Greentube introduces players to a classic fable character with its latest fairytale slot title, Diamond Tales: The Ugly Duckling


Out now 




Diamond Tales: The Ugly Duckling is a 5×4 reel slot with 40-paylines and bonus features including retriggered free spins and a diamond heart reel.




95 per cent 


In the base game, the aim is to collect diamond hearts in the special reel to help progress the story and reach the swan feature. These diamond hearts also influence your winnings in the bonus diamond tales feature.

The snap drop feature can be triggered at any point in the base game by landing a snap drop symbol on the fifth reel, with diamond hearts in the special reel. 

During the snap drop feature, players are awarded with one free respin, where only diamond hearts with multiplier values can land on the reels. 

Following the respin, all the multipliers are added up, with the sum of all these multipliers values enhancing the player’s stake.

The Diamond Tales feature is triggered by three book scatters appearing on reels one, three and five. The player enters the feature with one extra heart added to every space in the special reel. 

Player are initially awarded three free spins, which re-trigger every time a new diamond heart falls on the main reels. 

If a red diamond heart appears on a reel, its value will be added to any red diamond hearts that previously landed on the same reel.

Gold diamond hearts act as multipliers in the feature. With each consecutive chapter of the game, an additional gold diamond heart is added to the Diamond Tales feature, up to a maximum of five.

Players can also buy these bonus features for the price of a significantly increased bet. 


Markus Antl, Head of Sales and Key Account Management at Greentube, stated: “We wanted to create a world that evokes beauty and possibility and in Diamond Tales: The Ugly Duckling, our design team has done exactly that.

“On top of a well-known story line we created a game that includes several features and develops throughout its gameplay. Diamond Tales: The Ugly Duckling is an exciting title that will have players on the edge of their seats as they aim to give the fairy tale a truly happy ending. We see this title as one that will appeal to a wide range of players in markets worldwide.”

Per Petersen, CEO of RoyalCasino, added: “The Ugly Duckling is a well-known and much-loved tale across the world. With its origins in Denmark, we are thrilled to have worked together with Greentube to introduce the story as a slot to players around the globe.

“We are thrilled with the result as the game really does the original fairy tale justice while adding an element of excitement and thrill. We can’t wait to let customers experience the story once more as they help The Ugly Duckling evolve into a swan with winnings along the way.”