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Sword Art Online: Lost Song official game artwork

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Sword Art Online: Lost Song Wiki

Enter the VRMMO world of the much-loved anime SWORD ART ONLINE! In Alfheim Online, a world of fairies and magic, you become the hero of the series, Kirito, and together with your wondrous friends try to conquer

Steam ↗Windows
GameWiki EditorialReviewed 5 guide topics

GET YOUR BEARINGS

About Sword Art Online: Lost Song

Sword Art Online: Lost Song drops players into the VRMMO realm of Alfheim Online, where they assume the role of Kirito alongside familiar faces and new allies. The game blends aerial and ground combat, letting you explore the floating island of Svart Alfheim while battling powerful foes.

Both solo and online experiences are supported, with options for co‑op, PvP, and online PvP. Players can shape their character through skill choices, and the game tracks progress via Steam achievements and cloud saves.

01 / THE GUIDE

Setting and Story

The narrative unfolds in Alfheim Online, a world of fairies and magic, centered on the floating land of Svart Alfheim. Players become Kirito, the series hero, and join new characters Seven, Rain, and Sumeragi in a brand‑new storyline.

The story is built around conquering the floating island and confronting powerful enemies that appear throughout the adventure, reinforcing the anime’s themes of friendship and bravery.

  • Pay attention to dialogue with new characters; they often hint at upcoming challenges.
  • Explore the floating terrain thoroughly to discover hidden encounters.

02 / THE GUIDE

Gameplay Modes

Combat alternates between fast‑paced aerial battles and ground engagements, delivering seamless action sequences. Players can choose how to evolve their abilities, influencing both sky and land encounters.

The game offers single‑player progression as well as multiplayer options, including co‑op missions and PvP arenas, allowing varied playstyles.

  • Mix aerial and ground skills to handle diverse enemy types.
  • Try co‑op missions early to learn team dynamics.
Sword Art Online: Lost Song official gameplay screenshot
Publisher-provided gameplay image · Artdink

03 / THE GUIDE

Multiplayer Features

Lost Song supports online co‑op, letting players team up with friends to tackle challenges together. It also includes PvP and online PvP modes for competitive play.

Steam achievements track both solo and multiplayer milestones, and cloud saves keep progress synchronized across sessions.

  • Coordinate skill choices with teammates for balanced parties.
  • Use Steam Cloud to switch between devices without losing progress.

04 / THE GUIDE

Progression and Skills

Players select skills and decide how to evolve their character, with growth directly affecting battle intensity. The more the character develops, the more epic the battles become.

Skill choices are unrestricted, allowing personal playstyle development throughout the game.

  • Focus on a skill tree that complements your preferred combat style.
  • Regularly review skill options to adapt to tougher enemies.

05 / THE GUIDE

Platform and Support

The title is available on Windows via Steam, offering partial controller support for those who prefer gamepads. Family Sharing is also enabled, allowing multiple accounts to access the game.

Mac and Linux versions are not listed, focusing the release on the Windows platform.

  • Test controller settings early to ensure comfortable controls.
  • Enable Family Sharing to let friends try the game without separate purchases.

WATCH THE GAME

Sword Art Online: Lost Song videos

Official trailers & gameplay

INSIDE THE WORLD

Screenshots & game images

5 official screenshots

IN THIS WIKI

Your reading checklist

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COMMUNITY

Player discussion

    QUICK ANSWERS

    Sword Art Online: Lost Song FAQ

    Can I play Sword Art Online: Lost Song without an internet connection?

    Yes, the single‑player mode works offline, though online features like co‑op and PvP require a connection.

    Does the game support controller input?

    Partial controller support is included, allowing gamepad use for many actions on Windows.

    Are my game progress and achievements saved across devices?

    Steam Cloud syncs progress, and Steam Achievements record milestones regardless of where you play.

    More Sword Art Online: Lost Song guides

    SOURCES & CREDITS

    Official resources and further reading

    Original editorial guidance. Game imagery and trailers are provided by the publisher through Steam. Media and reference links checked 2026-10-22. Game versions, supported platforms, and balance can change; consult the linked release notes for current details.