The wait is nearly over for fans of atmospheric puzzle-adventures. Today, Budapest-based Zadbox Entertainment and indie publishing powerhouse Blue Brain Games officially announced that the highly anticipated Dimhaven – The Lost Source will launch on PC via Steam in June 2026.

Coming from the creative minds behind the benchmark adventure title Quern: Undying Thoughts, this new first-person mystery is already a heavy hitter on player wishlists. With over 60,000 fans waiting to step into the mist-shrouded world of Dimhaven, the game promises a blend of “retro-European” aesthetics and the deep, logic-driven puzzles that Zadbox is famous for.

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A Paradise Frozen in Time

In Dimhaven – The Lost Source, you step into the shoes of Emily Ravenstone. Your journey begins with a personal mission: investigating the mysterious disappearance of your uncle. This quest leads you to the titular island of Dimhaven—a place that once served as a vibrant European-inspired tourist paradise but now stands eerily abandoned.

“Dimhaven offers a haunting sense of nostalgia—a world that feels both familiar and mysterious.”

The world-building draws heavily from mid-century European architecture and design, creating a unique “realistic retro” atmosphere. Players will explore:

• Abandoned tourist sites and crumbling luxury resorts.
• Eerie natural landscapes hidden behind the mist.
• Forgotten interiors filled with the remnants of those who vanished.

Investigative Gameplay

Unlike standard “walking sims,” Dimhaven is built on a foundation of complex, interconnected puzzles. To solve the mystery, you’ll need more than just a sharp eye.

• The Camera & Notebook: These aren’t just cosmetic items; they are Emily’s primary investigative tools. You’ll use the camera to capture crucial details and the notebook to track clues and decipher the strange events of the “Ravenwood legacy.”
• Narrative through Exploration: Much of the story is told through environmental cues—documents, discarded objects, and the very architecture of the island itself.
• A “Lost Tape” Preview: To celebrate the announcement, the team released a “lost tape” from Dimhaven. Rather than a traditional fast-paced trailer, this footage focuses on the mood and atmosphere, giving players a window into the lonely, beautiful world they will inhabit this June.

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An Indie Powerhouse Partnership

The collaboration between Zadbox Entertainment and Blue Brain Games marks a significant milestone. While Zadbox brings the puzzle-design pedigree of Quern (which holds a 91% positive rating on Steam), Blue Brain Games is moving into the publishing space for the first time.

Blue Brain Games is best known for the critically acclaimed The House of Da Vinci trilogy, which has reached over 5 million players worldwide. This partnership combines Zadbox’s innovative narrative-puzzle design with Blue Brain’s expertise in bringing high-quality puzzle adventures to a global audience.

Try the Demo Today

If you can’t wait until June, a free demo is currently available on Steam. It offers a substantial glimpse into the game’s first chapter, allowing you to test your wits against the island’s initial riddles and soak in that haunting atmosphere.

Wishlist Dimhaven – The Lost Source on Steam now to stay updated on the exact June release date!

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Are you a fan of the classic “Myst-style” adventure, or do you prefer the mechanical puzzles of The House of Da Vinci? Let us know in the comments below!

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