Castle of Terror


The Castle of Terror slot powered by Big Time Gaming plays has a 6 x 4-reel grid and with up to 4,096 ways to win, up to 96.72% RTP and a high variance level.

Players upon launching the game get a once in a lifetime opportunity of visiting a magnificent castle located in a pristine garden on the game reels.


A beautiful brick pathway leading you inside the castle’s yard provides the background graphics to the Castle of Terror slot. Colourful leaves and blossoming flowers can be seen all over the pathway. The castle’s beautiful silver gate acts as the game’s reel grid.




6 5 4 3 2
Shapeshifting lady in purple 50 3 2 1 0.5
Shapeshifting man in red 1 0.5 0.4 0.3
Shapeshifting lady in blue and the shapeshifting man in green – Alike symbols only 0.6 0.4 0.3 0.25
Ace and King – Of the same nature symbols only 0.5 0.3 0.25 0.2
Queen and Jack – Of the same nature symbols only 0.4 0.25 0.2 0.15
Number 10 and Number 9 – Of the same nature symbols only 0.3 0.2 0.15 0.1



Reel symbols which are featured include the shapeshifting lady in purple, the shapeshifting gentleman in red, the shapeshifting maid in blue, the shapeshifting gardener in green, and royal symbols.


  • Wild: Castle of Terror does not have a standard wild symbol. However, any of the shapeshifting human characters in the game may turn into wilds once the Holy Water feature activates.  
  • Scatter: Castle of Terror comes with two scatter icons. These are represented by the regular silver castle scatter and the gold castle megascatter.
  • Holy Water: At random on any spin, two or more of the centre four reel positions may be sprinkled with holy water. If any of the positions is currently occupied by a shapeshifting human character, that character immediately transforms into a wild symbol. In addition to this, each transformed wild increases the win multiplier for the current spin by one. All possible win lines are only evaluated after the wild transformations. Transformed wilds substitute for all symbols excluding the scatter.

  • Free Spins Feature: Twelve free spins come the player’s way once three or more scatters land simultaneously. Every scatter beyond the third awards an extra three free spins. A great beauty of the feature is that the Holy Water is always active during the round. The win multiplier for the feature starts at 1x and increases by one for each shapeshifting human character that transforms into a wild. When the win multiplier reaches a multiple of 20, an extra six free spins are awarded.
  • Enhanced Free Spins: The enhanced free spins round activates when at least one of the triggering scatters is a gold castle megascatter. The beauty of the enhanced free spins is that the Holy Water feature is active on each spin. The win multiplier starts at 2x and increases twofold for every shape-shifting human character that transforms into a wild.

  • Win Exchange: Every win equaling 100x the stake or more can be exchanged for 12 regular free spins if the player wishes to do so. All wins equaling 25x the stake or more up to 100x the stake can be gambled for the chance to win 12 regular free spins.

  • Bonus Buy: The bonus buy option allows players to purchase the regular 12 free spins for 70x the bet and 12 enhanced free spins for 200x the bet.


The Castle of Terror game comes with a horror theme and some average bonuses, overall it is good but not great slot from Big Time Gaming.


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