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Crystal Skull Slot - Review, Free & Demo Play

Crystal Skull
Crystal Skull
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Updated: 22.07.2025
Reviewed by: Ella Houghton

Join the brave antiquities explorer in Crystal Skull by Endorphina, which is a game of 22/11/2022. In this slot, you will go in search of ancient artifacts that hold generous payouts. Thanks to special symbols, you can open a secret room where you need to complete quests, after which you can get the treasures of the ancient Mayan civilizations. In this review, we will share all the data about this adventure that will help you complete all the tasks!

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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Spins
  4. Summary
  5. Where to play
General information about Crystal Skull slot

General information about Crystal Skull slot

Rating by Ella Houghton:
8.6
User’s Rating: (based on  reviews):
9
Endorphina
Write a review +25 SJ points
  • Release Date:
    22.11.2022
  • Volatility:
    High
  • RTP:
    96.1%
  • Multiplier:
    Yes
  • Max. win:
    400x
  • Bonus game:
    Yes
  • Free spins:
    No
  • Scatter Symbol:
    Yes
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    25
  • Slot reels:
    5
  • Layout:
    5-3
  • Stakes range (€/£/$):
    0.01 to 75
  • Slot Theme:
    Ancient civilizations
  • Technology:
    HTML5
More infoLess info

Licensed and tested by

  • GLI (Gaming Labs Certified)
  • ISO 27001
  • MGA
  • ONJN
  • Spel inspectionen

How to Play

In the ancient Mayan tombs, you will encounter a 5x3 grid and 25 winning ways that will lead you to the treasure. On the reels, you will find Wild Skulls that can expand vertically. Bonus symbols will trigger an additional round with multipliers and other features, which we will talk about later. First, let's start the slot:

  1. Activate the Crystal Skull game for real money
  2. Then, read the symbol table and rules
  3. Next, set the bet from €0.01 to €75
  4. You can increase each winning spin in the gamble round.

Crystal Skull RTP and Volatility

8.9 

The gambling adventure in the ancient Mayan tombs will be held with an RTP of 96.10% and medium-high volatility.

The presented returns are balanced, and medium-high volatility will make the game more reckless with big wins. Based on these parameters, we boldly put this slot a rating of 8.9.

Theme

9.3 

Can you find the last remaining crystal skull? In Crystal Skull by Endorphina, you can test your gambling skills in a cool adventure where you can explore ancient locations. If you are smart, you can get into a secret tomb where you will need to complete a quest that will lead you to the crystal skull. In general, the slot has an interesting plot, high-quality graphics, and a thematic soundtrack, so we give it a rating of 9.3.

While exploring the tombs, you can find many artifacts and ancient decorations that can be exchanged for valuable deposits. For example, card signs pay up to 5x, artifacts up to 50x, and the main character up to 400x. Scatters will pay up to 50x and they pay anywhere. Wild skulls can be found on reels 2, 3, and 4, and when triggered, they will cover the entire reel. Also, a Wild symbol can replace 1 Scatter, but in this case, it will not cover the reel. Bonus symbols will open a special game.

Theme

Crystal Skull slot paytable

Mobile Compatibility

Crystal Skull slot mobile

Owning modern gadgets, such as iOS or Android, you can go on an adventure for ancient treasures. Crystal Skull is the perfect game to play on your smartphone or PC.

About Endorphina

The Endorphina vendor has been a powerful developer and provider of gambling entertainment since 2012. The Endorphina team consists of highly qualified international professionals with many years of experience in creating online casino games. As a result, the vendor offers a portfolio with more than 120+ slots. For example, Mystery of Eldorado, Taboo, and Aus Dem Tal.

Bonus Rounds & Free Spins

9 

In the gambling adventure Crystal Skull, you will explore ancient locations and you will be able to find many bonus artifacts that will allow you to get into extra rounds. Yes, there are no free spins in the slot, but there are other cool bonus features that deserve a rating of 9. Let's analyze each achievement.

Expanding Wilds

On reels 2, 3, and 4, you can meet the Wild symbol, which can cover the entire reel. Also, this value can replace the Scatter, but then it will not cover the reel.

Wheel of Fortune

When you catch 3 gold coins on positions 3, 4, and 5, you will start the wheel of fortune. In this game, you can get the following achievements:

  1. 10x
  2. 12x
  3. 15x
  4. 20x
  5. 25x
  6. Super Game Treasure Hunt Bonus

The most interesting thing is that if you are not satisfied with the achievements, you can use 3 attempts to pick up the most generous prize. Please note that the result is counted after the last attempt.

Treasure Hunt Bonus Feature

When you activate the Treasure Hunt Bonus feature, you will be taken to a unique location with 5 levels. At levels 1 to 3, you will find jewelry under the masks, and at 4 to 5 ones, there are artifacts and snakes. Note that in each level, you will have only one attempt, and if you find a snake at levels 4 to 5, the round will end.

Crystal Skull slot Treasure Hunt Bonus

Bonus Pop

You can also buy a ticket to the wheel of fortune for 25x, and a special Treasure Hunt Bonus round for 109x. Thus, you can activate bonus rounds at any time.

Gamble Game

You can increase each of your wins by 2x if you activate the gamble game. In this bonus game, you need to draw a card that is higher than the dealer's. In total, you will have 10 successful attempts.

Crystal Skull Demo Play

In the demo version of the Crystal Skull game found on our site, you can test all the bonus features and buy achievements without a deposit. This way, you will be able to test the game before launching for real money.

Max Win

7 

In the Crystal Skull base game, you can collect 5 explorer symbols and get 400x.

You can also find up to 25x in the bonus wheel of fortune, and in the Treasure Hunt Bonus round, you can pick up very generous prizes. Such winnings can be assessed by ratings 7.

Overall Rating

8.6

Adventure Crystal Skull will give you unforgettable gambling emotions as the game has a lot of bonus features. Yes, there are no free spins in the slot, but you will get generous multipliers and a mini-game with big prizes. Also, you can always buy all achievements with your credits. We think this game deserves attention!

Hits
Expanding Wilds
Bonus Buy option
Wheel of fortune with multipliers
Treasure Hunt Bonus Minigame
Misses
You may lack standard free spins

Crystal Skull Slot - FAQ

What is the RTP in the Crystal Skull slot?

The gambling adventure in the ancient Mayan tombs will be held with an RTP of 96.10% and medium-high volatility.

How much does a ticket to bonus rounds cost?

The Wheel of Fortune is worth 25x, and the special Treasure Hunt Bonus round is worth 109x.

How to activate the wheel of fortune?

Collect 3 bonus symbols on positions 3, 4, and 5 and the bonus game will open for you.

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Ella Houghton
Ella Houghton
Expert in: News, Blog, Slot reviews, Payments
Ella is a professional content-writer with 8 years of experience in the casino sphere. She has broad knowledge of gambling related themes and is happy to share this with Slotsjudge.

2126 articles

Reviewed by Editor-in-Chief
Nikita Lukanenoks
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Overall rating

Based on 1 reviews

9/10
Sloto Toto own avatar
Sloto Toto
6 lvl Superstar
9
Winning: €3
Multiplier: x22
Nice “ancient” slot about Mayan civilization, I guess. I like the way the game looks, and I like the gameplay features. You can gamble your winnings, trigger special pick bonus and wheel of fortune.
The base game is empty, except expanding wilds. But payouts are low and symbol stacks do not appear that often. So, triggering one of the bonuses is a must if you want to end your sessions with profits. But sometimes even 200 spins might be not enough to get one of the bonuses.
Review image 2182-0
22.12.2022
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