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GrandSlam Slot

GrandSlam slot is one of the popular machines by Greentube from Novomatic. The main characters are fruits, and the game has additional features that increase the probability of getting a big prize. We will explain to you everything about the game and let everyone play the demo of this machine for free without registration and restrictions. RTP is 95%.

Hidden parameters and settings of GrandSlam slot (data from testing)

Description of the slot

Fans of retro games will love GrandSlam slot. Developers from Novomatic return every gambler to the past. All characters are decorated in a traditional style with similar images to the first "one-armed bandits." There is unusual scatter, which brings a mysterious prize, and the risk game is also available.


  • Number of reels - 5
  • Number of lines - 9
  • Line Bet - from 0.044 to 11.11
  • The range of the size of bets - from 0.40 to 100.00
  • Maximum winning for a combination of symbols – x20 000 (at a game at the highest stake brings 4 bells)
  • Wild symbol - yes
  • Scatter - yes (the inscription of GS gives an additional mysterious winning)
  • The expected percentage of payments (RTP) in GrandSlam slot is 95%


In the machine, players will enjoy the bonus - a mystical scatter. This symbol is the same as the game logo. It is selected at random and depends on the size of the bet. For example, in the game at the highest bet, five scatters will bring up to 10 000 coins.

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