Hidden Slot Machine Review

ELK Studio unveils a mystery buried in time, and its Hidden slot offers exceptional play inspired by flashbacks of Ancient Egypt. Hidden is based on Benjamin, nephew of Professor Taylor as they leave London to enjoy an exotic adventure. Determined to solve the Great Pyramid mystery players are invited to join the venture where endless winnings are part of the dazzling ride in time, winnings worth up to 215,000 coins can be generated across 178 ways to win.

Ancient Egypt, Adventure
Elk Studios
Nr. of Reels:
Nr. of Rows:
Winning Lines:
Bet Limits:
[€0.20 - €100]
Wild Symbol:
"Wild" - appears on reels 2, 3, 4 and substitutes for all symbols except Scatter
Wild Features:
Sticky Wilds
Scatter Symbol:
"Magnifying glass" symbol
Bonus Spins:
Game Features:
Connecting paylines with Exploding and Disappearing symbols; Treasure Room Bonus Rounds with Expanding symbols and Extra Spins; Flashback Respins with Sticky Wilds
Reel Features:
Sticky Wild Reels
Game Payout:
Auto Play:
Yes (Auto Spin)
Turbo Play:
Yes (Quick Play)
Release Date:
Sep, 2017

Play Hidden Slot Machine for Real Money at Elk Studios Online Casinos

Players from the United States are NOT Accepted

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Welcome Bonus:
Bonus Percentage:
Age Requirements:
Players from the United States are Accepted

Hidden Slot Bonus Features

Bonus discoveries part of the adventure exceed all expectations and travellers are showered with additional winnings from the treasure room bonus spins round, flashback respins, sticky wild reels, re-spins, while three betting strategies increase players chances of winning across 178 ways to win.

Substituting Hidden Wild Symbols

Wild symbols appear on the second, third and fourth reels to stand in for all apart from the bonus symbol represented by the magnifier glass. The magnifier glass appears exclusively on reels 2, 3 and 4 to activate the treasure room bonus spins bonus game, provided three are visible simultaneously.

Hidden Treasure Room Bonus Spins Rounds

A minimum of three magnifier glasses are needed to find the way to plenty of bonus game spins, the round starts off via five bonus spins and every magnifier glass that appears during the bonus round adds an additional spin. Upon entering the treasure room a symbol is randomly selected to represents the expanding symbol.

Expansion takes place once payouts are awarded, and non-expanding symbols are removed, other symbols take their place and should more expanded symbols come into play winnings are re-calculated. All occurrences by the randomly selected symbols are enhanced by the clockwise expansion of 2 x 2 during every spin.

Flashback Respins

During main play, the flashback respins can trigger at random, and up to three of the centre reels can be covered in sticky wilds. Once reels are covered in sticky wilds, they remain in place for three respins, while the wild reels substitute for all symbols apart from the scattered magnifier glass symbols.


Hidden slot excites with several unique features and players hugely benefit from the expanding symbols during the bonus spins round that offers a second symbol space allowing an endless stream of winning to occur. Once wild reels appear on the second, third and fourth reels extraordinary winnings are almost guaranteed. Hidden can be played in two different modes including the bonus mode with bonus game spins or the normal mode. Offering maximum wins worth up to 215,000 coins, Hidden Slot also provides players with different betting strategies including the optimizer for casual players, leveller, jumper, optimizer and the booster perfect for high rollers.