101 Crystal Skulls from High 5 Games

RTP: 96.5%

Embark on a daring pirate adventure in 101 Crystal Skulls, a thrilling and feature-packed casino game from High 5 Games.

Embark on a daring pirate adventure in 101 Crystal Skulls, a thrilling and feature-packed casino game from High 5 Games. This slot takes you on a high-seas quest for legendary treasure, featuring a unique symbol collection and upgrade feature. It’s a high-volatility mobile slot for players who love a classic pirate story and the chance for an ever-improving bonus round!

Provider: High 5 Games
Release Date: 2021
RTP: 96.5%
Volatility: High
Max Win: 10,000x
Theme: Pirates / Adventure
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Feature Value
Reels 5
Rows 4
Paylines 40
Min Bet $0.40
Max Bet $400
Max Win 10,000x
Jackpot No
RTP 96.5%
Volatility High
Hit Frequency N/A

101 Crystal Skulls is set on a mysterious tropical island, with a pirate ship anchored offshore. The graphics have a classic, painted style that is characteristic of High 5 Games, creating a rich and adventurous atmosphere. A sweeping, epic pirate score enhances the feeling of a grand treasure hunt.

  • Regular Symbols: 5, J, Q, K, and A card royals are the low-paying symbols. The premium symbols are three different pirate characters.
  • Special Symbols:
  • Wild Symbol: The game’s logo is the Wild, substituting for all regular symbols.
  • Scatter Symbol (Crystal Skull): The glowing Crystal Skull is the Scatter. Landing 3 or more triggers the free spins.

To begin your quest, simply set your bet and hit the spin button. The main goal is to trigger the progressive free spins round. For a risk-free voyage, a free slot machine demo is available. The game is optimized for a perfect performance on all mobile devices.

Free Spins with Symbol Upgrade

The main feature is triggered by landing 3 or more Scatters, which awards 7 free spins. During this round, a special compass meter appears above the reels. Every time a Crystal Skull scatter lands, it is collected in the compass. As you collect skulls, you will upgrade the premium pirate symbols. First, they will transform into the next highest-paying pirate, and then their win multiplier will increase (up to 4x). By the end of the feature, you could be playing with only the top pirate symbol, with all instances of it carrying a 4x multiplier! This classic slot feature offers a thrilling sense of progression.


RTP: As a high RTP slot, this game has a return-to-player of 96.5%, a strong, player-friendly value.

Volatility: This is a high-volatility game. The gameplay is a thrilling hunt for the free spins round, where the progressive symbol upgrades can lead to a massive treasure chest of a payout.


101 Crystal Skulls is a fantastic adventure slot with a deep and rewarding bonus feature. The progressive symbol upgrade mechanic in the free spins is a brilliant way to build excitement and massive win potential. It’s a must-play for fans of pirate themes and anyone who loves a bonus round that gets more powerful as you play. Set sail and find the crystal skulls!

Pros Cons
✅ Exciting progressive symbol upgrade feature in free spins. ❌ High volatility can be tough on smaller bankrolls.
✅ Adventurous pirate theme. ❌ Graphics are classic H5G and may look simple to some.
✅ Strong 96.5% RTP. ❌ Base game is relatively simple.

Suitable for: High-rollers, fans of pirate themes, and players who enjoy progressive bonus features.


What is the RTP of 101 Crystal Skulls?

The RTP of 101 Crystal Skulls is an excellent 96.5%.

Can I play 101 Crystal Skulls for free?

Yes, a free demo version is available on our website for you to play without any registration.

Does 101 Crystal Skulls have a bonus feature?

Yes, it has a progressive free spins round where collecting crystal skulls upgrades the premium pirate symbols and increases their win multipliers.

What is the maximum win in 101 Crystal Skulls?

The maximum win is a massive 10,000 times your total bet.

Is 101 Crystal Skulls mobile-friendly?

Yes, the game is fully optimized for a perfect pirate adventure on all mobile and tablet devices.


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