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The Castle of Slotenstein

  • RTP 96.02%
  • MAX WIN € 234562
  • VOLATILITY LOW HIGH
PROVIDER
RELEASE DATE
10.2026
PAYLINES
20
LANGUAGES
  • Bulgaria
  • Czech Republic
  • Germany
  • United Kingdom
  • Spain
  • France
  • Croatia
  • Hungary
  • Italy
  • Japan
  • Korea, Republic of
  • Lithuania
  • Poland
  • Portugal
  • Romania
  • russia is a terrorist state
  • Thailand
  • Turkey
  • Ukraine
  • China
Speaker Camera
The Castle of Slotenstein
Play on desktop
Description
The Castle of Slotenstein – gameplay screenshot

Description

It’s deliciously spooky, and dangerously thrilling, with monstrous wins lurking in every corner!

Deep in the hills, behind a gate no villager dares approach, a doctor once set out to conquer death itself. He didn’t quite manage that, but along the way, he built something far more useful: the perfect gamer. A towering, green-skinned monster who never loses, and who has already cleaned out all casinos for miles around.

This is The Castle of Slotenstein! An extraordinary title where three glowing pumpkins – Shock, Trick, and Treat – light the way to a new kind of Hold & Win, each one carrying its own booster for the bonus round. Land Bonus symbols and watch them pile up: stack 3 on a single reel, and they vanish from the field, striking a lock from the Grand Reel of Fortune.

The doctor’s out, and the monster’s craving a challenger. Step inside, if you dare!

Game features

WILD SYMBOL

Wild substitutes for all regular symbols in winning combinations except Bonus symbols. It appears only on reels 2-5 in the main game.

ORANGE BONUS SYMBOL

Orange Bonus symbols appear only in the Bonus Game and award random values from 0.5x to 5x bet.

THREE BOOSTERS

Green, Purple, and Blue Bonus symbols can land on any reel in the main game. Each of these symbols is associated with a specific booster:
• Green Bonus – Shock

• Purple Bonus – Trick

• Blue Bonus – Treat.
The active boosters are determined by the colors of the Bonus symbols present on the reels during the triggering spin.

SHOCK BOOSTER

Increases the number of Bonus Game spins from 3 to 4.

TRICK BOOSTER

Allows Purple Bonus symbols with values from 0.5x to 5x bet to land during the Bonus Game. Each Purple Bonus fills empty positions and increases Orange Bonus values on its reel.

TREAT BOOSTER

Allows Blue Bonus symbols with values from 0.5x to 5x bet to land during the Bonus Game. Each Blue Bonus adds its value to all Orange Bonus symbols on the game field.

BONUS GAME

The Bonus Game can start with one, two, or all three boosters active. It begins with 3 or 4 spins, and only Bonus symbols appear on the reels. Each new Bonus symbol resets the spin counter. When Bonus symbols fill all 3 positions on a reel, the values displayed on those symbols are added to the win meter. The reel is then cleared, allowing new Bonus symbols to land. The first time this occurs on a reel, the corresponding section of the Grand Reel of Fortune is unlocked.

GRAND REEL OF FORTUNE

The Grand Reel of Fortune can only be activated during the Bonus Game. Unlocking all 5 sections awards one spin at the end of the Bonus Game for one of 8 pri zes: x2, x3, x5, or x8 multiplier, or MINI, MEGA, S UPER, or GRAND special prize

BONUS BUY

The Bonus Buy feature allows the player to purchase and instantly trigger the Bonus Game with one, two, or all three boosters active.

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