Dolphin Reef - (NextGen) Slot Game Review | RTP & Free Spins

Dolphin Reef slot game, developed by NextGen Gaming, transports players beneath the waves to explore a vibrant underwater world teeming with marine life and hidden treasures. The slot boasts a 5-reel layout featuring various sea creatures such as dolphins, turtles, clown fish, sea horses, and starfish, along with traditional high card symbols.

Game Provider:

NextGen Gaming

Release Date:

3 January 2009





Max Win:




History of Dolphin Reef Slot Game

Dolphin Reef slot free play game is a creation of NextGen Gaming, a renowned developer known for crafting slots with engaging themes and innovative mechanics. 

The game has been a part of the online casino landscape for several years, becoming a favorite among players who appreciate its underwater theme. It stands out due to its simple yet captivating gameplay and the inclusion of both traditional and unique features that enhance the gaming experience. 

Over time, Dolphin Reef has been adapted to ensure compatibility with modern mobile devices, allowing players to enjoy the game on-the-go.

Dolphin Reef Slot Game Mechanics

Dolphin Reef slot online free game employs a 5-reel, 30-payline format, offering players numerous ways to win. The game mechanics are centred around the underwater theme, with the dolphin symbol playing a crucial role as both the wild and the key to triggering the game’s unique re-spin feature. 

This feature activates when dolphins land on reels 2 and 4, turning these reels entirely wild and granting five re-spins, significantly increasing the potential for high-value wins. The betting range is designed to accommodate a wide array of players, from casual enthusiasts to more serious punters, with options to adjust the number of paylines and the bet size per line. 

The inclusion of a scatter symbol, represented by a treasure chest, adds another layer to the gameplay by offering payouts independent of paylines when three or more appear on the reels. 

The game’s mechanics are straightforward yet engaging, providing a balance between simplicity and the excitement of potential big wins. Additionally, Dolphin Reef includes a gamble feature, giving players the chance to double or quadruple their winnings by guessing the colour or suit of a hidden card.

Dolphin Reef Slot Theme, Graphics, and Sounds

Dolphin Reef online slot game immerses players in a vibrant underwater world, brought to life through crisp, colourful graphics and thematic symbols. 

The reels are set against a backdrop of the ocean’s depths, populated with a variety of sea creatures including turtles, clownfish, and seahorses, alongside the titular dolphin. 

The high-quality graphics create a visually pleasing environment that captures the beauty and serenity of the underwater realm. 

The game’s sound design complements the visuals perfectly, with soothing aquatic sounds and celebratory audio cues that enhance the immersive experience. The attention to detail in the animations, particularly during the re-spin feature where dolphins leap between reels, adds a dynamic and engaging element to the gameplay.

Dolphin Reef Slot Symbols and Special Features

Dolphin Reef is adorned with a variety of symbols and features that draw players into its enchanting underwater world. Here’s a detailed look:

  • Dolphin (Wild Symbol): The dolphin symbol serves as the wild and is pivotal in the game’s mechanics. It appears on reels 2 and 4 and can substitute for all other symbols to form winning combinations. The appearance of dolphins triggers the game’s unique re-spin feature.
  • Treasure Chest (Scatter Symbol): The treasure chest acts as the scatter symbol. Landing three or more scatter symbols anywhere on the reels results in a payout, with the amount multiplied by the total bet.
  • Sea Creatures and Card Symbols: High-value symbols include sea turtles, clownfish, starfish, and seahorses, each offering different payouts. The lower-value symbols are represented by standard playing card icons (A, K, Q, J, 10, and 9), which are stylized to fit the aquatic theme.

Dolphin Reef Slot Game's Bonus Features

The bonus features of Dolphin Reef are designed to enhance the underwater adventure and provide additional ways to win:

  • Re-spin Feature: Triggered when the dolphin wilds appear simultaneously on reels 2 and 4. This feature turns both reels completely wild and awards five re-spins, during which the wild reels remain fixed.
  • Gamble Feature: After any win, players have the option to gamble their winnings in a double-or-nothing or quadruple-or-nothing game, guessing the colour or suit of a hidden card, respectively.

Dolphin Reef Slot Advantages and Disadvantages

Dolphin Reef combines a charming theme with straightforward gameplay, offering a mix of advantages and limitations to its players.


✅Wide Betting Range: Dolphin Reef caters to a broad spectrum of players, from low-stakes enthusiasts to high rollers, thanks to its flexible betting options.

✅Mobile Compatibility: The slot’s optimization for mobile devices ensures that players can enjoy the game on the go without compromising on quality. 

✅Simple Gameplay: The straightforward mechanics make Dolphin Reef an excellent option for both beginners and seasoned players. 

✅Autoplay Feature: The inclusion of an autoplay option provides a hands-free gaming experience, allowing players to set a predetermined number of spins at a constant bet.


❌Lack of Progressive Jackpot: The absence of a progressive jackpot might be a turn-off for players chasing life-changing wins. This limitation caps the maximum win potential.

❌Limited Bonus Features: While the re-spin feature is undoubtedly exciting, the overall scarcity of bonus features compared to other slots might leave some players wanting more.

❌Graphics Could Be Updated: Although the graphics are visually appealing, they may feel dated compared to newer slots with more advanced animations and 3D effects.

How to Play Dolphin Reef Slot Online

How to Play Dolphin Reef Slot Game Online

Register or Log In at BP9

To start playing the Dolphin Reef slot online, you first need to have an account with BP9.


Deposit Funds

Before playing, ensure you have funds in your account. Go to the deposit section, choose your preferred deposit method, and follow the instructions to add money to your account.


Find the Game

Use the search bar on BP9 to look for the Dolphin Reef slot.


Set Your Bet

olphin Reef allows you to select the number of lines you want to play and the bet per line. Ensure you set a bet amount that suits your bankroll.

Understand the Rules and Paytable

It’s a good idea to review the game rules and paytable before you start playing. 


Start Playing

Once you’re ready, press the spin button to start the game. 


How to Win Dolphin Reef Slot

How to Win Dolphin Reef Slot Game

  • Watch for the Dolphin Wilds: The dolphin symbol serves as the wild and is key to big wins, especially. Focus on getting these symbols for higher chances of winning.
  • Aim for the Re-spin Feature: The re-spin feature is triggered when dolphin wilds appear on reels 2 and 4. This turns both reels completely wild and awards five re-spins.
  • Scatter Symbols are Your Friend: Keep an eye out for the treasure chest scatter symbols. Getting three or more can still result in a significant payout.
  • Use the Gamble Feature Wisely: ]Use this feature sparingly, as incorrect guesses will result in losing your winnings.
  • Manage Your Bankroll: Set a budget for your session and stick to it. Patience and strategic betting can lead to significant wins over time.



Yes, Dolphin Reef includes a gamble feature that allows players to double or quadruple their winnings by correctly guessing the colour or suit of a hidden card. 

The re-spin feature in Dolphin Reef is triggered when wild symbols land on both reels 2 and 4. These reels then become fully expanded wilds, and the remaining reels (1, 3, and 5) are re-spun 5 times, potentially leading to significant wins.

Yes, Dolphin Reef is optimised for mobile play. The game can be enjoyed on various devices, including smartphones and tablets.