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PRESS RELEASE
For Immediate Release

Zefyr: A Thief's Melody — A super feel-good odyssey lands on Steam June 2, 2025



Toulouse, France, May 6, 2025 - Oneiric Worlds, the French indie studio of solo developer Mathias Fontmarty, is thrilled to announce the release of Zefyr: A Thief's Melody on Steam and itch.io on June 2, 2025. Zefyr is a charming and colorful stealth/adventure game with a contemplative vibe, featuring turtle riding and open climbing. It’s a love letter to the old-school adventure games of the PS2/GameCube era.

Details


A Nostalgic Adventure with a PS2 Look

In a colorful archipelago, play as Eïko, a young thief training at the Guild. Investigate mysterious kidnappings and face—or sneak past—roaming pirates. Sail the ocean on the back of a turtle and climb to the top of towering islands. Hunt for hidden treasures, heal sick animals, and uncover the truth in this dreamy journey.

Watch the release trailer here: https://youtu.be/inu1ZpmNrKo


Drawing inspiration from adventure classics like Zelda: Windwaker, Sly Cooper, and Beyond Good and Evil, Zefyr: A Thief's Melody combines exploration, humorous characters and dialogue, puzzles, collectibles, hidden secrets, and giant bosses. Its colorful world and nostalgic atmosphere will appeal to players of all ages.

A standout feature of the game is the ability to explore and sail across a vast ocean on the back of a lovable turtle. In addition to sailing, players will use climbing skills to uncover the islands' hidden secrets by planning the best path to their goal. Along the way, they'll also find and heal sick animals scattered across the world.
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Details

Explore a Colorful Open World

Run freely, sneak through tunnels to find hidden secrets, climb anywhere, and leap from great heights without taking fall damage. Travel from island to island across the ocean on your turtle companion. Everything is designed to encourage and reward free exploration.

Stealth or Action — You Choose

Whether you face pirates, guards, robots, or rival thieves, your missions will be full of challenges. It’s up to you to quietly knock out enemies, confront them head-on, or avoid conflict altogether. Just make sure to observe your surroundings and choose wisely.

Side Quests and Collectibles

Find and cure sick animals with healing fruits! Collect flowers, recover lost paintings, and gather crystal gems. A variety of side quests awaits in this feel-good world. Will you find them all?

Face Giant Bosses

During your journey, you’ll encounter ancient corrupted Guardians that must be healed in epic confrontations. Some will block your path, others will be hidden. Can you bring peace to these gigantic creatures?

Unlock New Abilities and Items

The game features Metroidvania-style progression with many unlockable items: bo staff, fruits, flippers, flute, slingshot, turtle, bow, bombs, and grappling hook. Each will help in combat or puzzle-solving.

Solve Puzzles and Investigate Kidnappings

Along the way, you’ll face trials and puzzles that challenge your thinking. Talk to locals, gather clues, follow leads, chase suspects, and uncover the truth behind the mysterious kidnappings.

Key Features


The Developer

Mathias, the solo developer behind the game, shares his story: "Like many, my love for video games began in childhood, back in the '90s. I’ve always been fascinated by their creative potential. Since then, I’ve spent all my free time making my own games. And now, after 12 years of work, I can finally announce 'Zefyr: A Thief's Melody', a game that captures the kind of experience I would’ve loved as a kid. It’s a delicate balance of adventure, exploration, humor, and feel-good vibes."

On the ambition of the project, he adds: "I've always loved coding, drawing, making music, and creating worlds and stories. So what better way to do all of that at once than by making a video game?"

Call to Action

To support the development of Zefyr: A Thief's Melody, feel free to add the game to your Steam Wishlist. Every wishlist helps increase the game’s visibility.

For more information, exclusive content, and updates on Zefyr: A Thief's Melody, follow Oneiric Worlds on social media. If you're curious about the development process, check out the developer blog or YouTube dev channel (in French).

About Oneiric Worlds

Oneiric Worlds is the indie game studio of (somewhat naïve) solo developer Mathias Fontmarty. His goal is to create inspiring and soothing games. He is known for his previous creations: Slide: Animal Race, a local multiplayer animal racing game, and Silent Night: A Christmas Delivery, a chill high-score game where you control Santa's sleigh.

Links & Media


Contact

Mathias Fontmarty
Indie Game Developer
contact@oneiricworlds.com
https://www.oneiricworlds.com