Crystal Skull

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Rules and Gameplay

The Crystal Skull slot by Endorphina is an adventure-themed game that takes players on a journey to explore ancient temples. Set across 5 reels, 3 rows, and 25 paylines, the game offers flexibility in betting, allowing players to choose the number of paylines they wish to activate. Bets range from $0.01 to $75 per spin, catering to both casual players and high rollers. The game’s RTP varies between 93.77% and 96.10%, indicating a medium to high volatility that promises substantial payouts for the lucky adventurers.

Bonus Features

Crystal Skull is packed with exciting bonus features that enhance the gaming experience. Here’s a rundown of the key bonus features:

  • Expanding Wilds: Crystal Skull Wilds appear on the middle reels and can expand, substituting for other symbols to complete winning combinations.
  • Wheel of Fortune: Landing 3 Bonus symbols triggers a spin on the Wheel of Fortune, offering instant coin wins up to 25x your bet or access to the Treasure Hunt Bonus feature.
  • Treasure Hunt Bonus: This feature takes players through a multi-level picking game, offering instant wins and the chance to progress through up to 5 levels for bigger prizes.
  • Gamble Feature: After a win, players have the option to gamble their winnings in a card game against the dealer for a chance to double their payout.
  • Bonus Pop: Players can purchase direct access to the bonus features, with prices set at 25x for the Wheel of Fortune and 109x for the Treasure Hunt Bonus.


The symbols of Crystal Skull are a mix of classic card ranks and thematic icons reflecting the adventurous theme:

  • Low-paying Symbols: Card ranks from Tens to Aces, offering up to 4x the bet for winning combinations.
  • High-paying Symbols: Snakes, masks, statues, and adventurers, with the adventurer symbol yielding a 400x payout for five on a payline.
  • Special Symbols: Crystal Skull Wilds, Pyramid Scatters, and Bonus symbols, each adding extra layers of excitement and opportunity to the gameplay.


The Crystal Skull slot offers generous payouts, especially for high-paying symbols and through its bonus features. Here’s a brief overview:

Symbol 2x 3x 4x 5x
Adventurer 1.0x 8.0x 400x
Snake 0.8x 4.0x 20x
Mask 0.8x 4.0x 30x


Crystal Skull features 25 paylines, offering multiple ways to win on every spin. Players have the option to adjust the number of active paylines, providing flexibility in gameplay and betting strategy. This feature allows for a tailored gaming experience, appealing to a wide range of slot enthusiasts.

Pros & Cons

Pros Cons
Polished graphics and engaging theme Lacks free spins feature
Innovative bonus features for enhanced gameplay Theme is not original
Accessible betting range suitable for all players

Minimum and Maximum Bet

The betting range in Crystal Skull allows for a minimum bet of $0.01 and a maximum bet of $75 per spin. This wide betting range makes the game accessible to both casual players who prefer lower stakes and high rollers looking for more substantial bets.

About Provider

Endorphina, the developer behind Crystal Skull, is a recognized studio known for its high-quality slot games. Launched on November 22, 2022, Crystal Skull has become an instant success among slot fans, thanks to its immersive engine and high-quality artwork. Endorphina’s reputation for creating engaging and visually appealing slots is further solidified with this release.

How To Play

  • Start by setting your desired bet amount, adjusting the value from $0.01 to $75 per spin.
  • Spin the reels and watch for winning combinations or special symbol landings.
  • Land three or more Bonus symbols to trigger the Wheel of Fortune feature, offering instant coin wins or entry into the Treasure Hunt Bonus feature.
  • Utilize the option to respin the bonus wheel up to three times to enhance your winnings.
  • In the Treasure Hunt Bonus feature, progress through levels by picking items, avoiding snakes to avoid a game over screen.
  • Attempt to boost your wins with the Gamble feature by trying to beat the dealer’s card, without having to guess colors or suits.
  • Consider purchasing the Bonus Pop option to directly access bonus features for a higher bet multiplier.


Crystal Skull by Endorphina stands out with its polished graphics, fun bonus features, and an accessible betting range. Although it may not introduce a groundbreaking theme, the game’s solid execution and engaging bonus mechanics make it worth a try for fans of adventure-themed slots. The lack of a free spins feature is compensated by the innovative Wheel of Fortune and Treasure Hunt Bonus features, ensuring that the gameplay remains exciting. With its RTP range offering decent return prospects and the medium-high variance catering to a wide range of players, Crystal Skull is a commendable addition to the slots market.