Diamond Tales: The Ugly Duckling

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Rules and Gameplay

Embark on a whimsical adventure with Greentube’s Diamond Tales: The Ugly Duckling a slot game that combines the magic of fairy tales with exciting casino action. Set against a 5-reel, 4-row format, this game boasts 40 fixed paylines, inviting players to explore the transformational journey from an ugly duckling to a majestic swan. With stakes ranging from $0.40 to $40 per spin, this high-volatility game challenges players to navigate through its enchanting world, promising both risk and reward with an RTP of 95.04%. The blend of captivating visuals and strategic gameplay ensures a uniquely engaging experience.

Bonus Features

The game dazzles with an array of bonus features that elevate the playing experience:

  • Heart Collection Mechanism: Players gather Diamond Heart symbols to unlock new chapters in the story, each offering unique bonuses and visual transformations.
  • Diamond Tales Feature: Activating this feature with 3 Book symbols on specific reels rewards players with respins, during which collecting Diamond and Gold Diamond Hearts can lead to substantial multipliers and payouts.
  • Snap Drop Feature: This bonus grants a respin with Diamond Hearts, amplifying wins with multipliers that combine for a thrilling payout.
  • Buy Bonus Option: For those eager to dive straight into the action, the game offers a feature buy option at 100x the stake, granting immediate access to the Diamond Tales bonus round.

These features, alongside the game’s narrative progression, ensure a dynamic slot experience filled with surprises and opportunities for big wins.


Within Diamond Tales: The Ugly Duckling symbols play a pivotal role in the game’s charm and functionality:

  • Low-Paying Symbols: The classic card ranks from Jacks to Aces, offering lower-tier wins.
  • Medium-Paying Symbols: Domestic animal icons like Dogs and Chickens represent mid-level payouts.
  • High-Paying Symbols: More fanciful creatures, including Cats, Turkeys, and the Ugly Duckling itself, provide the game’s most significant returns.
  • Special Symbols: Diamond Heart, Book, and Snap Drop symbols unlock the game’s myriad of bonus features, enhancing both the narrative and win potential.

Each symbol enriches the story, turning every spin into a chapter of its own fairy tale.


Structured around 40 fixed paylines, the game offers a plethora of ways to win. Each spin across the 5×4 grid can potentially unlock a variety of winning combinations, supported by the game’s extensive range of symbols and bonus features. This ensures a balanced gameplay experience, where every spin brings the possibility of turning the page to another rewarding chapter of the fairy tale.

Pros & Cons

Pros Cons
Engaging storyline that progresses with gameplay Subpar RTP at 95.04%
Innovative bonus features enhancing player engagement High volatility may not suit all players
Massive top win of 50,000x the bet Limited betting range from $0.40 to $40

Minimum and Maximum Bet

In Diamond Tales: The Ugly Duckling players can dive into the fairy tale adventure with a minimum bet of $0.40, while those looking to chase the biggest rewards can increase their stake up to a maximum bet of $40. This betting range is designed to accommodate both casual players and high rollers, ensuring that everyone can enjoy the enchanting journey through the game’s richly crafted world.

Game Jackpot

The grand prize in Diamond Tales: The Ugly Duckling is an impressive 50,000x your bet, presenting a potentially life-changing sum for the fortunate. Coupled with an RTP (Return to Player) of 95.04% and high volatility, this game is tailored for those seeking thrilling gameplay with the chance for massive payouts. High volatility means wins may be less frequent but can be exceptionally rewarding, making every spin a potentially significant turning point.

About Provider

Greentube, the mastermind behind Diamond Tales: The Ugly Duckling has established itself as a pioneering force in the online gaming industry. With over two decades of experience, Greentube has been crafting immersive, innovative games that push the boundaries of traditional slot experiences. Greentube continues to deliver top-notch gaming content that appeals to a broad audience, thanks to its commitment to quality, creativity, and technological excellence.

How To Play

  1. Launch the Game: Start by opening Diamond Tales: The Ugly Duckling at your preferred online casino.
  2. Set Your Bet: Adjust your bet size using the game’s interface, with options ranging from $0.40 to $40 per spin.
  3. Understand the Paytable: Familiarize yourself with the game’s symbols, paylines, and bonus features by accessing the paytable through the game menu.
  4. Spin the Reels: Once your bet is set, press the ‘Spin’ button to start the game. Alternatively, you can use auto-play features for continuous play.
  5. Collect Symbols: Watch as the reels come to a stop, revealing symbols. Winning combinations will trigger payouts or special features.
  6. Engage with Bonus Features: Landing specific symbols can unlock the game’s rich bonus features, enhancing your chances for big wins and progressing the storyline.
  7. Adjust Your Strategy: As you play, adjust your betting strategy based on the outcome of your spins and any insights gained from the game’s patterns.


Diamond Tales: The Ugly Duckling by Greentube stands out as a remarkable slot game that weaves an enchanting narrative with the thrill of casino gaming. With its vivid graphics, innovative gameplay features, and the potential for substantial payouts, it offers a gaming experience that is both immersive and rewarding. Despite the drawbacks of a lower RTP and high volatility, the game’s captivating theme, coupled with the chance to win up to 50,000x the stake, makes it a compelling choice for players seeking an extraordinary slot adventure.