Castle of Terror

by Big Time Gaming

Ever wondered what goes on in the castle at the top of the hill? There are rumours that there are vampires hiding out on those grounds. It's time to find out what is going on once and forever in the Castle of Terror.

Playing on 6-reels with 4,096 ways to win, this slot features free spins, holy water and megascatters leading to wins of up to 61,720x stake. See if you have what it takes to uncover the horrors in the Castle of Terror.

Slot information

RTP: 96.72%
Volatility: High
Max Payout: 61,720x stake
Reels: 6
Paylines: 4,096
Jackpot: No
Min Bet: 0.20
Max Bet: 15.00
Themes: Halloween, Horror
Release Date: 19th Oct 2022

Our rating

“ A terrific slot with unbelievable wins of up to 61,720x the stake ”

4.1 out of 5

Win potential

Play Castle of Terror

Jump straight into the action and play Castle of Terror now at the following fully licenced UK slot sites. These slot sites have been thoroughly audited and reviewed by the team here at Slot Gods to ensure they offer an exceptional user experience, are trustworthy, safe, secure, and boast the best selection of online slots in their portfolio including Castle of Terror...

Castle of Terror Screenshots

Castle of Terror Features

On every spin, there is a chance that 2 or more positions on the centre four reels will be hit by Holy Water. When this happens, the lady, gentleman, maid or gardener hit by water becomes wild with win multipliers that increased by +1 each time.

There are two scatters with the regular scatter and the gold megascatter. When 3 or more scatters land on the reels, 12 free spins are awarded with 3 extra free spins for each scatter. During free spins, the win multiplier starts at +1 and increases each time a human becomes a vampire wild. Holy Water occurs on every free spin.

When one of the triggering scatters is a gold megascatter, the enhanced free spins are awarded. During the enhanced free spins, the multiplier starts at +2 and increases by +2 when the human becomes a vampire wild. Every time the win multiplier reaches x20, 6 free spins are awarded.

Players can purchase the free spins round for 70x the stake or 200x the stake for the enhanced free spins. However, this is not available in the UK. During the gameplay, when you win 100x the stake, you have the option to exchange the money for 12 free spins. There is also the chance to gamble for free spins whenever you win between 25x to 100x stake.

Castle of Terror - Holy Water

Holy Water

On every spin, there is a chance that Holy Water triggers. This turns the lady, gentleman, maid or gardener that is hit by the water into wilds and adds a multiplier of x1.

Castle of Terror - Free Spins

Free Spins

When 3 or more scatters land on the reels, free spins are triggered. Enhanced free spins are triggered when a player lands a gold megascatter during the triggering action.

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Castle of Terror Review

There are always rumours swirling around about the strange castle on the hill. All of the residents in the castle only go out at nighttime and never allow visitors. It's up to you to find out what is going on and uncover the mystery once and for all.

Developed by Big Time Gaming, Castle of Terror is a horror slot that follows the strange tale of the castle. With free spins and big wins, there's a lot to gain from this adventure. Will you find out the secret of the castle?


As the slot opens up, there is a giant castle in the distance. Surrounding the castle is a forest and servant quarters for the worker of the castle. There are iron bars surrounding the gates highlighting that visitors are not welcome.

The general design of this slot looks to be inspired by Victoria architecture and feels quite old-fashioned. As for the symbols on the reels, there are four key figures with the lady, gentleman, maid and gardener that look like distinguished members of society until the Holy Water hits turning them into vampires.

During the free spins round, the visuals are quite scary and definitely live up to the name. In the game, when the reels are spinning there is an intense musical score that feels straight out of a horror film. Similarly, the visuals take the player into the castle during free spins which adds to the spooky factor.


As for the gameplay, there is nothing overly special throughout this game. There are scatters, multiple free spins rounds and multipliers - that's all there is to this slot.

Like most Big Time Gaming slots, all the menus can be found to the right of the reels with the spin button and bet level. At the bottom right, players will find the bonus buy option allowing players to buy the free spins but this is not available in the UK.

Win Potential

Big Time Gaming is also known for its amazing win potential. Firstly, the RTP is at a crazy high level of 96.72% which is fantastic. This is over the average standard and a great RTP to get started with.

This high volatility slot also has a wonderful win with the chance for players to win up to 61,720x the stake. This can be achieved through the free spins round. With the multipliers, players will be bound to win a decent amount through the bonus round.

Our Verdict

Castle of Terror is a great game to play for Halloween or just any time of the year. If you are looking for a gothic horror slot paired with simple but entertaining gameplay, then Castle of Terror is the one for you.

There are big wins throughout the game, terrifying visuals and glorious gameplay that is guaranteed to deliver an amazing experience to players. This is one castle that you must visit.

Charlie Vogelsang
Reviewed by Charlie Vogelsang Last updated on

As the Content Manager at Slot Gods, Charlie is focused on staying on top of the latest slot releases as well as finding the most recent trends. She spends her day searching for the best slots to be reviewed as well as managing most of the content that you will find on the site. Whether it’s the latest slot review from Relax Gaming or a guide on a brand-new mechanic, Charlie will be sure to have it covered on Slot Gods.

Learn more about Charlie here

Play Castle of Terror

Play Castle of Terror now at the following verified UK slots sites. These slot sites are fully licenced and have been thoroughly vetted and reviewed by us to ensure they offer a great user experience, are trustworthy, secure, and have a wide variety of the best online slots in their lobbies including Castle of Terror:-

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