Castle of Terror

4.7 (785 votes)

Take a trip to Transylvania for a ghoulish adventure that’s more than meets the eye. Survive the terrors of night and escape with up to over 61,000x your total bet

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Min/Max Bet:20p/£2
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About Castle of Terror

You’ll be in for a fang-tastic fright with the Castle of Terror slot from Big Time Gaming. You’ve arrived in a seemingly normal town but something seems off about the inhabitants. Cast your magic Holy Water on any spin to reveal the true horrors of the townsfolk and transform them into Wild symbols. Discover spooky Scatter symbols to activate the free spins mode with Holy Water active on every spin. Burn away the creatures of the night to add extra win multipliers and unlock additional free spins. Discover the elusive gold MegaScatter symbol on reel 6 to upgrade your free spins mode with every symbol affected by Holy Water adding 2x to the total win multiplier.

How to play Castle of Terror

  1. Choose your bet level and press spin to begin
  2. Match 3 or more symbols along the 4,096 potential paylines to win
  3. Holy Water can activate randomly on any spin and transform Character symbols into Wilds
  4. Whenever a symbol is transformed, it will also add 1x to the current spin win multiplier
  5. 3 or more Scatters activates free spins with Holy Water active at the start of each spin
  6. During the free spins mode, each character transformation adds 1x to the total win multiplier
  7. If free spins activation included a MegaScatter on reel 6, the free spins mode is upgraded with double multipliers on each Holy Water transformation
  8. Achieving a win of 25x-100x during the base game activates the Win Exchange feature for the chance to instantly activate the free spins mode

Pay table symbols

Based on a £1 bet

  • Woman- 6:£50 5:£3 4:£2 3:£1 2:50p
  • Man- 6:£1 5:50p 4:40p 3:30p
  • Nurse/Gardener- 6:60p 5:40p 4:30p 3:25p
  • A/K- 6:50p 5:30p 4:25p 3:20p
  • Q/J- 6:40p 5:25p 4:20p 3:15p
  • 10/9- 6:30p 5:20p 4:15p 3:10p

Bonus symbols

  • Wild- Substitutes for any paytable symbol
  • Holy Water- Overlays on reel spaces and turns Character symbols into Wild symbols
  • Scatter- Activates free spins
  • MegaScatter (reel 6 only)- Activates Enhanced free spins mode

Bonus features

Holy Water Transform- During play, Holy Water can activate and splash over spaces on the reels. If a character symbol (Woman/Man/Nurse/Gardener) lands on the spaces covered by Holy Water, they will be replaced with a Wild symbol. For each symbol that transforms into a Wild, 1x is added to the total spin multiplier that is applied to all wins on the current spin. Once all wins have been calculated, the multiplier resets to 1x.

Free Spins- 3 or more Scatters activates free spins with a max of 6 awarding 18 free spins. During the free spins mode, Holy Water is active at the start of each spin and will cover reel spaces with Holy Water. Each time a Character symbol is transformed by the Holy Water, 1x is applied to the total feature multiplier that continues to increase for the duration of the mode. If the total multiplier reaches 20x, then 6 additional spins are added to the remaining total. The feature multiplier is unlimited with 6 spins being awarded for every time 20x is added to the total value.

Enhanced Free Spins- The MegaScatter symbols appears only on reel 6 and triggers the Enhanced Free Spins mode if included in a free spins activation. During the Enhanced Free Spins mode, each symbol transformation adds 2x to the total feature multiplier.

Win Exchange- When a win is achieved during the base game of 25x-100x, you have the option to gamble the win value on 1 of 2 bonus games:

If a win of 25x or more is achieved: You have the chance to spin on a wheel containing green and red segments to instantly be awarded 12 free spins. Land in the green to activate the mode

If a win of 100x or more is achieved: You can swap the win value to instantly activate the free spins mode and be awarded 12 free spins


Can I activate free spins on Castle of Terror?

3 or more Scatters activates free spins with up to 6 Scatters awarding up to 18 free spins. During the free spins mode, if the total win multiplier reaches 20x, then an additional 6 spins are awarded for each time the multiplier adds a value of 20x to its total.

What is the Castle of Terror RTP?

The RTP for Castle of Terror is 96.72%. For every £10 bet, the average return to player is £9.67 based on long periods of play.

What is the max win for Castle of Terror?

The max win for Castle of Terror is 61,720x your total bet.

Can I play Castle of Terror on mobile?

Battle the forces of darkness from the comfort of your own home as Castle of Terror can be enjoyed on all of your favourite mobile devices. Sign up to MrQ today and play over 900 real money mobile slots and casino games.

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Enter the abandoned asylum if you dare. Survive the madness and walk out with up to 66,666x your total bet