Winstones: Mammoth Mayhem is the thrilling slot machine overflowing with bonus features.
The bet sizes available in Winstones: Mammoth Mayhem range from 20p to £200.
There are up to 1024 paylines available in this game.
Mammoth Wheel Bonus
Landing two Mammoth Bonus symbols on reels two and four, along with a Wheel Bonus symbol on reel three triggers the Mammoth Wheel Bonus.
Click on the mammoth to stop the wheel and find out which prize you are awarded.
Should the wheel land on one of the x2 segments, all prizes on the wheel are doubled and the wheel is re-spun.
This can happen twice, up to a maximum of 2,000x your total bet.
Mammoth Free Spins Bonus
Land two Mammoth Bonus symbols on reels two and four, along with a Fire Bonus symbol on reel three to trigger the Mammoth Free Spins Bonus.
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.
Landing any Fire Bonus symbols on the reels during this bonus round can award up to three additional free spins.
There's also a chance that you can increase your win multiplier.
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.