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Session-based Co-op Survival Sandbox (up to 5 players)

Lost Skies

Lost Skies is a cooperative, open-world survival sandbox from Bossa Studios (creators of Worlds Adrift) and publisher Humble Games, in which up to five players explore floating islands, pilot custom-built airships, and uncover the mystery of a fractured world. Massively Overpowered's own coverage is explicit that, unlike Bossa's earlier Worlds Adrift, "it's not an MMORPG" — sessions are capped at five players rather than a persistent shared world, so it is catalogued here as a non-MMO reference. It entered Steam Early Access on April 18, 2025, and reached its full 1.0 launch on September 17, 2025.

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Platform availability

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Highlighted platforms are confirmed in MMOFinder’s current profile. Dimmed platforms have no confirmed listing.

Status
Active; reached its full 1.0 launch on September 17, 2025
Business model
Buy-to-play
Genre
Session-based Co-op Survival Sandbox (up to 5 players)
Platforms
Windows
Developer
Bossa Studios (Bossa Games)
Publisher
Humble Games
Profile
Full
Visual playstyle profile

MMO DNA

A visual fingerprint built from MMOFinder’s current verified catalog fields—not a review score.

PvECombat focusPvP

combat_focus

SoloPlay styleGroup

play_style

StructuredWorld structureSandbox

world_structure

TargetedCombat feelAction

combat_feel

HousingNot recordedCraftingNot recordedTradingNot recordedControllerNot recordedPvENot recordedPvPNot recorded
Player fit

Why you might like it

  • Not a persistent MMO; up-to-five-player cooperative survival combat and exploration aboard customizable airships, playable solo or with friends
  • Custom-built, upgradeable airships as the centerpiece of exploration and combat across floating islands
  • Developed by Bossa Studios (Bossa Games), published by Humble Games.
Before you play

Things to consider

  • Active; reached its full 1.0 launch on September 17, 2025
  • Sourced from Massively Overpowered's Early Access and 1.0 launch coverage, and Gematsu; treat details as a research summary rather than a live, first-hand playtest.
  • This is a small-group (up to 5-player) co-op survival game, not a persistent shared-world MMO — it is catalogued here as a non-MMO reference only.
Transparency

Research record

Last checked
2026-09-07
Profile depth
Full
Source note
Massively Overpowered’s Early Access and 1.0 launch coverage, and Gematsu
No direct official link verified in the current record.
Profile verification

What MMOFinder has checked

6/6documented areas
  • Gameplay featuresStructured gameplay fields were source-checked for this profile.Verified
  • Gameplay mediaTwo source-attributed gameplay images are recorded.Verified
  • Source trail1 linked source is recorded for review.Verified
  • Last reviewedCatalog fields reviewed Aug 16, 2026.Verified

Coverage measures documentation completeness—not game quality, popularity or an endorsement.

How verification works

Game details can change. MMOFinder separates verified catalog fields from information that has not yet been confirmed.

Explore connections

Lost Skies relationship map

Follow verified catalog signals to another world.

Current profileLost SkiesStart here
Combat matchZulaBoth cataloged with Not yet verifiedGenre & setting/TG/MUDAlternative profile where no exact genre match is recordedShared featuresZezenia OnlineCatalog features have since divergedBusiness modelZentia OnlineBoth recorded as Not yet verified

Connections use current MMOFinder catalog fields—not review scores or paid placement.

Game history

Lost Skies timeline

A concise timeline built only from dates and lifecycle fields recorded in MMOFinder.

  1. —
    Released

    MMOFinder records Lost Skies as released in —.

  2. Current
    Catalog status

    Development / Early Access

  3. 2026-08-16
    Research checked

    Core catalog fields were reviewed for this profile.

Terms on this profile
Media

Lost Skies screenshots & gameplay

Two verified gameplay images for a quick look at the game in action.

Source: YouTube gameplay video

Gameplay, availability and research notes

Lost Skies Lost Skies is a cooperative, open-world survival sandbox from Bossa Studios (creators of Worlds Adrift) and publisher Humble Games, in which up to five players explore floating islands, pilot custom-built airships, and uncover the mystery of a fractured world. Massively Overpowered's own coverage is explicit that, unlike Bossa's earlier Worlds Adrift, "it's not an MMORPG" — sessions are capped at five players rather than a persistent shared world, so it is catalogued here as a non-MMO reference. It entered Steam Early Access on April 18, 2025, and reached its full 1.0 launch on September 17, 2025.

The lifecycle record is Active; reached its full 1.0 launch on September 17, 2025, with verified platforms of Windows. MMOFinder lists Bossa Studios (Bossa Games) as developer and Humble Games as publisher.

The guidance and platform availability above were checked on 2026-09-07 against the linked sources (Massively Overpowered’s Early Access and 1.0 launch coverage, and Gematsu). Continue through Similar Games, filter the MMO database, or compare profiles side by side.

Continue discovering

If you like Lost Skies…

These alternatives share verified genre, platform, access-model or gameplay signals with Lost Skies. Connections describe catalog overlap rather than a quality ranking.

Why it connectsAlterVerseBoth are part of MMOFinder's catalog, though genre classifications differ (Session-based Co-op Survival Sandbox (up to 5 players) vs. Science-fiction social sandbox metaverse).Science-fiction social sandbox metaverse · Planned free hub with blockchain-linked ownershipWhy it connectsMetalcoreShared online game, catalog classification signals, though genre labels differ (Session-based Co-op Survival Sandbox (up to 5 players) vs. Open-world Mech Combat MMO).Open-world Mech Combat MMO · Free-to-play (with Web3/blockchain asset ownership)Why it connectsA Tale of ToastBoth are part of MMOFinder's catalog, though genre classifications differ (Session-based Co-op Survival Sandbox (up to 5 players) vs. Classless open-world fantasy MMORPG).Classless open-world fantasy MMORPG · Free-to-play with cosmetic purchasesWhy it connectsA World of KeflingsShared online game, catalog classification signals, though genre labels differ (Session-based Co-op Survival Sandbox (up to 5 players) vs. City-building game).City-building game · Buy-to-playWhy it connectsAirRivalsShared online game, catalog classification signals, though genre labels differ (Session-based Co-op Survival Sandbox (up to 5 players) vs. Sci-fi flight combat MMO).Sci-fi flight combat MMO · Free-to-playWhy it connectsFragmentedShared session, survival, based classification signals, though genre labels differ (Session-based Co-op Survival Sandbox (up to 5 players) vs. Session-based sci-fi survival game (not a persistent MMO)).Session-based sci-fi survival game (not a persistent MMO) · Buy-to-play (free with The Repopulation)
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