Is Sword Art Online: Lost Song co-op?

Yes, Sword Art Online: Lost Song supports co-op.

Does Sword Art Online: Lost Song have PvP?

Yes, Sword Art Online: Lost Song has player-versus-player modes.

Do we both need to own Sword Art Online: Lost Song to play together?

Yes. Sword Art Online: Lost Song is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.

How many people play Sword Art Online: Lost Song?

About 5 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up — what game do we play?Compare two Steam libraries →

Multiplayer games › RPG › RPG

Is Sword Art Online: Lost Song multiplayer or co-op?

Yes — co-op and PvP. Sword Art Online: Lost Song is a rpg game released in 2018, 80% positive on Steam (1,966 reviews), with 5 playing right now. $4.99 on Steam.

Co-opPvPSingle-player tooRPG · RPG

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…

How Sword Art Online: Lost Song plays with friends, according to Steam

Online co-op: Yes
Local / split-screen co-op: Not listed on Steam
Online PvP: Yes
LAN play: Not listed on Steam
Single-player mode: Yes
Controller: Partial controller support

Steam's own category list for the game, as of 2026-09-09. "Not listed" means the store page does not claim that mode; community mods or Remote Play can still add it.

Steam tags: RPG, Anime, Multiplayer, Character Customization, Open World, JRPG, Fantasy, Adventure

Do you and a friend both own Sword Art Online: Lost Song?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Sword Art Online: Lost Song is one of them — then helps you pick tonight's game with a weighted roll or a bracket.

Or open the Steam store page.

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Tired of Sword Art Online: Lost Song? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Sword Art Online: Lost Song co-op?: Yes, Sword Art Online: Lost Song supports co-op.
Does Sword Art Online: Lost Song have PvP?: Yes, Sword Art Online: Lost Song has player-versus-player modes.
Do we both need to own Sword Art Online: Lost Song to play together?: Yes. Sword Art Online: Lost Song is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.
How many people play Sword Art Online: Lost Song?: About 5 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; page updated 2026-09-23. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. Ready Up is a Somebody Decide program. How the data works · Legal & privacy · All types · Game Pass