Hidden Slot

Progressive: No Jackpot: 215,000 Coins
Reels: 5 Paylines: 178
Coin Values: 0.20 up to 100 Bonus Game: No
Wild Symbol: Yes Multiplier: No
Scatter Symbol: Yes Free Spins: Yes
Released: September 2017 Software: ELK Studios

Hidden Slot


Hidden Slot

General Overview

Hidden is a 178 ways to win online slot by ELK Studios, which came out in Q3 2017. Albeit it has a classic ancient Egyptian theme and is somewhat inspired by the Book of Ra classic, it has a very unique modern feel, and in a good way. The highlights include a jackpot of 215,000 coins, a medium-high variance gameplay, stacked symbols, a random in-game feature and very promising free spins with an expanding symbol to boost your wins even further. More on all that in the full Hidden slot review next.

Features and Bets

Hidden is played like a 20-line game with 20 coins per spin, so the minimum stake is set to 0.20 credits, despite the line count. And like with all ELK Studios slots, the online slot also has Betting Strategies: Optimizer, Leveller, Booster, and Jumper. Use them for betting automation, depending on which style of play and risk level you prefer.

Note that the hit frequency is rather low while the RTP is at 96.3%.

Symbols and Bonuses

The game has 9 regular symbols, including the low pay high playing card values and high pay characters. They all cascade down in stacks, so it’s not rare to fill up the entire reel with just one symbol. Pay-wise, you can win the maximum of between 60 and 1,000 coins for a 5 of a kind, which is not a substantial variance.

The 10th symbol is the Wild, which can substitute for any other except the bonus one. The substitutions can also appear in a cluster but don’t have a coin value as such. Better yet, Hidden has one more surprise when it comes to wild icons, and it’s the Flashback Re-spins feature.

What the Flashback Re-spins do is create up to three wild reels in the middle of the screen, and re-spin the rest for 3 times. But the real spirit of the game comes out during the Treasure Room Free Spins – a feature that can be triggered with three Bonus symbols only.

Inspired by Novomatic’s Book of Ra, the free games bonus has a special expanding symbol. This time, however, it doesn’t expand to the entire reel but clockwise. The feature icon is chosen randomly at the start of the free spins bonus, complementing the other happening that has to do with symbol explosions. More specifically, all non-expanding symbols will then explode and give room for new ones before the start of the next free spin.

All that happens for the duration of at least 5 rounds, although you can also win an additional spin for every Bonus symbol that you catch.


Hidden is ELK Studio’s first ancient Egyptian slot, that’s played with 178 ways to win and 5 reels. This medium variance game presents stacked symbols, a wild feature and a free spins bonus with a special expanding symbol and explosion re-spins, generating wins of up to 215,000 coins.

Click here for a list of all ELK Studios Slots

Posted by CCJ Team

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