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Seriously heavy wins!

We've got a great lineup for you. All our heaviest rocking slots together in a giant festival of cash and free spins. You won't want to miss a single day.



Win high value spins and cash!

Rock with Twisted Sister and win bigger. We've hidden €5,000 and a hoard of heavy high-value free spins worth more than usual.



22-23.6.2020 Annihilator, Black Mamba, House Of Doom, Demon
24-25.6.2020 Jimi Hendrix, Motörhead
26-27.6.2020 Sabaton
28-29.6.2020 Ozzy Osbourne
30.6-1.7.2020 Testament
2-3.7.2020 Twisted Sister
4-5.7.2020 Guns N' Roses

How to win

  • Play Twisted Sister to win as many mystery prizes as you can. The prizes are completely random and can be won at any time.

Click on the game to play!


Mystery prizes


Grand €500
Major Spins 20 free spins
Worth €2 each
Minor Spins 20 free spins Worth €1 each
Mini Spins 20 free spins Worth €0.20 each

Grand winners will receive their prize on Monday 6 July.


The free spins Major Spins, Minor Spins and Mini Spins are paid out directly and they will be valid until 23:59 on 10 July 2020. You may need to click on the X in the lower right corner to reload the game with your free spins.


Free spins can be won throughout the offer. There are a set number of Grand prizes and therefore they will no longer be visible in the game once they have all been won.


Terms & Conditions

  • The offer starts at 00:01 on 2 July 2020 and ends at 23:59 on 3 July 2020.
  • The Mystery Prize can be won on any spin. Winning is totally random and independent of the player's actions. You will be notified through a pop-up message in the game if you win.
  • Play for at least €0.20 real money per round to participate in the offer.
  • Mystery prizes can be won using normal rounds or free spins from the offer.
  • Grand winners will receive their prize on Monday 6 July.
  • Your free spins will be paid out immediately in Twisted Sister and they will be valid until 23:59 on 10 July 2020.
  • If you started playing your free spins on your desktop, they will only be available on desktop. Similarly, free spins started on mobile will only be available on mobile.
  • The Major Spins are worth €2.
  • The Minor Spins are worth €1.
  • The Mini Spins are worth €0,20.
  • Free spins can be won throughout the offer. There are a set number of Grand prizes and therefore they will no longer be visible in the game once they have all been won.