Wins of Nautilus Megaways Slot Review
Fantasma Games have built a reputation for crafting visually distinctive Megaways releases, and Wins of Nautilus Megaways demonstrates why. This underwater-themed adventure, released in December 2021, combines the proven Megaways mechanic with an array of innovative base game features that set it apart from the overcrowded Megaways landscape. Rather than relying solely on free spins to deliver excitement, the Countdown Bomb system and Respin mechanics inject volatility into standard gameplay, creating a slot that rewards patience and strategic stake management.
Base Game & Features
Wins of Nautilus Megaways plays across 6 main reels plus 1 top sliding reel, generating up to 117,649 ways to win—the full power of the Megaways mechanic combined with an avalanche system. Each winning combination triggers the avalanche feature: winning symbols disappear, remaining symbols slide left, and new symbols cascade down to fill empty spaces. This creates cascading wins that can multiply throughout a single spin, driving both excitement and win potential.
Countdown Bomb Feature
The Countdown Bomb is Fantasma’s signature innovation on this release. Bomb symbols appear randomly on reels 2-5 during any spin, each carrying a counter value between 1 and 4. With each avalanche that cascades through the reels, the counter decreases by one. When the counter reaches zero, the Bomb explodes to create a Full Reel Wild on that reel, with a multiplier equal to 2x the starting counter value. When two or more Bombs explode in the same avalanche sequence, they combine their multipliers, creating potential for stacked wild multipliers that can dramatically amplify winning combinations. This feature transforms base game play from simple symbol matching into a tactical puzzle where you’re hoping for avalanches to trigger the Bombs while building toward their explosive multiplier payoff.
Full Reel Wilds
Full Reel Wild symbols are created exclusively by the Countdown Bomb explosion mechanic (they don’t appear through any other trigger). These wilds expand to cover entire reels on positions 2-5. The key mechanic here is multiplier stacking: when two or more Full Reel Wilds land in the same winning combination, their multipliers multiply together rather than add together. A 4x multiplier wild combined with a 2x multiplier wild creates 8x total—meaningful uplifts in win potential that make triggering multiple Bombs during cascades highly valuable.
Respin Feature
Respin symbols appear on reels 2-5 and trigger whenever one or more land on any spin. When activated, the Respin feature removes itself and 2-10 random non-winning symbols from the reels, immediately triggering a fresh avalanche. This clears the board of clutter and creates immediate win potential on the fresh cascade. Crucially, each avalanche that follows also decreases any active Countdown Bombs by one counter value, making Respins valuable for accelerating the Bomb countdown toward their explosive multiplier payoff. It’s a feature that ties directly into the Countdown Bomb system, creating mechanical synergy between the two.
Wins of Nautilus Megaways Free Spins
The bonus round in Wins of Nautilus Megaways is triggered through a collection mechanic rather than a traditional 3-symbol scatter landing. During normal play, scatter symbols accumulate on a dedicated Bonus Meter as avalanches cascade through the reels. Collect 3 or more scatter symbols on this meter, and you’ll trigger the Deep Sea Free Spins bonus round. The base award is 12 free spins, with each additional scatter symbol adding 5 more spins to your total—land 5 scatters and you start with 22 spins.
What makes the bonus round distinctive is the unlimited progressive win multiplier. Your multiplier begins at 1x, and crucially, it increases by +1 after every avalanche win during free spins. This creates a meaningful arc to the bonus round: early spins land lower wins but accelerate your multiplier, whilst later spins in the feature benefit from higher multiplier values stacked on top of the Countdown Bomb and Full Reel Wild mechanics still active throughout the round. This multiplier has no upper limit, meaning a long enough free spins sequence can generate truly substantial returns.
Retrigger the feature by collecting 3 or more additional scatter symbols during free spins, and you’ll award 12+ extra spins depending on how many scatters land. All base game features—Countdown Bombs, Full Reel Wilds, and the Respin mechanic—remain fully active during free spins, meaning the bonus round is mechanically identical to base play but with the additional multiplier layer accelerating all wins.
Bonus Buy Feature
For non-UK players and eligible regions, Fantasma offer a Bonus Buy option accessible through the in-game menu. Purchasing the feature costs 60x your total stake and guarantees at least 3 scatter symbols on the very next spin, instantly triggering the Deep Sea Free Spins bonus. When you use Bonus Buy, the theoretical RTP increases to 97% compared to the base 96.1%, making it a viable option for players seeking higher theoretical returns in exchange for an upfront cost.
Our Honest Verdict
Wins of Nautilus Megaways stands out from the Megaways crowd precisely because it doesn’t rely exclusively on the bonus round for entertainment value. The Countdown Bomb system injects genuine strategic depth into base gameplay—watching bombs tick down through avalanches toward their multiplier explosions creates anticipation across both regular and feature rounds. Combined with high volatility (30.76% hit frequency) and a 10,000x maximum win potential, the game delivers the mechanics that define a substantive slot experience.
The Fantasma design team deserves credit for the underwater Jules Verne aesthetic—the steampunk-inspired Nautilus theme is visually cohesive and well-executed, even if some players might wish the steampunk elements had been taken further for added immersion. The unlimited progressive multiplier during free spins is a genuine differentiator that separates this from more conventional Megaways offerings.
That said, the game isn’t without limitations. Double wild combinations and the highest multiplier stacks materialise less frequently than you might expect during base play, meaning the gameplay experience feels more conventional between feature triggers than the innovative base mechanics might suggest. Players seeking consistently explosive base game action across every spin might find the pacing less eventful than anticipated.
For high volatility chasers seeking genuine big win potential (10,000x genuinely achievable through the free spins multiplier), Wins of Nautilus Megaways represents a solid, well-made option that rewards patience and significant stake commitment. It’s not a cutting-edge experimental release, but rather a polished implementation of proven mechanics with enough innovation to justify testing. The 96.1% RTP (97% with Bonus Buy) offers decent theoretical returns, and the mechanics perform smoothly in practice.
Wins of Nautilus Megaways FAQs
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What is the RTP of Wins of Nautilus Megaways?
The RTP of Wins of Nautilus Megaways is 96.1%, with 69.59% going to the base game and 26.51% to free spins. If you purchase the bonus round, the theoretical returns increase to 97%. -
What is the maximum win in Wins of Nautilus Megaways?
You can win up to 10,000 times your stake in Wins of Nautilus Megaways, with the max cash payout capped at £250,000. The bonus round features an unlimited progressive win multiplier that increases by +1 per Avalanche win, creating potential for truly substantial returns. -
How volatile is Wins of Nautilus Megaways?
Wins of Nautilus Megaways is a high volatility slot game, which means wins are less frequent but larger when they land. The hit frequency is 30.76%, making for fairly eventful gameplay where wins arrive regularly enough to maintain engagement. -
What are the main bonus features in Wins of Nautilus Megaways?
The game includes several bonus features: Avalanche mechanics (cascading wins), Countdown Bombs (that tick down and provide Full Reel Wild multipliers), the Respin Feature (which removes up to 10 symbols and triggers fresh avalanches), and an unlimited progressive win multiplier in the bonus round that increases by +1 per Avalanche win. -
How are free spins triggered in Wins of Nautilus Megaways?
Free spins are triggered by collecting 3 or more scatter symbols on the Bonus Meter during an Avalanche sequence, awarding 12 Deep Sea Free Spins. Each additional scatter symbol adds +5 free spins. You can retrigger the feature with 12+ extra spins by landing 3+ scatters during free spins. -
Can you buy the bonus round in Wins of Nautilus Megaways?
Yes, non-UK players and anyone eligible can purchase the bonus round for 60x the total stake via the in-game Bonus Buy menu. Purchasing the bonus round guarantees at least 3 scatter symbols on the next spin. -
What Megaways configuration does Wins of Nautilus Megaways have?
Wins of Nautilus Megaways plays on 6 reels plus 1 top sliding reel with up to 117,649 ways to win. The game uses the Megaways mechanic combined with an Avalanche feature where winning symbols are replaced with new ones. -
What is the bet range in Wins of Nautilus Megaways?
The bet range in Wins of Nautilus Megaways is from £0.20 to £20 per spin, allowing both casual players and high rollers to enjoy the game and chase the impressive 10,000x maximum win.
