Hidden Slot
Get 100 Free Spins when You Bet £20
Provider
Type of Slot
Theme
Reels
Paylines
Stakes Range
Bonus Features
Free Spins
Multiplier
Max Win
RTP
Volatility
Hidden Demo
Recommended Casino
3,000+
Up to 24 hours-
United Kingdom (UKGC)
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Hidden Slot RTP, Details & Wager Limits
The Hidden slot game plays out on a 5×4 gaming area with 178 ways to win. To create a win, land 3 or more matching symbols on adjacent reels from left to right.
Stakes range between 20p and £100 per spin at Hidden casinos, around the bracket you’ll find in many new online slots. Tap the casino chips button to adjust your stake, but remember that it can’t exceed £5 at UK Hidden casinos. Moreover, the autoplay function is disabled here.
ELK Studios sets the default Hidden RTP at 96.3%, a touch above average. Still, it won’t trouble the highest RTP slots on the market. In the meantime, the game has medium volatility, meaning the travel to the Egyptian pyramids isn’t particularly risky.
Even so, the Hidden max win of 2,150x the bet is underwhelming, putting the potential payout at just £215,000. From my playtest, the free spins round is really where the game picks up, with a 2×2 expanded symbol on every spin. However, if your eyes are peeled for life-changing payouts, progressive slots might be your best bet.
Hidden Theme—Explore the Pyramids for Artefacts
With a title like Hidden, I initially expected a crime theme, or better yet, something futuristic. Instead, ELK has taken us on an archaeological journey to the Great Pyramids of Giza with historian Professor Taylor and his nephew Benjamin.
Even though ancient Egyptian slots are a dime a dozen, I like that this one steers away from the usual cliches. As a breather, it doesn’t give off a mystical vibe. It’s more of an adventure, backed by sharp and vibrant visuals—quite impressive for a 2017 release.
Another thing that stands out is the intro, which provides a detailed backstory of the professor’s trip to Cairo. However, the soundtrack is quite dull, featuring just cascading water sounds and basic effects on winners. Honestly, you’re better off hitting the mute button.
Here’s what the paytable looks like at UK online casinos:
| Symbols | Payouts/Info |
|---|---|
 10 | 3, 4, or 5 = 0.2, 0.4 or 0.6x the stake |
 J | 3, 4, or 5 = 0.2, 0.4 or 0.6x the stake |
 Q | 3, 4, or 5 = 0.3, 0.6, or 0.9x the stake |
 K | 3, 4, or 5 = 0.3, 0.6, or 0.9x the stake |
 A | 3, 4, or 5 = 0.4, 0.8, or 1.2x the stake |
 Sphinx | 3, 4, or 5 = 0.6, 1.2, or 2x the stake |
 Camel | 3, 4 or 5 = 1, 2, or 3x the stake |
 Benjamin | 3, 4, or 5 = 1.5, 3, or 4.5x the stake |
 Professor Taylor | 3, 4, or 5 = 2.5, 5, or 10x the stake |
 Magnifying Glass (Scatter) | Triggers the Free Spins round |
 Wild | Substitutes for all symbols except the Scatter |
Hidden Mobile Slot
Like most modern free online slots, the Hidden slot converts well on mobile casinos, maintaining the vibrant visuals of the pyramid and explorers. The performance remains consistent, with no lags or stutter in both landscape and portrait modes.
Hidden Bonus Features
When it comes to features, the Hidden slot game offers just a pair—Flashback Respins and Treasure Room Free Spins. It’s a disappointing selection when compared to the top online slot games out there.
Flashback Respins
The Flashback Respins feature is randomly triggered during the base game. You’re awarded 3 respins with reels 2, 3, and 4 covered with sticky wilds, which increases your chances of creating a win.
Treasure Room Free Spins
Landing 3 or more scatters anywhere on the reels triggers the Treasure Room Free Spins feature. At the start of the round, you’ll receive 5 free spins, and 1 of the symbols on the reels is randomly chosen to become an expanding symbol.
Whenever this symbol appears during a free spin, it will expand to create a 2×2 colossal block. All other symbols will disappear to give a second symbol drop, and if you’re lucky enough, another expanding symbol might drop.
Look out for the magnifying glass appearing, as each 1 will give you an additional free spin. To win big, you would need a higher value symbol to be chosen as the expanding symbol.
Hidden Verdict: Great Visuals, but the Gameplay isn’t Exciting Enough
Launching the Hidden demo, I could easily tell it isn’t your everyday Egyptian slot with a mystical tone and cliche ancient elements. Credit to ELK Studios for the archaeological backstory, backed by sharp visuals—it’s hard to believe it was released back in 2017.
However, the game’s appeal doesn’t quite extend beyond its skin. The gameplay feels dull for the most part, offering only 2 features. Don’t get me wrong, the respins with sticky wilds and free spins with expanding symbols are worth chasing, but we’ve seen this same combination countless times.
Besides, the potential win is just 2,150x the bet; it might struggle to attract more modern players. While I’m typically critical of slots with low potential payout, I can’t be too harsh, given that it was first released almost a decade ago.
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Specialising in reviewing online casinos, sportsbooks, and slots, Olamidotun consistently delivers engaging and insightful content. His writing captivates readers, providing a deep understanding of the subject matter. Trusted by enthusiasts and beginners alike, he continually enhances his skills to meet the demands of the evolving online gaming world.
