Slots Like Book of Oz: Four Games and the Sequel That Dropped the Name
When Play’n GO’s Book of Dead became the most copied slot in Britain, every studio needed a book game, and Book of Oz, built by Triple Edge Studios exclusively for Microgaming (whose catalogue now trades as Games Global), remains the sharpest of those answers because it added something the Play’n GO books never had: the option to pay for a respin of any single reel. If you’re hunting slots like Book of Oz, this guide covers the full family, four games, not the two most lists mention, because one sequel dropped the “Book of” branding entirely, from the studio that also builds the modern Lara Croft slots.
Where to Play Book of Oz Slots
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Reviewed by Brian TaylorPublished: August 2026
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Every Book of Oz version, side by side
All four are Triple Edge Studios games on 5×3 reels with 10 win lines, figures checked 12 July 2026 against the studio’s own pages:
| Game | Year | RTP | Volatility | Max win |
|---|---|---|---|---|
| Book of Oz | 2018 | 96.31% (96.50% with paid respins) | Very high | 5,000x |
| Book of Oz Lock ’N Spin | 2019 | 96.35% (96.60% with the feature) | Very high | 5,000x |
| Legacy of Oz | 2021 | 96.11% | Very high | 5,000x per launch coverage |
| Book of Oz Magic 5 Power Combo | 2026 | 96.06% | High | 5,495x per reviewers |
RTP and volatility figures come straight from Triple Edge’s own game pages. The two max-win figures the studio doesn’t publish are marked with their actual sources rather than presented as official.
The four games, reviewed one by one
1. Book of Oz
Released in December 2018, the original lays out the book formula faithfully, the Wizard’s Book acts as both wild and scatter, three or more books award free spins (up to 25 on a full five-scatter landing), and a randomly chosen symbol expands to cover whole reels during the round, with retriggers possible. The twist is the Respin button: after any spin you can pay to re-spin one reel of your choice, priced dynamically by what it might complete, which turns near-misses into a genuine decision rather than a shrug. Triple Edge’s own page lists 96.31% RTP rising to 96.50% when the paid respin is used, very high volatility, and free-spins wins of up to 5,000x your bet.
2. Book of Oz Lock ’N Spin
The 2019 follow-up, announced by Microgaming that September as “a modern classic,” upgrades the respin idea from one reel to a proper toolkit: lock any one to four reels in place and pay to re-spin the rest, so a four-book near-miss can be chased directly. Free spins add a 2nd Chance feature, one free upgrade of your expanding symbol if the round starts with a low-payer. The studio’s own figures are a touch better than the original’s: 96.35% base RTP, 96.60% when the Lock ’N Spin feature is in play, the same very high volatility and the same 5,000x ceiling. Among players who like driving the game rather than riding it, this is the family favourite.
3. Legacy of Oz
Here’s the entry the roundups miss, for an understandable reason: the July 2021 release dropped “Book of” from its name. It is nonetheless the same series, Triple Edge’s own page introduces it as building on “our previous Oz games” and specifically on Book of Oz’s expanding-symbol free spins, and launch coverage repeatedly described it as the third Oz title. The respin mechanic returns branded as HyperSpins, individual reel respins under your control, alongside free spins with expanding symbol wins. Official RTP is 96.11%, very high volatility, with the familiar 5,000x maximum quoted across launch coverage rather than on the studio page itself.
4. Book of Oz Magic 5 Power Combo
Released 29 January 2026, the newest entry reframes the series around progression instead of respins. Five “Power Combo” modifiers, a Wizard multiplier climbing to 10x, a jackpot feature, cash prizes, extra wilds and spins, and a Reel Grow feature that stretches the grid from 5×3 up to 5×8, unlock in order as you play and stay unlocked, then fire together in free spins. The four Sisters of Oz from the wider Games Global universe make cameo appearances in the artwork. Triple Edge lists 96.06% RTP and high (rather than very high) volatility; the studio page publishes no maximum, with reviewers reporting a 5,495x ceiling. Notably absent: any paid respin, the first family entry without one.
The hidden sequel: why Legacy of Oz counts
Slot franchises usually guard their branding jealously, which is what makes Legacy of Oz such an odd duck, a direct continuation that walked away from the series’ own name. The evidence for counting it is primary, not speculative: Triple Edge’s official page frames it as the successor to its previous Oz games and to Book of Oz’s signature free spins, and the 2021 trade press called it the series’ third title outright. The practical consequence is that anyone searching the family by name finds three games and stops. If you’ve played and liked either Book of Oz proper, Legacy of Oz is the missing middle chapter, same 5×3 grid, same 10 lines, same respin philosophy under the HyperSpins name.
Book of Oz: quick facts
| Provider | Triple Edge Studios, exclusively for Microgaming, now distributed by Games Global |
|---|---|
| First released | December 2018 |
| Layout | 5 reels × 3 rows, 10 win lines |
| RTP | 96.31% base; 96.50% when the paid respin is used (studio’s own figures) |
| Volatility | Very high (studio’s own rating) |
| Max win | Up to 5,000x, in free spins |
| Signature feature | Paid single-reel respins, priced by what the reel might complete, plus book-standard expanding-symbol free spins |
✓ Facts checked 12 July 2026
The maths: paying for respins actually raises the RTP
What a hundred £1 spins costs at each game’s official RTP:
| Build | House edge | £1 × 100 spins |
|---|---|---|
| Lock ’N Spin, feature in use (96.60%) | 3.40% | £3.40 |
| Book of Oz, respins in use (96.50%) | 3.50% | £3.50 |
| Lock ’N Spin, base (96.35%) | 3.65% | £3.65 |
| Book of Oz, base (96.31%) | 3.69% | £3.69 |
| Legacy of Oz (96.11%) | 3.89% | £3.89 |
| Magic 5 Power Combo (96.06%) | 3.94% | £3.94 |
✓ Calculated from Triple Edge’s published RTPs, checked 12 July 2026
The quirk worth understanding: in most slots, side features are where the house quietly wins more. Here it’s inverted, Triple Edge’s own pages show the respin builds returning more than base play, because respin pricing is set against genuine completion odds. It’s also visible that the family’s maths has drifted gently downward with each release since 2019. Session tools live on our Responsible Gambling page.
History and legacy
Book of Oz arrived in December 2018, two years into Book of Dead’s ascent, as part of Microgaming’s then-new strategy of commissioning exclusive content from independent partner studios rather than building everything in-house. Triple Edge Studios delivered a book slot with a genuinely original wrinkle in the paid respin, followed it within a year with Lock ’N Spin’s multi-reel version, then spent 2021’s Legacy of Oz refining the idea under the HyperSpins name. The corporate backdrop changed around the series, Microgaming sold its distribution arm to Games Global in May 2022, but the partner-studio model this family helped prove is now how the whole catalogue works, from Gameburger’s 9 Masks of Fire to Triple Edge’s own Lara Croft titles. January 2026’s Magic 5 Power Combo shows the series bending toward the industry’s current obsession with unlockable modifiers, and, tellingly, leaving the respin behind.
Why this family still matters
Every book slot promises the same free spins; this is the one family that gave you tools to chase them. The paid respin remains one of the few genuinely player-facing innovations the book genre has produced since Novomatic invented it.
Beyond the reels
All the family’s UK-relevant entries are easy to find: Book of Oz and Lock ’N Spin hold live game pages at 32Red and LeoVegas UK (checked 12 July 2026), and Magic 5 Power Combo is rolling out across Games Global’s operator network following its January 2026 launch. Legacy of Oz has patchier UK shelf presence, searching a lobby for “Oz” rather than “Book” is the reliable way to surface it. Games Global Operations Limited holds an active UK Gambling Commission supplier licence, and Triple Edge’s games reach UK players through that distribution.
What players say
The respin economy dominates player discussion of this family, and opinion genuinely splits. Fans describe Lock ’N Spin as the thinking player’s book slot, locking four reels on a book near-miss and paying for the fifth is a rush no Play’n GO title offers, while critics point out the same feature makes it dangerously easy to spend triple a normal stake chasing a trigger that never lands. The original gets played as the purer of the two, and early Magic 5 chatter centres on the Reel Grow feature, with some regulars openly missing the respin button.
Ceilings and the missing record book
Nobody has attached a named, dated, independently confirmed record win to any of these four games, a common situation for mid-catalogue titles, and we’d rather say so than launder a forum anecdote into a statistic. What the record book does hold: 5,000x is the studio-stated ceiling on the first two entries, launch coverage applies the same figure to Legacy of Oz, and reviewers put Magic 5 Power Combo slightly higher at 5,495x. In a genre where Legacy of Dead tops out at the same 5,000x, the family’s ceilings are exactly par for the book course.
Picking between the four Oz games
| If you want… | Play | Why |
|---|---|---|
| The purest book-plus-respin formula | Book of Oz | The original mechanic, one reel at a time, 96.31 to 96.50% RTP |
| Maximum control over your near-misses | Lock ’N Spin | Lock up to four reels; the family’s best official RTP at 96.60% in-feature |
| The overlooked middle chapter | Legacy of Oz | HyperSpins respins plus the familiar free spins, minus the crowds |
| Modern progression systems | Magic 5 Power Combo | Five unlockable modifiers and a grid that grows to 5×8 |
Where Oz sits in the book-slot wars
The book genre has an ancestor, a king and a crowd. Novomatic’s Book of Ra invented the expanding-symbol free spins; Play’n GO’s Book of Dead perfected and popularised them; and our three-way book battle covers how those heavyweights differ. Book of Oz’s claim to a seat at that table isn’t theme or maths. It’s being the only major book family where you can intervene mid-spin. Play a Play’n GO book and a near-miss is the end of the story; play an Oz title and it’s a price quote.
The closest book slots like Book of Oz from other studios
None of these are Oz titles, they’re the cross-studio games sharing this family’s defining trait: expanding-symbol free spins triggered by a book that plays wild and scatter at once. Ordered by how close the whole package sits to Book of Oz. Published RTPs vary by operator build; “operator unchecked” means the supplier’s GB registration was verified but not a specific lobby listing.
| Alternative | Studio | Year | Shared mechanic | Theme | RTP | Volatility | Max win | Why it is close | Important difference | UK availability and evidence |
|---|---|---|---|---|---|---|---|---|---|---|
| Book of Dead | Play’n GO | 2016 | Expanding-symbol free spins from a book wild/scatter | Egyptian explorer | 96.21% default; reduced builds exist down to 84.18% | High | 5,000x | The game Book of Oz was built to answer, identical grid, lines, ceiling and free-spins skeleton | No respin of any kind; the RTP never moves in your favour mid-session | Supplier registration verified; operator lobby unchecked (12 Jul 2026). Play’n GO official game page; UKGC account 55949 |
| Legacy of Dead | Play’n GO | 2020 | Expanding symbols that stack, up to nine at once across retriggers | Egyptian tomb | 96.58% (reduced builds down to 84.55%) | High | 5,000x | The best headline RTP among the big Play’n GO books, the value pick if respins don’t tempt you | Its edge builds through retriggered stacking, not through any mid-spin decision | Supplier registration verified; operator lobby unchecked (12 Jul 2026). Play’n GO official game page; UKGC account 55949 |
| Book of Ra Deluxe | Novomatic (Greentube) | 2008 | The original expanding-symbol free spins | Egyptian archaeology | 94.26 to 95.50% (source-dependent, as our guide details) | High | 5,000x | The genre’s ancestor, every mechanic in the Oz family descends from this game | Noticeably weaker RTP than any Oz entry, and UK availability is thinner than its fame suggests | Supplier registration verified; operator lobby unchecked (12 Jul 2026). Novomatic publishes no public per-game spec pages, figures from our own Book of Ra guide’s research. Novomatic corporate site; UKGC account 45352 (NOVOMATIC AG) |
| Book of 99 | Relax Gaming | 2021 | Expanding-symbol free spins plus a 99-book collection meter | Greek mythology | 99%, the highest published RTP in the genre | High | 12,075x | The only book slot whose maths beats even Lock ’N Spin’s in-feature figure, by a distance | The stellar RTP partly reflects wins banked toward the collection meter rather than paid instantly | Supplier registration verified; operator lobby unchecked (12 Jul 2026). Relax Gaming official game page; UKGC account 37462 |
| Eye of Horus | Reel Time Gaming, via Blueprint in the UK | Mid-2010s online, from Merkur cabinets | Free spins where expanding Horus wilds upgrade every symbol | Egyptian gods | 95.98% | Medium, high | Not officially published | Britain’s pub-and-arcade favourite take on the book formula, with a gentler volatility band than any Oz game | Symbols upgrade rather than expand on their own; no respins, no symbol choice | Supplier registration verified; operator lobby unchecked (12 Jul 2026). Blueprint official game page; UKGC account 6516 (Blueprint Gaming) |
| Book of Shadows | Nolimit City | 2020 | Expanding-symbol free spins plus Lucky Locks, paid column-freeze respins | Occult / gothic | 96.01% | Extreme (studio’s own rating) | 30,338x | The only other book slot with a paid lock-and-respin mechanic, mechanically the truest cousin of Lock ’N Spin | Far nastier variance and a grid you can pay to reshape from 5×3 to 5×5; a different intensity class altogether | Supplier registration verified; operator lobby unchecked (12 Jul 2026). Nolimit City official game page; UKGC account 52097 |
| John Hunter and the Book of Tut | Pragmatic Play | 2020 | Expanding-symbol free spins with unlimited retriggers | Egyptian expedition | 96.50% top build | High | 5,500x | Pragmatic’s entry in the same post-Book-of-Dead wave that produced Book of Oz, with a marginally higher ceiling | Part of the sprawling John Hunter series rather than a book-first family; no respin tools | Supplier registration verified; operator lobby unchecked (12 Jul 2026). Pragmatic Play official game page; UKGC account 56015 |
| Cat Wilde and the Doom of Dead | Play’n GO | 2020 | Book-standard expanding wilds and free spins | Egyptian, Rich Wilde’s daughter | 96.29% (reduced tiers down to 84.26%) | High | 5,000x | The freshest character take on the exact formula Book of Oz reskinned into Oz | Charm over innovation, nothing here you can’t get in Book of Dead itself | Supplier registration verified; operator lobby unchecked (12 Jul 2026). Play’n GO official game page; UKGC account 55949 |
| Scroll of Dead | Play’n GO | 2021 | Expanding-symbol free spins on a grid that grows to 6×3 | Egyptian scrolls | 96.28% | High | 7,500x | Its growing grid anticipates exactly what Magic 5 Power Combo’s Reel Grow feature now does for the Oz family | The expansion is feature-driven rather than a persistent unlockable, and there’s no respin economy | Supplier registration verified; operator lobby unchecked (12 Jul 2026). Play’n GO official game page; UKGC account 55949 |
Evidence status is row-specific. A GB supplier licence does not guarantee a specific casino carries a specific build today, the game’s own help screen is the final authority on the RTP you’re actually playing.
Our verdict on Book of Oz
SlotsLike score: 8/10, the book slot for people who want a say in how the spin ends.
| Features | 8/10, the respin economy is a genuine invention; Magic 5’s unlock ladder keeps the family current |
|---|---|
| Win potential | 6/10, 5,000x, 5,495x ceilings are book-genre par, nothing more |
| Design | 7/10, the Emerald City art has aged gracefully, and Magic 5 is genuinely lush |
| Playability | 8/10, respin pricing gives sessions a decision layer most book slots simply lack |
Play here if you love the book format but want tools to chase a near-miss instead of watching it go. Look elsewhere if pure maths is your criterion, Book of 99’s 99% and Legacy of Dead’s 96.58% both beat this family’s base figures.
Book of Oz FAQs
Who makes Book of Oz?
Triple Edge Studios, working exclusively with Microgaming, the catalogue is distributed by Games Global since 2022. The same studio builds the modern Lara Croft slots.
How many Book of Oz games are there?
Four in the series: Book of Oz (2018), Book of Oz Lock ’N Spin (2019), Legacy of Oz (2021), which dropped the “Book of” branding, and Book of Oz Magic 5 Power Combo (2026).
Is Legacy of Oz really part of the family?
Yes. Triple Edge’s own page presents it as building on its previous Oz games and on Book of Oz’s expanding-symbol free spins, and launch coverage described it as the series’ third title.
What is the RTP of Book of Oz?
96.31% in base play, rising to 96.50% when the paid respin feature is used, both figures from Triple Edge’s own game page.
How does the respin feature work?
After any spin you can pay to re-spin a single reel (or lock one to four reels and re-spin the rest, in Lock ’N Spin). The price adjusts dynamically to what the respin could complete, chasing a fifth book costs more than chasing a low-pair.
How is Book of Oz different from Book of Dead?
Same skeleton, 5×3, 10 lines, expanding-symbol free spins, 5,000x ceiling, but Book of Oz adds paid respins and slightly different RTP economics; Book of Dead offers no mid-spin intervention at all.
What is the max win in this family?
5,000x on the first three entries (the studio confirms it for the two Book of Oz titles; launch coverage applies it to Legacy of Oz), and 5,495x on Magic 5 Power Combo per reviewers, Triple Edge doesn’t publish that last figure itself.
Can UK players get the bonus-buy or respin features?
Respins and Lock ’N Spin are available to UK players, they’re priced respins, not bonus buys, and aren’t caught by the UK’s feature-buy restrictions.
Sources & Verification
Primary sources checked 12 July 2026: Triple Edge Studios’ own game pages for Book of Oz, Book of Oz Lock ’N Spin, Legacy of Oz and Book of Oz Magic 5 Power Combo; Microgaming’s September 2019 Lock ’N Spin launch announcement; live UK operator lobbies at 32Red and LeoVegas for availability; and the UK Gambling Commission’s public register (Games Global Operations Limited, account 58841).