Barz Casino
100% WELCOME BONUS UP TO £300 + 50 BONUS SPINS White Hat Gaming Limited launched Barz Casino in July 2021, it was the second brand after Skol Casino hit the scene earlier the same year. Hot on its heels SpinYoo launched in September 2021, completing a trio of brand new White Hat Gaming online casinos. Although a relative newcomer, Barz Casino has already found a name for itself following in the footsteps of many successful White Hat brands including Gate 777, Spin Station, and MiamiDice.
100% Bonus + 50 SPINS
*18+ New Players Only. T&C's Apply. BeGambleAware
SpinYoo Casino
White Hat Gaming is the company behind some of the most successful and well-known online casinos to date including DreamVegas, MiamiDice, and Casino Cruise. In 2021, White Hat launched SpinYoo, an equally impressive site packed with 2,000 slots and casino games, Players have the opportunity to build a unique, personalised games gallery to add their all-time favourite slots and games.
100% Bonus + 100 SPINS
*18+ New Players Only. T&C's Apply. BeGambleAware-
O'Bryans' Funland (95.30% RTP)
Irish themed slots seem popular with many players and O'Bryans' Funland developed by Red Rake Gaming is another excellent addition to the Irish themed genre. The game is packed with features such as Wild Reels, free spins, Pot of Gold and growing reels to name but a few.
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Ocean Fortune (95.18% RTP)
Ocean Fortune is a 5 reel, 20 payline slot from Red Tiger Gaming. Dive deep into the ocean in the search for hidden treasures.
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Ocean Magic
Ocean Magic is a slot from IGT that transports you to an underwater world complete with exotic fish and a tranquil and relaxing tone.
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Ocean's Secret (96.00% RTP)
 Explore the wonders of the sea with Ocean's Secret a 5 reel, 40 payline slot from Fuga Gaming.
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Ocean's Treasure (95.99% RTP)
Dive deep into the ocean and find the underwater Goddess in NetEnt’s Ocean’s Treasure. Unlock the long lost, guarded treasure if you dare, for wins of up to 1,200x your bet on a single spin. Features include, stacked wilds, Free Spins and Multipliers.
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Octopus Treasure (94.25% RTP)
Take a journey to the bottom of the sea with Play N Go’s Octopus Treasure slot. This is a medium variance slot, set on 5 x 3 reels with an RTP of 94. 25%
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Odin Infinity Reels Megaways (96.18% RTP)
Mix the Big Time Gaming Megaways mechanic with the Reel Play Infinty Reels mechanic and you’ll get Odin Infinity Reels Megaways. It has an RTP slightly above average at 96.18% and features changing reel sets, free spins, multipliers, infinity reels, scatters, wilds and a bonus wheel.
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Odin: Protector of Realms (96.00% RTP)
Play N Go are back again with another Norse themed, Odin video slot which utilises the cluster pays mechanic. Odin: Protector of Realms is a 7 reel, hexahedron shaped slot due for release in July 2021.
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Odin’s Riches (96.07% RTP)
Get ready for some cluster pays action, wrapped up in a Greek Mythology theme with Odin’s Riches. This is a high variance collaboration from Microgaming and JustForTheWin, with an RTP of 96.07%. Betting starts at 20p per spin, rising to £50 per spin, with a top payout of 5000x your wager
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Ogre Empire (95.22% RTP)
There are slots that are based on famous movies, and then there are those which are loosely based on movies without actually officially referencing the subject matter, but doing it subtly enough to not seem cheap or tacky.
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Oh Catrina (95.47% RTP)
Oh Catrina is a 5 reel, 15 payline Mexican themed slot from Booming Games. There are scatter, wild and free spins features. Autoplay available.
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Oink Country Love
Microgaming have been pretty hit and miss over recent years, releasing some truly excellent slots, and some frankly abysmal ones.
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Olympus Thunder (97.01% RTP)
Olympus Thunder is a 5 reel, 20 payline slot from NYX Interactive. Lots of special features are on offer on this slot.
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OMG! Puppies (96.05% RTP)
There’s something to be said for a slot that wears its heart on its sleeve, and that’s certainly the case with this offering from WMS.
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Once Upon a Dime (95.12% RTP)
Once Upon A Dime is a 5 reels and 25 paylines slot by 888. There are scatter, wild, multiplier and free spins features. Autoplay available.
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Once Upon A Time (95.28% RTP)
Once upon a time in a kingdom far away Betsoft created a slot game filled with magic and fantasy which could make financial dreams come true.
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One Hundred To One (95.36% RTP)
If you like the classic looking slots then One Hundred To One from Greentube will be right up your street. This is a medium - high variance slot and has an RTP of 95.36%.
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Ooh Aah Dracula (96.00% RTP)
Ooh Ahh Dracula is a 5-reel video slot with 10 paylines. Powered by Barcrest, this popular game has a suitably spooky theme.
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Opal Fruits (96.75% RTP)
Big time Gaming bring you a mouth- watering slot called Opal Fruits. With a Triple Reaction feature, multiplier wilds, wilds, scatters and free spins, there are plenty of features to increase your chances of a win.
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Orbital Mining (94.65% RTP)
Sci-fi fans will simply adore this fascinating video slot from Top Game. It focuses on the concept of mining in outer space, which is an unusual theme, but one that offers players a unique and entertaining online slot experience.
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Orbital Mining (94.65% RTP)
Orbital Mining is a 5 reel, 25 payline slot from Pragmatic Play
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Orbs of Atlantis (96.60% RTP)
Head to the lost City of Atlantis with Habanero’s medium variance video slot, Orbs of Atlantis. This slot has an RTP of 96.6% and you can play from just 15p a spin, all the way up to an eye-watering £3000 a spin, so something the high rollers will enjoy!
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Orca's Wild Bonanza (95.90% RTP)
Immerse yourself in the aquatic wonderland of Orca's Wild Bonanza, a thrilling slot experience by Boomerang Studios and Reelplay for Yggdrasil.
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Orient Express (96.10% RTP)
Buy your ticket and come on board the Orient Express, a 5 reel, 20 payline slot from Yggdrasil
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Oro de Mexico
Oro de Mexico is a 5 reel, 25 payline slot from RCT Gaming. there are wild and free spins features.
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Osiris (97.09% RTP)
A new release from NextGen/Games Lab, Osiris is a slot themed around Ancient Egypt, arguably the most used concept in the history of slot games.
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Otterly Amazing (96.09% RTP)
Deep dive into an undersea adventure with "Otterly Amazing", a beautifully-crafted slot game from Blue Guru Games.
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Ox Bonanza
2021 is the year of the Ox, according to Chinese astrology, so RTG are celebrating with the release of Ox Bonanza; a high variance slot with 25 paylines. Some of the features in the game are scatters, wilds, jackpot prizes and free spins.
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Oxygen (94.00% RTP)
Head to the underwater world of Coral Creek in Elk Studio’s latest release, Oxygen. Enjoy many bonus features, including Exploding Wilds, X-Blaster Wilds, Oxygen Bubbles, and Bonus games, while aiming for the maximum win potential of 25000x the bet.
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Ozwin's Jackpots (96.70% RTP)
Ozwin's Jackpots is a 5 reel, 20 payline lot from Yggdrasil Gaming with a beautiful enchanting theme.
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Ozzy Osbourne (96.30% RTP)
NetEnt’s latest branded slot release is based on the Prince of Darkness himself, Ozzy Osbourne, the lead singer in Black Sabbath who were a famous heavy metal band who started out in the 1970’s.
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