Castle of Terror Overview

Halloween is already over, but Big Time Gaming just released a new slot game called Castle of Terror. But of course this doesn’t matter, because a horror themed game can be played all year round. Especially when it’s a vampires theme, which this one is.

The reels are set against a creepy, Transylvanian castle in the distance and symbols are standard card symbols and the owners and staff of the castle. You will find a gardener, maid and mister and misses of the house. The female symbol is purple and the highest paying symbol in the game. Which colors Big Time Gaming always uses. The highest paying symbol pays 50 times your bet for any 6-of-a-kind.

The game has 6 reels that are 4 symbols high, giving you 4096 ways.

Besides all normal paying symbols you will also find silver scatter symbols and a golden scatter symbol on reel 6. Wild symbols can only appear during bonuses.

Castle of Terror comes with a very big maximum payout of 61.720 times your bet.

Castle of Terror, Base slot game

Castle of Terror Features

Holy Water

During any normal spin the Holy Water bonus can be triggered at random. A bottle of holy water is thrown onto reels 2, 3, 4 and 5 giving random spots on these reels a glow.

When any character symbol lands on one of these spots, it will turn into a vampire, making the symbol wild. For each wild symbol that is created this way a multiplier will go up by x1.

After the reels stop spinning and you have gotten your possible win, all is reset back to normal.

Castle of Terror, Holy water

Free Spins Features

All reels have normal, silver, scatter symbols. But reel 6 also has a special, golden scatter symbol.

If you get 3 scatter symbols you will trigger 12 free spins. Any extra scatter symbol will add 3 more free spins.

During free spins the Holy Water bonus is active during each spin. But the accumulated multiplier will not reset between free spins and can only go up, with no limit.

During normal free spins the multiplier still goes up by x1 for each wild created. If you triggered enhanced free spins, triggered when you have gotten the golden scatter symbol, each wild created will increase the multiplier by x2.

Also each time you reach an increment of x20 multiplier, you are awarded with 6 more free spins.

Castle of Terror, Free spins feature

Win Exchange

If you manage to win 100 times or more your bet during a normal spin, you can trade this for 12 free spins. If you win between 25 and 100 times your bet, you can gamble the winnings for 12 free spins.

Bonus Buy

Some casinos offer the option to buy the normal free spins for 70x your bet. And enhanced free spins for 200 times your bet.


As with all Big Time Gaming titles, Castle of Terror is a great looking game. It really feels like one of those vampire movies.

The base game is a bit basic. Of course you have that random Holy Water feature, but it’s not that interesting to be honest. But it also comes with a very good free spins feature. Which can award huge wins, because the Holy Water happens every time and the multiplier never resets.

And it’s also recognizable because these normal and enhanced free spins where also available on Wild Flower.

Castle of Terror might not be the massively innovative slot that some Big Time Gaming titles are, but it’s still an amazing game that I really enjoyed.

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