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Hidden Slot Review

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How to play Hidden mobile slot

The Great Pyramids of Giza are surrounded by myths and legends, but only the Hidden slot will reveal their deepest secrets.

We love mobile slot games with a good theme, and Elk studios always delivers. Even their 3 reel classic Ivanhoe slot has a storyline.

And because of it, they’ve even managed to make what is a standard Egyptian theme a little more exciting.

All because you get an introduction where Professor Taylor and his nephew Benjamin stumble across an ancient drawing that will lead them to treasure.

Go on a journey where two random bonus awaits

Other than the two characters on screen, this is basically ancient Egypt over huge 5×4 reels that give you 178 ways to win.

There’s no standard wild keeping you company on these Hidden slot reels, just symbols that tumble onto the screen giving you little wins from time to time.

So why did we give it 4 stars? Because we couldn’t go less than 20 spins without randomly triggering one of two bonus free spin features.

The Hidden slot gives you wins in unexpected hidden ways

The Flashback Re-Spins are the ones that you’d think would give you the biggest wins.

Namely because randomly you get transported back in time, and you get anything from 1 to 3 full reel totally wild for all 3 spins.

And sure, we’re sure you can get decent pots, but we generally only experienced around 10x to 20x your wins – which is more than usual for Elk mobile slots.

Because, as the name suggests, it’s the Treasure Room free spins where you’ll find all the action.

Symbols that expand horizontally and vertically

This is where things get interesting, as one symbol is chosen for these 5 free spins to expand to cover a 2×2 space.

So imagine, three symbols in the right spot can cover half of these Hidden game reels.

The trick is to get a King or a Queen symbol, as they are more prolific, so more likely to show up over the screen.

It’s not quite as effective as the scatter expanding pays of the Book of Ra Deluxe slot, or Magic Mirror Deluxe 2 by Merkur.

But it’s far prettier, the wins come more often, and using one of their four betting strategies, you’ll probably walk away at least a little richer.

Game Screenshots

Hidden slot stats

Mobile Slot releasedSeptember 2017
Slot typeVideo Slot
Slot reels / paylines5 Reels / 178 Ways to Win
House edge / RTP3.7% / 96.3%
Slot volatilityMedium/High
Min/Max bet0.20 / 100
Max win215,000
Free spinsStarts at 3 to 5 Free Spins / Sticky Wild Reels or Expanding Symbols
Bonus rounds2 Free Spin Features, Sticky Wilds, Wild Reels, Expanding Symbols
Slot ThemesAdventure & Explorer
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Bonus Features

Treasure Room Free Spins: Three magnifying glasses on any reel positions trigger 5 free spins bonus games.

At this point any one of the symbols on screen will be randomly selected. Every time it shows up on screen, it will expand to cover a 2x2 space, creating big blocks of identical symbols.

The good news is that a single magnifying glass will trigger a further Hidden slot free spin.

So chances are you'll probably play more like 8 free spins.

Flashback Re-spins: Out of nowhere you'll be transported back in time when the pyramids gleam under a dessert sun.

You then get 3 re-spins where you'll get any of reels 1, 3 or 5 fully wild. It could just be one, it could be all three.

Either way, they stay sticky for the entire 3 re-spins.

Hidden Review Conclusion

This Elk Studios Hidden slot on mobile pleasantly surprised us.

Mostly that's thanks to two frequent bonus game features that hit so often, you barely miss the fact that the wins in the base game are few and far between.

Adding a great theme that elevates what could have been a plain Egyptian slot into an adventure game with a little more heart.

Of course, it doesn't have the big wins like in the Valley of the Gods slot game by Yggdrasil, but it's at least a little friendlier on the wallet.

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Review by Lucky Mobile Slots, last updated: March 25, 2021 - Rating 4

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