Free slot demos with plain-language reviews

Spinomenal slots

Spinomenal builds feature-led video slots, many of them in long-running series such as Demi Gods and Lucky Jack. The demos below run on play money, with each game's listed RTP, maximum win and layout beside its review.

Demos
86
Licences
UKGC, MGA
Known series
Demi Gods, Lucky Jack
Listed RTP
92.85–96.28%
Listed max win
10,000×

86 Spinomenal demos

SlotsOur scoreReleasedGridRTPVolatilityMax win
Gorilla Blast – Hold & Hit 3x37.620263×396.28%*—5,000×
Demi Gods 7 Nightfall8.520265×495%—4,000×
Easter Mayhem8.720255×396.20%Medium2,000×
Book of Savannah's Queen6.620246×392.85%*——
Fortuna De Los Muertos 37.620235×395%Medium-high1,000×
Dracula – The Hunt8.320235×495%High3,000×
Wolf Fang – The Origins7.420235×395%—1,000×
Majestic White Rhino7.920235×395%——
Book of Lucky Jack – Baba Yaga's Tales9.120236×396.01%High10,000×
Story of Odin7.820235×495%Medium-high3,000×
Fairytale Beauties7.620235×395%Medium—
Frozen Fruits – Chase 'N' Win8.020223×395.42%*—5,000×
Book of Rampage – Reloaded8.520225×395%—10,000×
Easter Gifts 10E6.620226×495%—3,000×
Reels of Rio7.620225×395%Medium1,000×
Winners Gold6.420213-4-4-4-395%—1,000×
Age of Pirates7.520215×395%——
Book of Rampage8.320215×395%—5,000×
Childhood Sweets6.620215×495%—2,000×
Queen of Fire8.620215×495%Medium1,000×
Age of Pirates 15 Lines7.4—5×395%—450×
Athena's Glory7.3—5×395%——
Aztec Spell7.8—5×395%—1,000×
Beer Collection 10E6.9—6×495%—3,000×
Book of Baba Yaga – Winter Spell8.2—5×395%—5,000×
Book of Clovers Reloaded8.2—5×395%—5,000×
Book of Demi Gods 58.2—5×395%—5,000×
Book of Demi Gods II – The Golden Era8.2—5×395%—5,000×
Book of Fairytale Beauties8.4—6×395%—10,000×
Book of Horror8.2—5×395%—5,000×
Book of Irish Treasures8.4—6×395%—10,000×
Book of Majestic King8.2—5×395%—5,000×
Book of Medusa7.6—5×396.14%*High—
Book of Rebirth Reloaded8.2—5×395%—5,000×
Book of Sirens – The Golden Era8.2—5×395%—5,000×
Book of Skulls – Uncharted Treasure8.2—5×395%—5,000×
Book of the Divine – Egyptian Darkness8.2—5×395%—5,000×
Book of the Divine Reloaded8.2—5×395%—5,000×
Book of the Divine8.2—5×395%—5,000×
Book of the Night Wolf8.4—6×395%—10,000×
Book of Titans8.4—6×395%—10,000×
Book of Wolves8.2—5×395%—5,000×
Dark Wolf7.7—5×395%——
Dracula – Unleashed7.8—5×395%—1,000×
Egyptian Rebirth II – The Mummy's Return7.5—5×495%—3,000×
Egyptian Rebirth II7.8—5×395%—1,000×
Golden Piggy Bank – Bling Bling7.9—5×395%—900×
Golden Piggy Bank7.9—5×395%—900×
Hut With Chicken Legs7.5—5×495%—3,000×
Irish Treasures – Leprechaun's Fortune7.3—5×395%—1,000×
Joker's Charms – Patrick's Day7.5—5×495%—3,000×
Joker's Charms – Valentine's7.5—5×495%—3,000×
Lucky Jack – Book of Rebirth – ED8.4—6×395%—10,000×
Lucky Jack – Dagger of Destiny7.8—5×395%—1,000×
Majestic King7.7—5×395%——
Mardi Gras Fortunes7.3—5×395%—1,000×
Pick a Fruit – Frosty Reels6.5—5×495%—2,000×
Piggy Bank – Stacked Fortune7.3—5×395%—1,000×
Poseidon's Rising 15E6.4—5×395%—1,000×
Poseidon's Rising6.4—5×395%—1,000×
Queen of Fire EE6.2——95%—1,000×
Queen of Fire – Frozen Flames8.3—5×495%—1,000×
Queen of Ice – Frozen Flames8.3—5×495%—1,000×
Queen of Ice8.3—5×495%—1,000×
Queen of the Forest – Autumn Kingdom8.3—5×495%—1,000×
Queen of the Forest – Night Whispers8.3—5×495%—1,000×
Ra's Golden Loot7.8—5×395%—1,500×
Spear of Fire7.5—5×495%—3,000×
Story of Alice7.5—5×495%—3,000×
Story of Gaia8.0—5×495%—3,000×
Story of Jarptitsa7.5—5×495%—3,000×
Story of Love – Aphrodite's Spell8.0—5×495%—3,000×
Story of Medusa II – The Golden Era7.5—5×495%—3,000×
Story of Medusa II7.5—5×495%—3,000×
Trout's Treasure – Deep Water8.0—5×395%—2,000×
Trout's Treasure – Payday8.0—5×395%—2,000×
Trout's Treasure – Wild Rivers8.0—5×395%—2,000×
Valentine Collection 10E6.9—6×495%—3,000×
Valentine Collection 20E6.9—6×495%—3,000×
Valentine Collection 30E6.9—6×495%—3,000×
Valentine Collection 40E6.9—6×495%—3,000×
Valentine's Fortune6.9—6 reels95%—3,000×
Werewolf – Darkest Flame7.8—5×395%—1,000×
Werewolf – The Becoming7.5—5×495%—3,000×
Werewolf – The Hunt7.9—5×395%Medium1,000×
Wolf Fang – Volcano7.3—5×395%—1,000×

About Spinomenal

Spinomenal holds a B2B licence from the UK Gambling Commission, granted in 2022, alongside its Malta Gaming Authority licence and approvals in Sweden, the Netherlands and Romania. Its catalogue is organised into recurring series: Demi Gods, Lucky Jack, Wolf Fang and a long line of Book of… games.

The company also runs Retro Gaming, a separate label for classic-style slots built on Spinomenal's technology.

The book slots in this catalogue

Several Spinomenal games here share one rule set: the book is both wild and scatter, three or more start 10 free spins, and an expanding symbol can turn scattered hits into wins across every line. The difference is in how that symbol is chosen.

In Book of Lucky Jack – Baba Yaga's Tales and Book of Savannah's Queen a new random symbol is picked for every free spin on a six-reel grid. Book of Medusa uses five reels and spins a wheel once to choose one symbol for the whole round.

Beyond book slots

Gorilla Blast – Hold & Hit 3x3 is a compact collect-and-respin game with four fixed jackpot symbols, while Easter Mayhem mixes instant-cash eggs with a free spins round in which a wild collects them.

Spinomenal games are usually supplied with several RTP settings. Easter Mayhem, for example, is listed at 88.97%, 91.01%, 92.85% and 96.20%, so the figure on each page is a reference rather than a guarantee for a particular casino.

The Majestic wildlife games

Majestic White Rhino, Majestic King and Dark Wolf share one engine: 25 lines, double symbols that count as two of a kind, a free-spins wheel and a tree-collecting multiplier bonus. Their demos run at a 95% RTP, while one catalogue lists 92.16% for White Rhino, so the version a casino uses matters.

Questions about Spinomenal

Is Spinomenal licensed in the UK?

Yes. Spinomenal received a B2B licence from the UK Gambling Commission in 2022. It is also licensed by the Malta Gaming Authority.

What is Retro Gaming?

A Spinomenal studio that makes classic-style slots on Spinomenal's technology. Its games have their own page here.

Do Spinomenal slots have the same RTP everywhere?

Not necessarily. Many of its games come in several RTP settings, and the casino chooses which one to run.

Which Spinomenal series appear here?

Book slots including Book of Lucky Jack and Book of Medusa, Demi Gods 7 Nightfall, Hold & Hit and seasonal games, plus Frozen Fruits – Chase 'N' Win.