We saved the best (and the hardest) music score until last. At this point, the pressure was at the highest. But so was the excitement. A masterpiece was clearly forming. And it had to be conveyed in all its grandeur. No matter the personal cost.

7 years ago
Case Study




The main musical idea for the first part of the theme was already defined at this stage.

MADLORD unleashed the kind of complex harmony, not usually found in a fantasy game, relishing the opportunity to use half-diminished seventh chords.Augmented harmonies and chromatic motifs. Seventh-flat-five chords and diminished scales.

The music so far was perfectly aligned with the mysterious mood for this remote kingdom of ice and snow.

This was the castle with which the strongest emotional connection had to be established.

There was a special kind of beauty. Of grandeur. Belonging to a distant civilization. In a faraway land. Hidden and secluded from mere mortals. A civilization with a mystic connection with the visible. And the invisible. The 50-meter high statues towering over the entrance created a profound sense of greatness and power.

This was an advanced civilization. The kind of which is only heard of in myths and legends.

The depth was captivating. Feelings of nostalgia surfaced. Perhaps, somewhere in our collective unconscious, we are aware of unknown civilizations that transcended the physical plane into higher realms of existence. That roamed centuries before our comprehension of history.

The music had to be both mysterious and profound. Memorable. Cinematic in scope.

MADLORD devoted time and energy into its development. Quite, simply, a ‘good’ idea would not suffice… It is true, there was uncertainty as to whether there would be enough time to conjure the grandeur… the scope of emotions that this castle inspired. Emotions that had to be delicately and carefully carried through the music.

Some emotions have to be released. They cannot be suppressed. It was certain that this piece of music would need to go far beyond the ordinary. And to do justice to the grandeur of this castle – and to what you, the audience, had to experience – an exceptional effort was required.


The second sketch developed the main idea further. The first climax now led into the beginning of the second part of the score, where the main musical idea is repeated. Only this time played by the full string section. The melody now departs from the mysterious and the drama increases.

The violins and cellos play intense and passionate chromatic motifs.

Repeating them. Creating greater and greater shivers of emotion as the harmony develops. Clashes of dissonance and cadences create tension. And release.

Next, the woodwinds were added. They emphasize the pull of the harmony. Finally, the timpani percussion and cymbals catapult the music to its peak. The final climax is reached.

The rest of the month was used to improve the pace and performance of the large number of orchestral instruments. To complete the set of three pieces of music for all kingdoms. Revise interface sounds. Mix and finally master the production.

When Florian Schmid, the producer of Castle Builder at Rabcat, listened to the completed score for the first time, his reaction was:

“First, I have to recover from falling off my chair after the first listen. We are all very excited as this will add so much to the game. This is way beyond what we would have ever asked for.”


MADLORD certainly made a gamble on this game production. Our client’s objective was to push the boundaries of online gambling applications. We bet our personal time to the creation of the most spectacular and unique music score for an online video slot ever made.

We would reach our client’s objectives. And then we would take them far beyond.

The result is nothing short of mind-blowing. More than 26 minutes of original music and over 30 minutes of audio in total, makes this the biggest custom-made online video-slot soundtrack production in history. But it is not just the amount of custom-made music that sets it apart from every other gambling game ever made.

It has the finest pieces of orchestral music ever custom-created for any online gambling or land-based casino game.

This combination has helped make Castle Builder I more unique than ever conceived. Now it is up to you, the reader and listener, as to whether you agree with such bold statements or not…

But players around the world have already spoken.

The success of this game is nothing short of spectacular.

Castle Builder I has exceeded the expectations of Rabcat many times over. As a result of the game’s success, it has been adopted by more than 80 online casino operators worldwide, so far…



Listen to the Castle Builder I music soundtrack now.


Castle Builder Video Slot

All named games, game’s artwork and game’s trademarks shown on this project are property of Rabcat Computer Graphics GmbH.

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Foxium is a supplier of premium video slot games to the online gambling and casino industry. Based in Estonia, they create a superior gaming experience through exceptionally crafted games built around storytelling. A rising name in the casino gaming industry.

MADLORD has provided Foxium with the following services for their premium video slots and trailers:

- Music Composition
- Sound Design
- Voice Overs
- Audio Post Production

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Golden Rock Studios

“MADLORD understands quickly our audio needs and add their own unique creative flair to produce sounds that are far beyond the ordinary.”

Golden Rock Studios is a supplier of casino games to the international gambling industry. Based in Gibraltar and founded by two of the most respected leaders in the gambling game industry’s, they produce video slot and casino games focused on delivering a unique and thrilling gaming experience. For Golden Rock Studios experience is everything.

MADLORD has provided Golden Rock Studios with the following services for their video slots and trailers:

- Music Composition
- Sound Design
- Voice Overs

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MEGARA is a band born in Spain. They classify their style as a perfect mix between sinister and cotton candy. MEGARA has placed itself in its short life in the spotlight of both the press and the public with a strong fan base in Spain, Mexico, Argentina, Chile and throughout Latin-America. Its bipolar facet mixes darkness with the totally opposite side to it, loaded with unicorns, knickknacks and fucksia.

MADLORD has provided MEGARA with the following services for the closing concert of their tour "Aquí Todos Estamos Locos":

- Backtrack Audio Post-Production and Sound Design for the drum solo performance

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Play'n GO

“MADLORD’s unique skillset and experience will play an essential role in executing Play’n GO’s vision to be the world’s best provider of iGaming content.”

Play'n GO is one of the largest and most recognized gaming entertainment suppliers of online slots to the casino industry in the world. Their innovation leads the industry by providing an unmatched portfolio of titles to regulated casino operators in over 25 jurisdictions.

Since 2020, MADLORD has provided Play'n GO with the following services for over 40 projects including their premium line of video slots and video trailers:

  • Consultancy on innovative Audio Production and
    Sound Integration techniques for video slots
  • Audio Post-Production for Video Trailers
  • Music Composition
  • Sound Design
  • Voice Overs
  • Songwriting
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“MADLORD delivered and excelled with his audio productions the demanded high quality and was integral in creating our most iconic gambling video slots.”

Rabcat is one of Europe´s leading digital entertainment production houses, providing high-end art and animation production for the international video game industry, and premium video slot games for the online gambling industry.

MADLORD has provided Rabcat with the following services for over 40 games, including their revered premium line of video slots, video poker, video trailers and teasers:

  • Music Composition
  • Audio Post-Production
  • Sound Design
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Santillana publishing

Santillana is the leading textbook publishing group in Spain and Latin America, selling over 125 million books each year. Santillana is also part of PRISA, the largest media group in the Spanish and Portuguese-speaking markets, and leader in education, news, information and entertainment.

MADLORD has provided Santillana with the following services:

  • Voice Overs
  • Audio Post-Production
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The Santander Group

The Santander Group is a major global banking organization, serving over 102 million customers across Europe, Latin America, North America and Asia.

MADLORD has provided The Santander Group with the following services:

  • Voice Overs
  • Audio Post-Production
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Tom Horn Gaming

Tom Horn Gaming is a well stablished supplier of casino software and gambling solutions across international markets. The company's extensive experience accross land-based and online environments allows them to deliver highly engaging and commercially successful video slot games. With math models carefully developed to suit players in international markets.

MADLORD has provided Tom Horn Gaming with the following services for their video slots:

- Music Composition
- Sound Design

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University of Dayton Publishing

Part of Grupo SM and with close links to one of the most respected universities in the USA, University of Dayton Publishing specializes in providing high-quality English language teaching and learning materials.

MADLORD has provided University of Dayton Publishing with the following services:

  • Voice Overs
  • Audio Post-Production
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Vodafone is one of the world's leading telecommunications companies, owning and operating mobile networks in 26 countries and providing telecommunications and IT services to corporate clients in 150 countries.

MADLORD has provided Vodafone with the following services:

  • Music Composition
  • Voice Overs
  • Audio Post-Production