Halloween lands on the 31st of October, but horror slots are a year-round obsession, and after playing every one of these, I've pulled together the 13 best. You'll find vampires, werewolves, evil spirits and a few games inspired by real serial killers, so there's something whether you want a light-hearted spin or genuine dread. Each comes with a free demo slots version, an in-depth review and UK slot sites to play at for real money. One thing worth knowing before you stake: the RTP you get can vary by site.
What the Expert says...
Top 13 Halloween Slots
With hundreds of Halloween-inspired slot games, I’ve done the hard work for you to come up with the best options. Normally, I produce a top 10 list but as it’s Halloween, I’ve gone for 13 (tying into bad luck, death and horror).
Before you spin: check the RTP
1. Mental 2 (Nolimit City)
- RTP: 96.06%
- Max Win: 99,999x
- Volatility: Insane
- Stakes: 20p to £5
- Release Date: 25 March 2025
Released in March 2025, Mental 2 is a horror-themed 5 reel slot by Nolimit City with 108+ ways to win. The sequel to Mental comes with insane volatility and can be played from 20p a spin.
It includes numerous bonus features/mechanics: Fire Frames/Reels, Dead Patient multipliers up to 9999x, Enhancer Cells (revealing wilds, splits, nudges, xWays), xHole and new xMental features. There are 3 different free spins modes (Bloodletting, Surgery and ExperiMENTAL) too. With 99,999 x bet max wins, the slot is darker and more feature-rich than its predecessor, delivering a more brutal and relentless experience.
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2. Immortal Romance (Microgaming)
- RTP: 96.86%
- Max Win: 12,150x
- Volatility: Very High
- Stakes: 30p to £4.50
- Release Date: 1 December 2011
Immortal Romance is my personal favourite online slot. With 5 reels and 243 ways to win, the vampire-inspired cult classic comes with a high 96.86% RTP rate. It tells a dark tale of love and intrigue where you head to a dark underworld which oozes intrigue and mystery.
Focusing on 4 supernatural characters, there’s a random Wild Desire feature in the base game which can award up to 5 wild reels. With 4 free spins features (based on each of the characters), they come with their own modifier including 5x multipliers, Vampire Bat multipliers up to 6, Rolling Reels with a rising multiplier up to 5x and random Wild Vine symbols which award wild symbols. With 12,150 x bet max wins, Immortal Romance has a unique look and soundtrack for each of the free spins features. Despite being released in December 2011, it remains one of the most popular slot games of all time and for good reason.
New cust only. Opt in & deposit £10+ in 7 days & wager 1x in 7 days on any eligible casino game (excluding live casino and table games) for 50 Free Spins. Wagering contributions vary. Free Spins worth 10p each on Big Bass Splash. 3 day expiry. 18+. T&Cs apply.
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3. Blood Suckers Megaways (Red Tiger Gaming)
- RTP: 97.66%
- Max Win: 20,521.9x
- Volatility: Very High
- Stakes: 10p to £5
- Release Date: 26 January 2023
Red Tiger Gaming created Blood Suckers Megaways, following NetEnt's releases of Blood Suckers and Blood Suckers 2. With 6 reels and up to 117,649 ways to win, it comes with an exceptionally high 97.66% RTP rate (it features on the highest RTP slots list).
This vampire-inspired slot game features a female vampire, demon Succubus, vampire Nosferatu and warlord Vlad the Impaler. With cascades for successive wins, there are 4 randomly-activated bonus features in the base game which add wilds, scatters, super wilds with multipliers up to 7x and wins multipliers up to 5x.
In the Free Spins feature, you pick from coffins to bring various modifiers into play (i.e. random wilds, super wilds, extra free spins and wins multipliers). This can lead to 14 free spins with a wins multiplier of up to 10x. With 20,521.9 x bet max wins, Blood Suckers Megaways is one of the best Megaways slots due to its range of bonus features, very high RTP rate and high win potential.
18+. New customers only. Opt-in required. 50% Deposit Bonus up to £100 on first deposit. Min deposit £20. 10x wagering on bonus amount. Max £5 per bet. Bonus valid for 7 days. Game, play and payment method restrictions apply. Play responsibly • BeGambleAware.org
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4. Darkness (Print Studios)
- RTP: 96.14%
- Max Win: 20,000x
- Volatility: High
- Stakes: 10p to £5
- Release Date: 19 October 2023
Darkness offers a one-of-a-kind experience which will scare the living daylights out of you. Created by Print Studios, it’s played with 5 reels and 26 paylines from just 10p per spin. The setting is a haunted house where a supernatural ritual has gone wrong in a terror meets ecstasy story. I love how you can adjust how dark the game is!
Look out for SuperSpinners in the base game which multiply your wins when wins pass through them. There are also Giant symbols up to 4x5 in size which help you win. The Dark Ritual Free Spins sees wilds that land on the edges of the Pentagram become sticky and award extra free spins. If you complete the Pentagram, you will summon Lucifer himself to reward you with wild reels. With 20,000 x bet max wins, Darkness is unsettling and terrifying making it perfect for those who enjoy gory-themed slot games.
New players only | Deposit & wager at least £10 to get free spins | Free Spins winnings are cash | No max cash out | Eligibility is restricted for suspected abuse | Skrill deposits excluded | Free Spins value £0.20 per spin | Free Spins expire in 48 hours |
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5. Mental (Nolimit City)
- RTP: 96.08%
- Max Win: 66,666x
- Volatility: Extreme
- Stakes: 20p to £5
- Release Date: 31 August 2021
Head to a creepy mental asylum with Mental, a disturbing and absurd slot game which can offer over 1 billion ways to win. With a chilling soundtrack, the setting is truly terrifying.
Featuring Fire Frames and Dead Patient multipliers up to 9999x, Mental comes with Enhancer Cells which reveal patient symbols, Dead Patient symbols, wilds, xWays (for more ways to win), xSplit symbols and xNudge Wilds. Look out for a spider symbol which triggers the Mental Transform feature with xWays, xSplit, Dead Patient, Wild or patient symbols awarded.
With 3 free spins feature, the Autopsy Free Spins see up to 5 Fire Frames on every free spin which remain active throughout. The Lobotomy Free Spins award Fire Frames as well as the Mental Transform feature on each free spin. There is also a Dead Multiplier which applies to patient symbols. In the Mental Free Spins, there are 2 sticky spider symbols and Dead Multipliers that don’t decrease in value. With 66,666 x bet max wins, this sepia-toned masterpiece is perfect if you’re searching for an epiphany and clear mind.
6. Serial (Nolimit City)
- RTP: 96.07%
- Max Win: 74,800x
- Volatility: Extreme
- Stakes: 20p to £5
- Release Date: 8 November 2022
Featuring the Bodycam Butcher serial killer who is thirsty for blood, Serial takes you to a gory crime scene: a bathroom with blood-stained shower curtains and blood-splattered walls. It’s as dark and sinister as you’re going to find. The heavy metal soundtrack adds to the disturbing visuals.
Beginning with 5 reels and 243 ways to win, wins award respins which open up Enhancer Cells. They award xWays for more ways to win, xNudge Wilds with an increasing multiplier, regular wilds and character symbols.
With xSplit Wilds, xNudge Wilds and Infectious xWays, there are 2 free spins features. The Search feature is played with 1,125 ways to win initially with Enhancer Cells on reels 2-4 open. In The Kill feature, it’s the same as the previous feature but an xSplit Wild on reel 5 which jumps up and down at random. There’s a unique xBizarre feature which is played when you land the 18,700 x bet max win. With 3 stages, you can gamble for wins of up to 74,800 x bet.
7. Disturbed (Nolimit City)
- RTP: 96.1%
- Max Win: 54,391x
- Volatility: Extreme
- Stakes: 20p to £5
- Release Date: 10 May 2023
Head to Dr Daniel Eath’s demented clinic in Disturbed, a Nolimit City slot with 5 reels and 256 ways to win. It’s inspired by the English serial killer Doctor Harold Shipman.
With 11 bonus features, look out for Mrs Nudge symbols as they nudge to fill the middle reel and increase the multiplier. There are Enhancer Cells which, when lit, award xWays, xSplit, Wilds, Disturber respins and Gravestones. With 2 free spins features with lit Enhancer Cells, landing Gravestones with Dr Daniel Eath stacked on the middle reel will trigger the Angel of Death feature which will result in the game’s max win: 54,391 x bet.
New players only | Deposit & wager at least £10 to get free spins | Free Spins winnings are cash | No max cash out | Eligibility is restricted for suspected abuse | Skrill deposits excluded | Free Spins value £0.10 per spin | Free Spins expire in 48 hours |
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8. Book of Shadows (Nolimit City)
- RTP: 96.19%
- Max Win: 30,338x
- Volatility: Extreme
- Stakes: 10p to £5
- Release Date: 20 August 2020
Book of Shadows takes you deep into the woods with the book of enchantments which aims to alter the reality of the real world. With 5 reels, you choose to play with 10, 15 or 20 paylines from 10p, 15p or 20p respectively.
All about the Free Spins feature, 10, 15 or 20 paylines will result in 3, 4 or 5 Shadow Rows (respectively). There is a randomly chosen Golden symbol that expands to fill the entire reel. With unlimited retriggers, max wins can reach 30,338 x bet. With a 96.01% to 96.19% RTP rate, it’s one of the best ‘Book of’ slots.
9. Devil's Finger (Shady Lady)
- RTP: 96.4%
- Max Win: 20,000x
- Volatility: High
- Stakes: 10p to £5
- Release Date: 17 March 2025
Released in March 2025, Devil’s Finger is from Shady Lady. With a horror theme, it has 6 reels and begins with 4,096 ways to win. You can spin away from 10p per spin.
Key mechanics include Cosmo adding Dragon Wilds, a Devil re-spin with locked rows, and fingers that climb columns increasing multipliers. The Free Spins feature includes 5 spells to boost outcomes and 2 more rows for 10,000 ways to win. With superb graphics, a compelling backstory and 20,000 x bet max wins, Shady Lady’s debut slot is unique and perfect for horror fans.
Devil's Finger cannot be played for real money in the UK as Shady Lady does not have a UK operating licence.
10. Dreadworks (Print Studios)
- RTP: 96.08%
- Max Win: 20,000x
- Volatility: Very High
- Stakes: 10p to £5
- Release Date: 10 October 2024
A sequel to Darkness and released on the 10th of October 2024, Print Studios’ Dreadworks is set in Big Jack’s toy factory and is truly terrifying as you take on evil-intentioned toys. With the ability to change the lightness of the game, it’s played on 5 reels and 26 paylines from 10p a spin.
Features in SuperSpinners multipliers and Jack-in-the-Box Wilds which add their numbers to SuperSpinners as well as randomly add mystery symbols to the reels for more winning opportunities. In the Big Jack Bonus feature, a win with a low-value symbol will see extra free spins awarded as well as the symbol removed from play. Look out for Big Jack who can take over up to 5 reels where he’ll display a random symbol on each free spin. Dreadworks is quite similar to the Darkness slot and has the same 20,000 x bet max wins. The RTP rate is 96.08% with the volatility in the very high category.
New players only. Min deposit £/$/€ 10. Wager req 10x. Full T&C apply. +18 Play responsibly.
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11. Evil Eyes (Hacksaw Gaming)
- RTP: 96.24%
- Max Win: 12,500x
- Volatility: High
- Stakes: 10p to £5
- Release Date: 12 September 2024
By Hacksaw Gaming, Evil Eyes has a dark horror feel and is set in an isolated graveyard. Overseen by ‘The Evil Eye’, it’s played on 5 reels and 3,125 ways to win from 10p per spin.
When the Evil Eye symbol appears under a winning symbol, the Evil Spread feature is activated. This sees the Evil Eye mark all winning symbols and rotate them right or down. This then is extended across the reels to replace marked symbols with the winning symbol. There is also free spins where low-value symbols that are spread by the Evil Spread feature are removed from play. Evil Eyes offers a novel approach to existing mechanics for wins of up to 12,500 x bet. The RTP rate is decent at 96.24%.
First deposit only. Min. deposit £20. Min Wager £20 on slots. Max 100 Free Spins. Max one claim. Spins credited within 7 days after deposit. Spins valid on Big Bass Splash. Spin value 10p. Full T&Cs apply. 18+
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12. Sew (Shady Lady)
- RTP: 96.3%
- Max Win: 20,000x
- Volatility: Very High
- Stakes: 10p to £5
- Release Date: 27 October 2025
Released in October 2025, Sew is a horror-themed online slot created by Shady Lady, with 5 reels and 1,600 ways to win. The minimum bet is 10p per spin.
Key features include a Hot Zone mechanic (adding wilds or multiplier wings) and a Hold ’n Win Re-Spins mode, where body-part symbols accumulate multipliers (up to 999x) and special symbols (Ripper, Doppelganger, Finger Face, etc.) further boost rewards. With 20,000 x bet max wins, Sew is spin-tingling, original and delivers a fresh twist on the classic Hold ‘n Win mechanic.
Sew cannot be played for real money in the UK as Shady Lady does not have a UK operating licence.
13. Death Becomes You (Hacksaw Gaming)
- RTP: 96.34%
- Max Win: 15,000x
- Volatility: Medium-High
- Stakes: 10p to £5
- Release Date: 25 June 2026
Hacksaw Gaming’s Death Becomes You, released in June 2026, is a dark horror-themed slot where you duel monsters and death itself. Played on 5 reels and 14 paylines, the minimum bet is 10p a spin.
The DuelReels mechanic sees VS symbols expand into wild reels carrying multipliers up to 100x, combining across wins. Spelling DEATH across a row triggers the Duel with Death feature: a Death DuelReel takes over 3 reels, building the multiplier across 3 lives. With 3 free spins modes that enhance the action, max win potential is 15,000 x your total bet.
New Halloween Slots
With countless horror-themed games available, there are plenty of new Halloween slots released every year. All are not created equal with the 5 best new releases in 2026 highlighted below. Excluding Death Becomes You (that made the top 13 list above), they include:
1. The Crypt 2 (Nolimit City)
- RTP: 96.1%
- Max Win: 31,248x
- Volatility: Extreme
- Stakes: 20p to £5
- Release Date: 3 March 2026
Nolimit City’s The Crypt 2 is a horror/rock-themed slot where dead music legends refuse to fall, set in a night-time cemetery. With 6 reels with 4,096 ways to win, xNudge Wilds carry stacking multipliers, xWays expand the grid to 531,441 ways, and Forsaken Fingers unlock locked rows. Eye Collector and Spider symbols harvest eyes from Dead Legends to lift the win multiplier. The Entombed Spins feature keeps unlocked rows and multipliers persistent across a multi-level gem chase. Max win potential is 31,248 x your total bet.
2. Le Vampire (Hacksaw Gaming)
Hacksaw’s Le Vampire casts Smokey the Raccoon as a fanged, Nosferatu-styled Count in a bat-filled castle, the 14th game in the 'Le' series and a fittingly gothic Halloween release. Played on a 6x5 Cluster Pays grid, wins need 5+ connected matching symbols. Rainbow-activated Golden Squares reveal Coins up to 500 x bet, Clovers multiplying to 20x and Bag/Pot of Gold collectors, while new Blood Squares deliver richer Coins. 3 free spins modes add a symbol-upgrading Symbol Bar for up to 15,000 x bet max wins. It also comes with an exceptionally high 97.57% RTP rate.
3. Hell Butcher (Pragmatic Play)
- RTP: 96.55%
- Max Win: 20,000x
- Volatility: Medium
- Stakes: 20p to £5
- Release Date: 29 June 2026
Pragmatic Play’s Hell Butcher is a gory horror Cluster Pays slot set in a lava-filled underworld. Played on a 6x6 grid, wins need 5+ connected matching symbols. It has a high 96.55% RTP rate. Tumbles drive successive wins, while the Hell Butcher Wild hooks 1 of 4 multipliers beneath the grid, replacing it with one double the highest visible value, up to 128x in the base game, 512x in free spins. 4 free spins modes guarantee hooks or permanently destroy multipliers. Max wins can reach 20,000 x your total bet.
4. Dark Spiral (Hacksaw Gaming)
- RTP: 96.22%
- Max Win: 10,000x
- Volatility: Medium-High
- Stakes: 10p to £5
- Release Date: 5 March 2026
Hacksaw’s Dark Spiral is a Japanese anime/horror-themed slot set in a mirror-filled art room. Played on 6 reels with 4,096 ways to win, cascades drive continuous wins, while Summoning symbols (1x2 to 1x4 in size) reveal stacks of up to 12 matching or wild symbols, unlocking as many as 331,776 ways to win, and grow when a Wild lands alongside. 3 free spins modes (Shattered, Twisted and Tortured) add higher, sticky and guaranteed Summoning symbols. Max win potential is 10,000 x your total bet.
5. Sanatorium Secrets (Pragmatic Play)
- RTP: 96.47%
- Max Win: 10,000x
- Volatility: Medium
- Stakes: 20p to £5
- Release Date: 1 June 2026
Sanatorium Secrets is by Pragmatic Play and set in a mist-shrouded gothic house. Played on 6 reels with 4,096 ways to win, the base game features 1x4 Wilds (up to 8x), 2x4 Wilds (up to 64x) and Hook symbols that transform high-value symbols into wilds. Free spins open with a Puzzle feature: landing puzzle pieces to fill reels transforms symbols into wilds and lifts minimum multipliers, with a full board awarding the max win (10,000 x your total bet).
Different Types of Halloween Slots
Halloween stretches much further than the 31st of October. Celebrated worldwide, you’ll find countless horror films and television series. Movies like The Exorcist, Saw, The Evil Dead, Alien and Beetlejuice are iconic.
There has also been a surge of true crime and serial killer documentaries which have played their part in popularising Halloween-inspired slots. They stimulate mental and physical effects which can lead to fear, anxiety, joy and even excitement.
Below, you’ll find a list of the various types of Halloween slot games you’ll encounter at slot and casino sites:
- 🧟 Zombie Slots: Films like Night of the Living Dead and Shaun of the Dead as well as TV series such as The Walking Dead make zombie slot games very popular. Playtech’s The Walking Dead: The Ones Who Live, 4ThePlayer’s 1 Left Alive, Quickspin’s Cabin Crashers and Pragmatic Play’s Zombie School Megaways are good options.
- 🧛 Vampire Slots: With movies such as Twilight and The Lost Boys, there are various vampire slots such as Push Gaming’s Fat Drac, Hacksaw Gaming’s Immortal Desire and Play ‘n GO’s Wild Blood.
- 💀 Day of the Dead Slots: Celebrated the world over, it’s closely linked to Halloween and has inspired several slot studios with games such as Thunderkick’s Esqueleto Explosivo 3, Yggdrasil Gaming’s Calavera Crush and Play ‘n GO’s Muerto en Mictlan popular options.
- 👻 Ghost Slots: Popularised by films such as Ghostbusters, ghost-inspired games include Play ‘n GO’s Ghost of Dead, Quickspin’s Ghost Glyph and IGT’s Ghostbusters Plus (official game).
- 🐺 Werewolf Slots: I particularly like Pragmatic Play’s Curse of the Werewolf Megaways, NetEnt’s Blood Suckers 2 and Playtech’s Full Moon Fortunes.
- ⚰️ Horror Slots: There are countless generic Horror-themed games like Skywind’s Alive! Megaways (inspired by Frankenstein), Nolimit City’s Beheaded and Hacksaw Gaming’s Dark Summoning.
- 🧙♀️ Witch Slots: Witches are also popular with 4ThePlayer’s 3 Lucky Witches, Microgaming’s Mega Moolah: The Witches’ Moon and of course Playtech’s Halloween Fortune.
- 🩸 Serial Killer Slots: The rise of slot games based on notorious serial killers is on the rise with Nolimit City releasing Serial, Disturbed and Kiss My Chainsaw.
- 🕸️ Mummy Slots: Playtech’s The Mummy: Books of Amun Ra is the official game from the iconic film series. You also have Play ‘n GO’s Legacy of Dead and Rise of Dead.
- 🎥 Branded Slots: Many slot providers have released official/branded games with licenses from movies or TV series. They include The Walking Dead (Playtech), Lordi Reel Monsters (Play ‘n GO) and Beetlejuice Megaways (Light & Wonder).
Top Studios for Horror-Themed Slots
Not every studio does horror well. Some treat it as a reskin (i.e. swap the fruit for pumpkins and call it a Halloween game) while a handful have made genuine fear part of their identity. These are the ones I look to first when I want a scare:
- Nolimit City: the undisputed kings of horror. No studio pushes theme and volatility harder. Serial, Mental, Disturbed and Possessed are as dark as mainstream slots get, drawing on asylums, exorcisms and real serial killers, and they're built on genuinely original mechanics (xWays, xNudge, Enhancer Cells) rather than borrowed ones. The trade-off is brutal volatility, so treat them as high-risk, but for sheer atmosphere and win potential nobody else comes close. It's my go-to studio for the theme.
- Shady Lady: the most exciting newcomer in horror. A young studio that's arrived fully formed, with Devil's Finger, Sew and Brainwashed all landing in quick succession. What sets them apart is that horror clearly comes first: the backstories, artwork and sound are built to disturb, and the maths follows. If you want something fresh rather than another vampire rethread, they're one of the studios I'm watching most closely.
- Print Studios: the specialists in mood. Darkness and its sequel Dreadworks share a clever signature touch: you can adjust how dark the game actually looks, dialling the dread up or down. Pair that with the SuperSpinner multipliers running through both, and you get horror slots that feel crafted rather than churned out.
- Hacksaw Gaming: style and invention in equal measure. Evil Eyes, Immortal Desire and Dark Summoning show a studio that dresses horror in slick, distinctive art and rarely leans on tired mechanics. Their ‘Le’ series and wider catalogue have made them one of the most consistent names in the space.
- Big Time Gaming: the Megaways originators, and still worth a look for horror. Castle of Terror puts their 4,096-ways engine behind a Transylvanian vampire theme with an unlimited multiplier in the free spins. Simpler than a Nolimit City game, but it hits hard when it lands.
- Pragmatic Play: the volume giant, and more accessible with it. Pragmatic don't chase extreme volatility the way the other studios do: instead they bring horror to a wider audience with polished, easy-to-play games like Curse of the Werewolf Megaways and Hell Butcher. If the Nolimit City end of the scale feels too punishing, Pragmatic is a good place to enjoy the theme without the white-knuckle swings.
Pros & Cons of Playing Halloween Slots
Halloween slot games are fun, especially in late October. With the ability to enjoy all year round, slot studios get creative to offer terrifying games which stand the test of time. Below, I take a closer look at the pros and cons of these slots:
Pros
- Eye-catching graphics & animations
- Eerie & spine-tingling soundtracks
- Multiple new horror-themed slots are released every year
- Halloween-inspired slots available from all providers
- Slot providers continue to push boundaries thematically
- Play free Halloween slots in demo mode
Cons
- Might be too terrifying for some
- Some studios create reskins of popular slots
- Many providers lack originality graphically
Other Popular Slot Themes
With online slot games making up the majority of a casino’s game portfolio, there are various slot game themes and genres to explore (depending on your preferences). If horror or Halloween isn’t for you, check out the below guides which are dedicated to Christmas, the Wild West, fishing and ancient Egypt.
Celebrate Christmas with the Best Christmas Slots
Saddle up with the Best Wild West Slots
🎣 Play the Best Fishing Themed Slots Online
𓂀 Uncover hidden treasures with the Best Ancient Egypt Slots
Halloween Slots FAQs
FAQ
Halloween Slots FAQs
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Halloween-inspired slot games are more commonly associated with late October but can be played every day. Look out for special offers and promotions the week leading up to Halloween though.
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All slot game reviews at OLBG come with free play demos meaning you can try for free before playing for real money at trusted and UKGC-licensed slot sites.
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Popular horror slot games include Serial and Mental by Nolimit City, Darkness by Print Studios, Immortal Romance from Microgaming and Blood Suckers Megaways by Red Tiger Gaming. Check out OLBG’s top 13 list.
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Slot developers are inspired by various films and TV series and can create graphically rich games with eerie soundtracks and spine-tingling graphics that stand out against more generic themes.
