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Explore the world of Lost Skies in this new trailer for the upcoming cooperative survival adventure set amongst the clouds, in a vast sky of floating islands.
Limited supply available at launch. Instant setup. Join the notification list below!
Lost Skies is a cooperative survival adventure for 1-6 players set amongst floating islands in a vast sky. The game is not an MMO but focuses on smaller-scale instanced PvE multiplayer. You can take your character into your friends' worlds and continue your adventure together in this spiritual successor to Bossa's Worlds Adrift.
Bossa Studios has said dedicated servers are part of the core plan: a separate Steam app called Lost Skies Dedicated Server, with mods, custom maps and rulesets planned. It was due with the 1.0 release or shortly after, and as of September 2026 it has not been released.
Lost Skies can be played offline. However, if you want to play with others, you'll need an internet connection to join their worlds or host your own. The game supports both solo offline play and online multiplayer experiences.
Yes, the Rust-style run your own server model opens things up to mods and likely larger player numbers via modding. Custom server rules will give players freedom to create experiences including open-world PVP sandbox environments, though this will be brutal and unforgiving by design and not what the game is primarily balanced around.
Lost Skies entered Early Access on April 18, 2025 and reached its 1.0 release on September 17, 2025. Bossa Studios said a separate Lost Skies Dedicated Server app would follow 1.0. It has not appeared on Steam yet, so we cannot sell Lost Skies servers until it does.