The Lost Book of Mummy’s Curse: A “Book of” Tomb Trip With Trusty’s Cartoon Charm

The Lost Book of Mummy’s Curse: A “Book of” Tomb Trip With Trusty’s Cartoon Charm

Hacksaw Gaming’s distribution rails have been hosting more partner studios lately — and Trusty Gaming is one of the names leaning hard into mechanics players already know by heart. After outings like Book of Whispers, the studio’s latest Egyptian romp is The Lost Book of Mummy’s Curse: a compact, medium-volatility “Book of” slot that pairs expanding-symbol drama with a lighter, comic-book tomb aesthetic. If you’ve ever lived inside Book of Dead or Legacy of Dead free spins, you’ll recognise the rhythm immediately — this one just wraps it in bandages, big cats, and a sense of humour.

The headline numbers are honest rather than outrageous: a 3,000x max win cap and volatility of 2/5 keep expectations grounded next to ultra-brutal grid games. What you get instead is 96.3% RTP, a 3.72% house edge, a 32.1% hit frequency in published specs, and feature pacing built around one strong bonus round. This is not trying to reinvent the genre; it’s trying to execute the classic book formula cleanly, then add a couple of wrinkles — a giant 3×3 wild moment in the base game and random expanding symbols on ordinary spins — so the corridor between bonuses feels less empty.

The Grid and the Core Loop

The Lost Book of Mummy’s Curse runs on a 5×3 layout with nine fixed paylines. Wins form the old-school way: three or more matching symbols on adjacent reels, reading left to right from the first reel, along one of those lines. Royals and stone tablets handle the low end; stylised animal deities and Egyptian props carry the premium weight. It’s deliberately straightforward — the game wants you thinking about books, scatters, and expansions, not memorising exotic pay shapes.

Betting is built for a wide lobby: stakes typically stretch from €0.10 to €300 per spin depending on jurisdiction and UI caps, which makes the title as comfortable for micro-stakes tourists as it is for players sizing up a 100x bonus buy. Between features, you’re mostly riding medium-variance churn — enough small hits to keep the balance ticking, with the real upside saved for when the book scatter finally commits and the free spins curtain goes up.

Wilds, Giant Wilds, and the “Special Expanding Symbol”

Two mechanics stop the base game from feeling like pure scatter-hunting.

First, the mummy wild substitutes for regular pays to complete lines (it won’t stand in for the book scatter or the active special expanding symbol). Line up five wilds on a payline and you’re looking at a 1,000x stake payout in published paytables — rare, but a genuine jackpot-tier hit if the reels align. More commonly, you’ll notice the giant wild rule: when three wilds land on reels two, three, and four in the same spin, they can merge into a single 3×3 wild block. That’s the kind of visual swing that can turn an ordinary base-game sequence into an instant highlight reel — even before the book opens.

Second — and this is where Trusty nudges away from the strictest “book” orthodoxy — any base-game spin can assign a random regular symbol as that spin’s special expanding symbol. If that symbol contributes to a win, it expands to cover its entire reel before pays are evaluated. It’s not the full “pays anywhere” book bonus logic yet, but it injects volatility between scatters and teaches you how expansions behave before you’re locked into a fixed symbol for all twelve free spins.

The Free Spins Round

Land three or more book scatters anywhere on the grid and you’ll trigger twelve free spins. The scatter isn’t just a gatekeeper — three, four, or five books also pay an instant win (commonly quoted at 5x, 10x, and 15x your bet respectively) on top of launching the feature. Before the round begins, the game randomly selects one paying symbol to act as the fixed special expanding symbol for the entire bonus.

Here’s the classic “Book of” payoff: whenever your chosen symbol contributes to a winning combination, it expands vertically to fill its reel(s). Expanded symbols then pay in addition to ordinary line wins — you’re hunting for premium symbol picks and multiple reels hitting at once, the same tension that made Rich Wilde a household name. Retriggers are on the menu as well: additional scatters during the feature can extend the round with extra free spins (check the paytable for the exact retrigger count in your build — implementations sometimes differ slightly by market).

If you’d rather skip the grind, a feature buy is available at 100x your stake in supported regions, jumping you straight into the twelve-spin book bonus with the same expanding-symbol lottery. Bonus-buy RTP can be fractionally different from base-game math — again, the in-game rules panel is the source of truth.

How It Stacks Up Against the Family

The “book” genre is crowded for a reason: players love one symbol to root for once the bonus starts. Compared to stone-serious tomb slots, The Lost Book of Mummy’s Curse skews brighter and more cartoon-forward — closer in vibe to a Saturday-morning adventure than a grim archaeology documentary. Mechanically, it sits near Book of Dead and Legacy of Dead on the spectrum, but with Trusty’s per-spin random expanders and the 3×3 wild gimmick adding spice in the base game.

On the Hacksaw side of the lobby, Egyptian DNA shows up in very different packages — Wings of Horus chases a darker mythic mood, while Hand of Anubis is an entirely different volatility conversation. If you’re comparing within Trusty’s own catalogue, think of Lost Book as the accessible, medium-volatility book club entry next to whatever ultra-niche experimental titles share the same shelf. The 3,000x ceiling tells you the design isn’t promising modern “max win tourism” numbers; it’s promising familiar beats with a friendlier profile.

Who It’s For

If your idea of a perfect night is Wanted Dead or a Wild chaos or grid-slot multiplier mayhem, this book will feel tame — and that’s by design. The Lost Book of Mummy’s Curse is for players who want recognisable mechanics, medium volatility, and a bonus round where one lucky symbol draw can define the entire session. It’s also a strong match for anyone collecting Hacksaw-distributed partner slots who still wants that classic expanding-symbol free spin arc without signing up for the most punishing math on the market.

Bring the usual book-slot discipline: respect the RTP tier your casino selected, decide in advance whether bonus buys fit your jurisdiction and bankroll rules, and remember that all the romance lives in the free spins. When that special symbol turns out to be a premium and the reels start filling together, The Lost Book of Mummy’s Curse delivers exactly what the cover promises — a curse that’s mostly sweet, occasionally savage, and never pretending to be anything other than a love letter to the genre.