Trending 5 Halloween-Themed Online Slots to Play in October 2025

With the spooky season upon us, it’s time for kids to get excited about their costumes and trick-or-treating, and for adults to get ready for a different kind of creepy experience. We’re talking scary online slots!

That’s right, many online casinos in the UK are dressing up for the fun and spooky holiday. Beyond the usual pumpkins, spiders, and black and orange backdrop, the top UK casinos are handing out to players slot candy – fantastic online Halloween-themed slots that give you not only a proper scare, but also a chance to win big prizes.

To help you prepare for the spooky times ahead, we’ve compiled a list of new online casinos in the UK that are already gearing up for Halloween and created a cheat sheet featuring five of the best Halloween-themed slots to play in October 2025. Be ready to be tricked and treated on the reels!

Book of Shadows
Released just last year by NoLimit Game Studios, Book of Shadows is a gothic, horror slot that takes you into a misty, haunted forest where you’ll be treated to a dark, supernatural adventure on the reels. Symbols include scary eyeballs, a magic book of spells, a cat, a longhorn skull, and a butterfly, all putting you in a dark, gothic mood. The Return to Player (RTP) is a touch above the industry average at 96.1%. Book of Shadows is a slot with high volatility, meaning that you may have to endure longer streaks between winning spins. Still, once you land a winning combination of Gothic symbols, your pay-out will probably be bigger.

Big Bass Halloween 2
The Big Bass series of online slots is one of the most acclaimed brands created by powerhouse game developer Pragmatic Play. So, Big Bass Halloween 2 brings the same beloved underwater theme, but puts a spooky Halloween twist on the reels. Symbols include a scary, radioactive mosquito, a chainsaw, a bunch of rotten fish, a zombie fisherman, and more. It has a high RTP of 96.71% and high volatility. Betting ranges from £0.10 to £250 per spin, making this slot an excellent choice for budget players and high rollers alike. So you may need to dive and spend some more time under murky, spooky water between winning spins. But once you land winning combinations, your payout will be bigger.

Halloween Fortune
Playtech, another leading game provider, released Halloween Fortune years ago, but it’s still considered one of the most popular, trending Halloween slots to watch and play if you haven’t already. The game boasts an RTP of 97.06%, which is spookily high. This 20-payline slot machine gives you a chance to win 10,000x your stake, and the 5×3 game grid boasts all the seasonal characters to get you into the spirit, including three different witches, potions, skills, a black cat, a raven, and more spooky characters that come to life on the reels.

Rabid Randy Dark Trails
If you are looking to get your Halloween scares from one of the newest online slots that were released, Rabid Randy Dark Trails is the slot for you! Iconic game developer NetEnt just released this game on time for this coming Halloween. It’s a scary journey, taking you to a haunted forest full of wild and predatory animals that try to devour you on the reels. Symbols include hunder Randy himself, bear paws, traps, and rabid, cruel animals like boars, wolves, and more. The game features a 96.13% RTP with medium volatility, making it ideal for balanced gameplay that strikes a balance between sizable prizes and frequent wins. It has 20 paylines, and there’s also an awesome bonus mode that includes free spins and a multiplier of up to 10x your stake.

Lucky Halloween
Lucky Halloween is another classic spooky slot, released by Red Tiger Gaming several years ago, and still drawing hordes of online casino players back every fall. The slot has a medium-to-high volatility and 95.07% RTP. But don’t let that put you off, the main game features, including free spins, wild symbols, bonus games, multipliers, random wilds, and additional wilds – all make an exciting gameplay packed with Halloween action and chances to win some impressive prizes. This 5×3 grid, 20-payline slot features all the seasonal symbols you could have hoped for, including a mummy cat, pumpkin, witch hat, and more. But the game really comes to life with Pumpkin-headed Jack riding a cool motorbike across the reels during the bonus rounds and spreading high-paying symbols and multipliers.

Playing Halloween Slots
Halloween slot machines are a massive trend among online casino players across the UK and beyond. It’s not just about the pumpkins, witches, cats, and other gory symbols on the reels. These slots offer an immersive way to capture players’ hearts, souls, and attention, fully immersing them in the spooky and fun atmosphere of the season. Think of it like a terrifying Halloween movie, with a dark and unknown backdrop, an eerie soundtrack, and a horror waiting to jump out at you from every corner.

But unlike the horror Halloween movies, there’s another element to keep you on the edge of your seat. When playing Halloween slots machines, there’s also the chance for you to land winning spins and win great prizes that will keep the thrill of trick-or-treating much longer after you take off your costume and wipe away the scary makeup.

But like the mood you should have at Halloween, always remember that playing slots is all for fun, and never see it as a sure way to earn money. Always know your limits, bet responsibly, and when things get out of hand, stop and seek help. Happy, safe trick-or-treating, on the slots and in your neighbourhood!

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