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Press release;
[April 4th, 2025].
The San Francisco-based (CA, the US) indie games publisher Humble Games and London-based (the UK) indie games developer Bossa Studios, are today very happy and excited to announce that their co-op open-world survival adventure “Lost Skies“, is coming to Steam Early Access on April 18th (2025).

“Are you ready to set sail on an adventure like no other? Following an incredible reception at February’s Steam Next Fest and becoming one of the top played demos during the event, Lost Skies, the highly anticipated cooperative open-world survival adventure from Bossa Games, launches into Early Access on April 18th.” – Bossa Studios

Whether teaming up with friends or braving the skies alone, get ready to explore an extraordinary universe filled with breathtaking floating islands, rich mysteries, and ever-present dangers high above the clouds.

In Lost Skies, team up with up to five friends to explore four vast, unique floating islands teeming with ancient ruins, intricate puzzles, and hidden secrets. Design and build your own custom skyship that will serve as your home and warship, as you take on colossal enemies in the sky. Master the grappling hook for seamless navigation, harness advanced technology to manipulate gravity, and shape your path through the open skies full of endless possibilities.’

Key Features:

Cooperative Gameplay: Embark on this adventure with up to five friends or tackle the skies solo.
Adventure Awaits: Engage in survival-lite gameplay without the feeling of unfair punishment as you explore fascinating ruins, solve puzzles, and uncover secrets of ancient civilizations.
Your Home in the Skies: Build and customize your very own skyship, a home among the clouds. Design it as a comfortable, welcoming haven for you and your crew, or transform it into a powerful, heavily armed battleship capable of withstanding epic aerial combat.
David-versus-Goliath Battles: Test your courage, tactics, and shipbuilding ingenuity while taking on colossal creatures in a vast world of floating islands.
Freedom To Explore: Scale towering cliffs with a grappling hook engineered for fluid movement, leap from dizzying heights with wingsuits, or glide effortlessly above the floating islands. The freedom of exploration is unmatched, allowing you to uncover hidden secrets from every possible angle.

It’s time to build your ship, assemble your crew, and venture forth into the great unknown—because in Lost Skies, survival is just the beginning. Adventurers can chart their course by wishlisting on Steam today ahead of its Steam Early Access launch on April 18th. For more information about Lost Skies, join the official Discord, visit the official website, and explore the Open Development blog. Follow Lost Skies on X, BlueSky, Facebook, YouTube, and Reddit.

About Bossa Games
Bossa Games is a multiple award-winning independent studio based in London, UK, with over a decade of great games made by its team. Bossa is recognized as one of the most creative game companies in the world, with titles such as Surgeon Simulator, I Am Bread, and I Am Fish cementing our reputation for disruption.

Bossa Games has a shared mission to ‘Forge the best co-op experiences friends will ever share together’ and our values are our guiding principles and beliefs to get us there.

About Humble Games
Best known for critically acclaimed and award-winning hits such as A Hat in Time, Forager, Project Wingman, SIGNALIS, Slay the Spire, Temtem, UNSIGHTED, Unpacking, and Wizard of Legend, Humble Games is Humble Bundle’s publishing arm, composed of a passionate and nimble team that works remotely with a collection of talented global development partners. Humble Games was founded on a shared passion to support developers and deliver excellent content and gaming experiences to players around the world, while continuing the Humble mission to be a force for good in the industry.