Highlights
- Interesting concept
- High RTP of 96.72%
- Maximum win of 60,860x your stake
Contents
Castle of Terror Slot Review
Deck the halls with all things gory because we're about to enter the Castle of Terror!
Big Time Gaming's latest slot is an ode to the vampire genre, and these blood-sucking creatures are ready to hypnotise and devour you! Castle of Terror feeds on the classics of the genre.
Think Sir Christopher Lee's Dracula rather than Robert Pattinson's Edward Cullen, and you'll get a picture.
Theme and Graphics
As you walk through peaceful villages somewhere in Transylvania, you'll notice a mysterious castle up on the hill.
Gothic in style, it looks regal and far more inviting when bathed in sunlight than the small cottages scattered in the field. It captures the imagination effectively.
The general setting of the Castle of Terror online slot is relatively peaceful and vibrant.
However, keep a close eye on the servant, the gardener, the lady and the gentleman, and you might catch a glimpse of their true nature. The animation transforming basic-looking characters into grinning creatures with fangs is quite surprising.

Castle of Terror Slot RTP and Variance
Castle of Terror has an RTP of 96.72% - higher than average online slots. Big Time Gaming made Castle of Terror a volatile game, with a maximum payout of 60,860x.
Castle of Terror Bonus
How to Play
Before you play the Castle of Terror online slot, here is an overview of the controls for the game:
- The rectangular green button is the Spin button, and with it, you set the reels in motion
- Use the two green pointers to set the bet amount
- Access the paytable and game rules by hitting the blue Menu button
How to Win
This Castle of Terror online slot is played on 6 reels, with 4-5-5-5-4 row formation. The total number of paylines is 4,096, and to hit one, you must land at least three symbols of the same kind in adjacent reels.
Top Vampire Slots
Top Vampire Slots
The lady of the house is the highest-paying symbol. The mysterious countess may reward you with up to 50x the bet for six appearances. The 9s and 10s are the lowest-paying of the bloodthirsty bunch and will treat you with up to 0.3x the bet.
Castle of Terror By Feature
Castle of Terror is full of extraordinary features, so we better see what they are all about!
Free Spins and Enhanced Free Spins
There are two kinds of free spins bonuses in this slot:
- Standard Free Spins bonus, triggered with at least 3 silver castles
- Enhanced Free Spins bonus, triggered with at least one golden castle of the 3
This is the main difference between the two kinds of bonus rounds:
- During the standard Free Spins round, the win multiplier starts at x1. It increases by +1 every time a high-paying symbol transforms into Wild.
- Enhanced Free Spins start with an x2 multiplier that increases by +2 when one of the high-paying symbols turns Wild.
Holy Water
Holy Water is a feature that triggers at random and may happen on any base game spin. The holy water from a small vial is splashed on the middle 4 reels, and 2 or more high-paying symbols will become Wild, increasing the multiplier by +1.
Win Exchange
Win Exchange is yet another way to get your hands on some free spins, but you must first trigger a win of at least 100x the stake. Once you achieve such a great win, the game will offer you to keep the money or choose 12 free spins instead.
Castle of Terror Review – Our Verdict
Regarding vampires, things can only go two ways - be a hit or a total miss. Vampirism has always been an essential part of penny-dreadful literature and B-productions, and no matter how hard certain artists try, it is almost impossible to run away from the banality of it.
Enter the Castle of Terror
With two kinds of spins and two Scatters, Castle of Terror more dynamic than most other Halloween slots. This online slot will impress fans of Immortal Romance, Baron Bloodmore And The Crimson Castle, and the like.
Castle of Terror definitely targets the horror fans of the slot world. All 4 high-paying symbols are deeply unsettling when they show their real faces. Albeit not scary, they are not something we would like to see in the dark!
Disclaimer: Castle of Terror trademark / license is owned by Big Time Gaming. This site is not endorsed by Big Time Gaming.
| Slot Name: | Castle of Terror |
|---|---|
| Software: | Big Time Gaming |
| RTP: | 96.72% |
| Volatility: | High volatility |
| Paylines: | 4096 |
| Reels: | 6 |
| Min Bet (all lines covered): | £0.20 (GBP) |
| Max Bet: | £1 (GBP) |
| Top Win: | 60860 |
| Features: | Wild Symbol, Scatter Symbol, Free Spins, Increasing Multipliers, Transforming Symbols, High volatility |
| Themes: | Halloween, Vampires |
| Last Update: | 04/12/2023 |
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Yes. Big Time Gaming have a UKGC license and are allowed to offer their games at UK licensed casinos. |
Castle of Terror Slot Review FAQs
What is the RTP of Big Time Gaming’s Castle of Terror slot?
The RTP of Big Time Gaming’s Castle of Terror slot is surprisingly high - 96.72%. It ranks better than many other slots online.
What is the biggest win available on Castle of Terror?
The maximum win you can achieve is 60,860x the bet.
How volatile is Castle of Terror?
The Castle of Terror is a very volatile game.
How does the free spins mechanic work in Castle of Terror?
To land the free spins bonus, you must get at least 3 Scatter symbols in view. If you get 3 silver castles, you’ll get regular free spins, but if you get the gold ones, the game will treat you with enhanced free spins.
What other games have free spins?
Free spins bonus is available, as with almost all slots on the market. Play Eye of Horus, Moon Princess, or Jammin’ Jars to see what they look like in other games.
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