It’s a Mystery! Slots
It’s a Mystery! Slots drops you into a sharp detective theme where every spin feels like you’re closing in on the next breakthrough—except the “evidence” comes in the form of winning lines and feature triggers. Built by Real Time Gaming, this 5-reel video slot keeps momentum high with 25 paylines, punchy bonus moments, and the added kick of a progressive element that can turn a solid session into a headline-worthy score.
If you like slots that keep you watching the reels for that one symbol that changes everything, this one is designed to keep you locked in—spin after spin.
The Setup: 5 Reels, 25 Paylines, Zero Confusion
The action plays out across 5 reels with 25 fixed paylines, so you’re always in the game—no fiddling around trying to “find the best line count.” With 1 coin per line, your wager scales cleanly as you adjust coin size, making it easy to control your pace.
The symbol mix blends classic card ranks (10, J, Q, K, A) with character and scene icons like Detective, Gentleman, and Mansion, plus standout game-branded symbols such as It’s a Mystery and the Mystery Magnifying Glass. And when Sherlock Holmes shows up, it just feels like something good is about to happen.
Betting is flexible thanks to a wide range of coin sizes (from low-stakes pennies up to higher denominations), with a max bet of 125 for players who want maximum impact per spin.
Features That Flip the Script (and Your Balance)
This is where the game starts acting like a real case file—one clue leads to another, and suddenly you’re in a feature that can seriously boost your returns.
The Mystery Logo acts as the Scatter, and it’s your primary signal that the next sequence could pay off in a bigger way. When the right combo lands, you can score up to 50 free spins, giving you a long runway to stack wins without increasing your stake each spin.
Two features give the gameplay its “one more spin” energy:
Feature Guarantee Perfect for players who hate long dry stretches. This mechanic helps keep the game from going cold for too long by increasing the sense that a bonus moment is always within reach. It’s the kind of design that keeps your session feeling active instead of grindy.
Portrait Puzzle Feature This one adds a collectible-style layer that makes every qualifying spin feel meaningful. As the portrait builds, you’re not just hoping for a random spike—you’re watching progress develop and anticipating the payoff like you’re putting the final pieces together before the reveal.
Want to check out more games from the studio behind it? Here’s the developer page: Real Time Gaming.
Smart Plays That Keep You in Control
A detective doesn’t blow the whole budget on the first lead—and you shouldn’t either.
If you’re playing for bonus time, start at a comfortable level and give the features room to show up. Because the paylines are fixed, your main control lever is coin size—so you can dial your risk up or down without changing how the game fundamentally behaves.
If you’re chasing bigger hits and the progressive angle is what brought you in, consider moving your bet upward only after you’ve had time to “feel” the volatility. A steady ramp tends to last longer than jumping straight to max. And when free spins land, resist the urge to instantly raise stakes afterward—use the bonus outcome as your checkpoint before deciding your next move.
Ready to Solve Your Next Favorite Slot?
It’s a Mystery! Slots delivers a clean, easy-to-play layout with enough feature firepower to keep every session feeling like it could break open at any moment. Between 25 paylines, Scatter-driven free spins up to 50, and the Portrait Puzzle and Feature Guarantee mechanics pushing the action forward, it’s a strong pick for players who want a theme with personality—and gameplay that doesn’t waste time getting to the good stuff. If you’re in the mood for a slot where the next big reveal could land on any spin, this case is worth reopening.