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Sword Art Online: Lost Song

Sword Art Online: Lost Song

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 the floating land of Svart Alfheim.

Released Nov 12, 2018 Developer Artdink Publisher BANDAI NAMCO Entertainment Platforms Windows RPGAnimeMultiplayerCharacter CustomizationOpen World
View on Steam ↗ $19.99 (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

79.8%positive1,966 reviews
Recommended · 0 found this helpful

“okey i can stay here forever and sit and complain all day about this game. imma say this i enyoyed it. it was a good game. but as a 100 %er i hated it. and thats what i am i go into a game franciez and 100 % while also trying to enyoy the game but im there to 100%. my main…”

— a player, Steam review · 11 hrs played
Recommended · 0 found this helpful

“Awesome game, lots of things to do, fun combat and flying!”

— a player, Steam review · 3 hrs played
Not recommended · 0 found this helpful

“The combat, control scheme and targeting system makes this game very frustrating to play. I enjoy the story and characters and such but I can't stand the combat and dungeons, which is what you will be doing most of the time. (make sure to play as Kirito in the town hub to have…”

— a player, Steam review · 36 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live count fetched 2026-07-24 00:40 UTC · history via SteamCharts.

3playing at last check
724-hour peak
460all-time peak
0 50 100 2019 2021 2023 2025 91 avg · May 2020

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.

43achievements
10.8%median completion
2.5%rarest: ALO's Strongest Player
84.4% of players 80.2% of players 53.4% of players 43.0% of players 41.3% of players 36.6% of players 34.4% of players 23.8% of players 21.4% of players 19.6% of players 18.2% of players 17.5% of players 15.6% of players 14.5% of players 14.4% of players 14.0% of players 12.8% of players 11.6% of players 11.3% of players 11.3% of players 10.9% of players 10.8% of players 10.2% of players 9.3% of players 8.8% of players 7.9% of players 7.4% of players 7.2% of players 6.7% of players 6.5% of players 6.3% of players 5.1% of players 4.0% of players 3.8% of players 3.8% of players 3.7% of players 3.5% of players 3.4% of players 3.2% of players 3.1% of players 2.9% of players 2.8% of players 2.5% of players 84.4% 0% most earned rarest
Almost everyone has
84.4%Welcome to ALfheim Online! — Hidden achievement
80.2%Fairies in the Sky — Hidden achievement
53.4%The World of the Black Fairies — Hidden achievement
Rarest badges of honor
2.5%ALO's Strongest Player — Earn all trophies. "You are an excellent fighter. The best I have ever seen."
2.8%Skill Master — Hidden achievement
2.9%Bounty Hunter — Complete a total of 100 Extra Quests and/or Multiplayer Quests.

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-25. Steam prices vary by region — always confirm your local price on Steam.

$19.99current · sampled 2026-07-26 08:39 UTC
$19.99lowest since tracking began2026-07-25
US19.99 USD
EU19.99 EUR
UK15.99 GBP
Australia28.95 AUD
Canada24.99 CAD
Japan3,080 JPY
Brazil79.90 BRL
China88.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

China≈$13 Brazil Canada Japan US Australia UK EU≈$23

Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Mar 26, 2026
SWORD ART ONLINE Console game series has surpassed 10 million total copies sold!

🎉 Congratulations! The Sword Art Online home console game series has surpassed 10 million total copies sold! 🎉 We would like to express our heartfelt gratitude to all the players who have enjoyed our

Dec 20, 2024
SWORD ART ONLINE Fractured Daydream Demo Version Released

The demo for SWORD ART ONLINE Fractured Daydream has been released! https://store.steampowered.com/app/3319640/ Play as select characters from the roster and try the Co-Op Quest and Boss Raid! Challen

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresRPG
Player tagsRPG · Anime · Multiplayer · Character Customization · Open World · JRPG · Fantasy · Adventure · MMORPG · Action · Nudity · Singleplayer (SteamSpy community voting)
FeaturesSingle-player · Multi-player · PvP · Online PvP · Co-op · Online Co-op · Steam Achievements · Partial Controller Support
LanguagesEnglish, Japanese * , French, Italian, German, Spanish - Spain, Simplified Chinese, Traditional Chinese *
Achievements43
Estimated owners100,000 – 200,000 (SteamSpy)
Official sitehttps://www.bandainamcoent.com/games/sword-art-online-lost-song
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS *: Windows 7, 8.1, 10 (64-bit) Processor: Intel Core i3-2100 / AMD A8-5600K Memory: 4 GB RAM Graphics: GeForce GTX 650 / Radeon HD 7770 DirectX: Version 11 Storage: 7 GB available space Sound Card: DirectX compatible soundcard or onboard chipset