Step into the world of Museum Mystery, an enchanting slot game by PG Soft where ancient relics meet modern mechanics. Every spin leads you deeper into the museum’s echoing halls, revealing priceless treasures and hidden secrets. This 5-reel masterpiece features 4 rows on reels 1 and 5 and 6 rows on reels 2, 3, and 4, giving players up to 3,456 ways to win.
With a 96.71% RTP, high volatility, and a maximum win of 5,000x your bet, this slot blends art, history, and excitement into one extraordinary adventure. Each spin offers the chance for cascading wins, multipliers, and Free Spins teeming with Mystery Symbols that can turn ordinary combinations into dazzling payouts.

Story Background of Museum Mystery
Under the moonlit roof of a grand, centuries-old museum lies a realm of hidden wonders. When the clock strikes midnight, the exhibits awaken: stone guardians whisper ancient names, and artifacts begin to glow with supernatural energy.
You are the chosen explorer, drawn to unlock the secrets sealed within each artifact. As reels spin, relics reveal stories untold and fortunes unfathomed, turning every win into the discovery of a lost civilization.
Curiosity is your greatest compass. Step quietly through the corridors and let each spin guide you toward the museum’s ultimate secret.

Discover more immersive PG slots at our PG Slot Demo Lobby — play free, review, and explore before you dive in.
PG Museum Mystery Game Features
This slot is built around precision and suspense, merging elegant visuals with impactful multipliers. The core experience centers on the Mystery Symbol Multiplier mechanic and an engaging Free Spins round that can escalate payouts quickly.
Mystery Symbol with x2 Multiplier
During any spin, Mystery Symbols may appear on reels 2, 3, or 4, each concealing a randomly chosen regular symbol (excluding Scatters) and applying a 2x multiplier.
When a Mystery Symbol contributes to a win, the total payout for that round is multiplied by the combined multiplier value of all Mystery Symbols involved. The multiplier remains active through cascading wins within the same spin, allowing chains of prizes to grow far beyond the initial hit.

Free Spins Feature
Landing 3 Scatter symbols anywhere on the reels awards 3x your bet amount and triggers the Free Spins Feature with 10 free spins. Each additional Scatter symbol grants an extra 2x bet reward before the feature begins.
At the start of every free spin, a new Mystery Symbol is placed randomly on reels 2, 3, or 4. By the 10th spin, all nine positions on these reels can be occupied by Mystery Symbols, covering the center of the grid with potential multipliers. Multipliers from previous winning Mystery Symbols remain active until the Free Spins round ends, making it possible to stack powerful boosts over multiple spins.

Maximum Win Multiplier
The theoretical maximum payout is 5,000x the player’s bet. If this cap is reached, the current spin ends immediately, ensuring fairness and stability in long-term play.
Feature Buy
For players who prefer instant action, the Feature Buy option offers direct entry into the Free Spins Feature at a listed price. This allows immediate access to full Mystery Symbol gameplay without waiting for Scatter triggers in the base game.
Symbol Payout
- Wild Symbol: Appears on reels 2, 3, 4, and 5, substituting for all symbols except Scatter.
- Scatter Symbol: Awards 3x total bet and triggers 10 free spins when 3 land anywhere on the reels.
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Scatter Symbol | ![]() |
Wild Symbol |
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5 50 4 30 3 15 |
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5 25 4 15 3 10 |
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5 25 4 15 3 10 |
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5 15 4 8 3 5 |
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5 15 4 8 3 5 |
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5 15 4 8 3 5 |
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5 10 4 5 3 3 |
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5 10 4 5 3 3 |
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5 10 4 5 3 3 |
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5 5 4 3 3 2 |
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5 5 4 3 3 2 |
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5 5 4 3 3 2 |
Museum Mystery Strategy Guide
To get the best out of this high-volatility slot, it helps to read how its multipliers develop across cascades and Free Spins rather than relying on generic betting patterns.
- Capitalize on early Mystery Symbol builds.
In the base game, watch how often Mystery Symbols land on reels 2–4. When they show up in several spins close together, slightly increasing your wager can help you ride sequences where 2x multipliers are more actively involved in wins. - Trigger Free Spins naturally before buying the feature.
While Feature Buy is tempting, the base game can already generate strong multiplier momentum. Aim to unlock Free Spins through regular Scatters when Mystery Symbols have been appearing frequently, then reserve Feature Buy for sessions where the base game feels cold but you still want bonus exposure. - Time your expectations around spins 6–10 in Free Spins.
Because one Mystery Symbol is added at the start of every free spin, the layout becomes significantly more powerful in the later half of the round. The final few spins often deliver the biggest hits, as multiple 2x multipliers can overlap and apply to the same winning combinations. - Let cascades build multipliers before raising stakes.
When you see several collapses happen in a single spin, you know the engine is creating multiple connection points. Use these moments to assess whether to adjust your bet size on subsequent spins, rather than ramping up stakes blindly every few rounds. - Segment your bankroll to respect volatility.
Break your balance into several equal parts and treat each as a mini-session. Increase your bet only after scoring wins of around 10x or more, which helps protect you from long dry spells while keeping you in the game to catch those rare, high-multiplier chains that this title can produce.
Free Play Demo:
Museum Mystery FAQ
Q1: What is the RTP of Museum Mystery?
The return-to-player rate is 96.71%, as specified in the official game information.
Q2: How many ways to win are available?
This slot offers between 432 and 3,456 ways to win, depending on the reel configuration during play.
Q3: What is the maximum win?
The maximum advertised win is 5,000x the bet amount.
Q4: How can Free Spins be triggered?
Free Spins activate when 3 Scatter symbols land anywhere on the reels, awarding 10 free spins plus an initial 3x bet payout, with extra Scatters adding more bet multipliers.
Q5: Is there a Feature Buy option?
Yes. Players can instantly purchase the Free Spins Feature through the Feature Buy menu, subject to availability at their chosen casino.
If you enjoy games that reward both patience and bold decisions, this title is built for you. Its blend of cascading reels, x2 Mystery multipliers, and growing Free Spins potential creates a rhythm that can swing from quiet exploration to explosive wins in a heartbeat.
Embark on your treasure hunt today — spin through PG Soft’s beautifully crafted Museum Mystery at Midori Online and see if you can unlock the museum’s most valuable secret.
Chinese version: Museum Mystery




















