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Hidden Kingdom

Review, Demo Play, Payout, Free Spins & Bonuses

Hidden Kingdom is developed by Caleta Gaming with five reels, three rows and 40 fixed paylines. The RTP is 96.68% and the volatility has not yet been rated. ...

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  • Generous free spins
  • Decent graphics
  • Multipliers
  • Expanded Wild
  • Low max theoretical win
  • Tired theme

Hidden Kingdom Review

The days of the Mayan empire revealed Hidden Kingdoms inside their pyramid temples. Step inside and see if you can uncover the hidden treasure that has been dormant for thousands of years.

This game is free to play in demo mode, which is a great way to try the game before you decide to play for real at an online casino.

Theme, Graphics & Soundtrack

You’re probably quite familiar with the aesthetics of ancient civilizations by now. This game has a background with a pyramid set against a golden sky. It's nice, but there's very little going on.

The game's icons are quite detailed and include a tiger and a toucan, both of which were believed to be integral to Mayan culture.

The soundtrack, like those of most Aztec themed slots, is actually quite good. It features a bouncy beat that fits well with the overall scene and some sound effects that complement rather than overwhelm.

Hidden Kingdom

Hidden Kingdom RTP and Variance

The RTP of Hidden Kingdom is 96.68% and it has an unknown volatility. Keep an eye on your incomings and outgoings. Please also note that the reported RTP varies across the internet; sometimes it appears higher, and in other places, it is listed as being a bit lower.

How to Play Hidden Kingdom

1. On the bottom left side of the screen, there are three dots that will open a menu if you click on them. Use this to view the paytable using the i icon.

2. If you wish to play the game in autoplay mode, use the circular button to the right of the main central Spin button to adjust the number of spins you want to play. Alternatively, you can use the Turbo button to the right.

3. To adjust your total bet amount, you can use the stacked coins icon to the left of the main Spin button to adjust your amount to anywhere between 0.1 and 2000.

4. To start playing, use the large green Spin button in the bottom centre of the screen. Have fun, and remember to play this slot responsibly.

Along the bottom of the screen, you can view your balance amount and win amount on the far left and right of the bottom panel respectively.

Bet Sizes

Hidden Kingdom has a minimum bet of 0.1 and a maximum bet of 2000.

Hidden Kingdom Bonus Features

Wild Warrior

In this Mayan fantasy, the Warrior is the game’s Wild Symbol. He will step in and defend your honour by substituting for any other symbol in the game except the Free Spins symbol and the Bonus.

Wild Expanded

Our handy hero doesn’t just step in to serve up winning combos; he’ll also spread across the reels when he lands anywhere on reels 2 and 4.

Scatter the Free Spins

If you manage to catch three or more Scatter Symbols anywhere on the reels, it will kick off the Free Spins Bonus Feature. The awards are as follows:

  • 5 Free Spins Symbols = 60 Free Spins
  • 4 Free Spins Symbols = 30 Free Spins
  • 3 Free Spins Symbols = 15 Free Spins

During the Free Spins Round, part of the Warrior who appears on the reels will nudge up or down to create a Stacked Wild.

Free Spin Retrigger

Once you’re in the free spins, you might find they never stop! You can retrigger the free spins round while you’re in it, and more can be won again and again.


You’ll also gain Multipliers for placing three, four or five Scatters anywhere on the reels.

  • 5 Scatters = 50x total bet
  • 4 Scatters = 10x total bet
  • 3 Scatters = 1x total bet

Our Verdict

This Aztec themed slot won’t win any prizes for originality. Although it boasts a solid set of features, there’s nothing that elevates it above the rest of the many Aztec slots out there.

However, there are no real weaknesses in the gameplay, the graphics, the soundtrack or the features. It should be noted that the RTP is subject to opinion, however, and there is no guidance on volatility. Yes, the max theoretical win is fairly low, but getting five scatters is by no means unachievable.

If you haven’t played a slot from this genre before, you could do much worse than starting out here.

If you like this game, you should also check out Mayana.


Disclaimer: Hidden Kingdom trademark / license is owned by Caleta Gaming. This site is not endorsed by Caleta Gaming.

Slot Data
Slot Name: Hidden Kingdom
Software: Caleta Gaming
RTP: 96.68%
Paylines: 40
Reels: 5
Min Bet (all lines covered): £0.01 (GBP)
Max Bet: £2000 (GBP)
Top Win: 13
Features: Wild Symbol, Scatter Symbol, Free Spins, Expanding Wilds, 5 Reels
UK Available in UK? No. :maker does not have a UKGC license and cannot offer their games at UK licensed casinos.


What is the RTP of Hidden Kingdom?

The long-term, average expected payout of this game is 96.68%. Keep in mind that this is an aggregated number and your experience may be different.

How volatile is Hidden Kingdom?

Hidden Kingdom by Caleta free slots hasn’t received a volatility rating yet.

What is the biggest win available on Hidden Kingdom?

The max win of this game is x50 your total bet.

Is there a free spins round in Hidden Kingdom?

Yes, there is.

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