Game Review [Castle of Terror] – Big Time Gaming

min read
homepage of the Castle of Terror online slot game by Big Time Gaming
BetMGM Aug 07, 2023, 7:51 AM

The Castle of Terror slot is an enchanting online casino game developed by Big Time Gaming. Set against a backdrop of a haunted castle, the game offers an adrenaline-filled experience, beautifully blending elements of horror and mystery.

Take a closer look at this scary yet exhilarating online slot with this Castle of Terror slot review where gameplay, features, slot bonuses and graphics are discussed in more detail.

Game Overview

Castle of Terror is a slot with 6 reels, 4 rows and 20 paylines that culminates in 4,096 winning combinations. Betting options start at a minimum of $0.20 going all the way up to a maximum of $15 per spin. It outperforms many other slots with an above-average RTP of 96.72% and a high volatility for thrill-seeking jackpot chasers. Earnings in the base game can rise to a staggering 29,690 times the bet, while in the bonus round, they can surge to an astonishing 61,720 times the initial wager.

How To Play

Playing Castle of Terror is straightforward. All necessary controls are conveniently located on the screen’s right side. The vibrant green square, featuring a white play sign, is your go-to button for spinning the 6 reels. The stake section allows players to adjust their wager.

The green square with intertwined white arrows triggers the auto-spin feature. Users can set the number of automated spins and establish loss and single-win limits. The blue square with three lines reveals the paytable. This same window provides access to the autoplay features, additional options and the help file.


The graphics in Castle of Terror are impressively detailed and atmospheric. The haunted castle setting is eerie yet captivating, with gothic visuals and spine-chilling sound effects that engulf your senses. The symbols are beautifully designed, featuring various spooky characters and items, adding to the overall terror-filled ambiance of the game.


The game’s lower-paying symbols include the traditional 9, 10, J, Q, K and A, with six identical symbols rewarding 0.3x to 0.5x of your bet. Higher-value symbols are characterized by vampires colored green, blue, red and purple, offering between 0.6x to 50x of the wager for landing six.

Interestingly, the highest-paying symbol starts rewarding from just two matches, providing a 0.5x return. The Holy Water feature can generate wild symbols, depicted as a golden ‘W.’ The game also incorporates two distinct scatter symbols, represented by silver and gold castles.


Holy Water Feature

A random activation in your spins, the Holy Water feature splashes holy water on two or more positions on the middle four reels. If any vampires are hit, they transform into wild symbols, increasing the win multiplier by 1x for each vampire hit. Wild symbols enhance your winning chances by replacing other symbols, except scatters.

Scatter Symbols

Two distinct scatter symbols exist — a silver and a golden one. The golden scatter, exclusive to reel 6, initiates the enhanced free spins bonus when landed with at least two silver scatter symbols.

Free Spins

Landing three or more scatter symbols triggers the free spins feature. The first three scatters yield 12 free spins and every additional scatter provides 3 extra spins. If you score two or more silver scatters along with a golden one, the enhanced free spins feature is activated.

Normal Free Spins

Here, you commence with a 1x win multiplier, which increases by 1x every time a vampire becomes a wild. The Holy Water feature activates on each spin and the multiplier persists throughout this bonus game. Achieving a 20x multiplier earns you an additional 6 free spins.

Bonuses and Jackpots

Enhanced Free Spins

Starting with a 2x win multiplier, the multiplier increases by 2x whenever a vampire turns into a wild symbol. The Holy Water feature activates with each spin and the multiplier remains consistent within the bonus game. Reaching a 20x multiplier rewards you with an additional 6 free spins.

Win Exchange

If you land a win that equals or exceeds 100x the bet, you have the option to exchange 100x of the win for 12 additional free spins.

Gamble Feature

In case of a win between 25x to 100x, the gamble feature comes into play. You spin a wheel with a chance to win 12 free spins if it lands on a green field. The higher your win, the better your chances of earning the free spins.

Bonus Buy Option

Eager to get into the bonus games? The bonus buy option allows instant access by paying 70x or 200x, activating the normal and enhanced bonus games respectively.

Similar Games

Magic Maid Cafe

Magic Maid Cafe is an anime-themed slot game that also delivers exciting gameplay. It’s a 5×3-reel, 20-payline online slot, playable on all devices. It’s packed with dynamic features such as the Avalanche Multiplier (which boosts continuous wins up to 5x) and the Free Falls feature offering up to 15x multipliers.

Mimicking Gonzo’s Quest’s mechanics, it boasts an RTP of 95.97% and a max payout of 2,300x the stake. This medium to high volatility slot promises steady wins and the possibility of a 37,500x jackpot with the candyfloss waitress symbol.

Wild Worlds

Wild Worlds is a cartoon-styled, cluster-pays slot that transports players into a sci-fi metropolis under monster attack. This game, more akin to a video game than traditional online slots, has a split-screen layout: a command center with three bird-like agents on the left and a 5×5 base game screen on the right. 

The game features a pulsating EDM soundtrack and symbols ranging from basic gems to gold-ornamented hero icons and premium wilds. Slots bonus features are activated by scatter symbols, leading to exciting adventures in Dark Forest, Ice World and Fire Lands. Wild Worlds is a medium volatility slot with top wins of 200x per spin, a maximum payout of 2,500x and an RTP of 96.47%.

Fortunes of Egypt

If you’re fascinated by ancient cultures, Fortunes of Egypt could be your next favorite. The game is adorned with familiar ancient Egyptian symbols such as the sphinx, pyramids and scarab beetle, all delivered in a delightful cartoon style and accompanied by humorous sound effects. 

Its gameplay simplicity doesn’t compromise potential winnings, with a medium-volatility slot offering up to 10,000x your original bet per free spin, paired with a 2x multiplier. Fortunes of Egypt’s RTP of 96.5% makes it worthwhile. There are three jackpots — Jackpot, Super Jackpot and Grand Jackpot — worth 28x, 200x and 800x your total stake respectively, triggered by landing three sarcophagus symbols on adjacent reels.

Play at the Castle That Is BetMGM

Submerge yourself in the electrifying realm of horror-themed slots at BetMGM, where an extensive variety of online slots are tailored to suit your online gambling style. Explore classic casino table games like blackjack, baccarat and poker; or sample the excitement of live dealer casino games. Register with BetMGM today to unlock a world of endless entertainment where you can hone your online casino gaming skills.

Actress Vanessa Hudgens flipping casino chips next to the text "The King of Casinos"
About the Author


Read More

Our BetMGM editors and authors are casino experts with a wealth of knowledge of the online casino industry at all levels. Their coverage includes company news, game reviews, how-to instructional articles, strategy guides, and editorials showcasing BetMGM’s superior product and game library.

Our BetMGM editors and authors are casino experts with a wealth of knowledge of the online casino industry at all levels. Their coverage includes company news, game reviews, how-to instructional articles, strategy guides, and editorials showcasing BetMGM’s superior product and game library.