, on average, pay out £96.46 of wins.