Sword Art Online: Lost Song brings the floating world of Alfheim Online to your Windows desktop. It is an action role-playing game developed by Artdink and published by Bandai Namco, and this PC release lets you jump into its aerial combat and character-driven story without a console. The repack here compresses the full install into a 4 GB download split into two parts, so you can get the game onto your drive quickly and start playing.

If you enjoy anime-inspired RPGs with real-time swordplay, party management, and a story that sits inside the SAO timeline, this one fits neatly into that rotation. You'll find familiar faces from the series, a large roster of playable characters, and combat that mixes ground combos with free-flight battles in the sky.

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Technical Specifications

What Sword Art Online: Lost Song Is

Lost Song is set in Alfheim Online, the fairy-themed VRMMO from the Sword Art Online universe. You follow a new story arc that involves a mysterious song, a floating continent called Svart Alfheim, and a cast that includes Kirito, Asuna, Leafa, Sinon, and plenty of other series regulars. The game is built around exploration and combat in equal measure: you travel across open field maps, take on quests from NPCs, and engage enemies in real-time battles.

The headline mechanic is flight. Unlike earlier SAO games that kept you mostly on the ground, Lost Song lets your characters take to the air and fight in three dimensions. You can chain sword strikes, dodge, and cast magic while hovering or flying, which changes how you approach encounters. Ground combat still matters, and switching between the two styles keeps fights from feeling repetitive.

The PC version runs on Microsoft Windows and supports English, so you can follow the story and menus without a translation patch. It is a single-player experience, which makes it a good pick if you want a story-driven RPG you can work through at your own pace.

Key Features

• Real-time action combat: Fight with sword combos, magic spells, and aerial maneuvers instead of turn-based menus.
• Free-flight battles: Take to the sky and engage enemies in three dimensions across open maps.
• Large playable roster: Build a party from a wide selection of SAO characters, each with their own weapon type and skill set.
• Story set in Alfheim Online: Follow a dedicated narrative arc with cutscenes and character interactions.
• Quest and exploration loop: Accept missions, explore Svart Alfheim, and level up your team.
• English language support: Story text and menus are available in English on PC.
• Compact repack: The full game is packaged into a 4 GB download split across two RAR parts.

Combat and Gameplay

Battles in Lost Song are fast and skill-based. You control one character at a time while your party members act on their own, and you can switch between them mid-fight. Each character has a distinct weapon and a set of skills tied to it, so experimenting with different party compositions is part of the fun. Magic is handled through a skill system that includes offensive spells, buffs, and healing, and you'll want to balance those with melee output.

Flight adds a layer of positioning that ground-only RPGs don't have. Enemies can attack from above or below, and you can use vertical movement to dodge or line up attacks. The controls take some adjustment if you're used to grounded combat, but once you get the hang of altitude and camera angles, aerial fights become the most satisfying part of the game.

Progression comes from leveling characters, upgrading weapons, and completing quests. The game rewards you for rotating your party rather than sticking with one favorite, since underused characters fall behind in levels. If you like tinkering with builds and party setups, there is enough depth here to keep you busy.

Who It's For

This game is aimed at fans of the Sword Art Online anime and light novels who want to spend more time in that world. It also appeals to players who enjoy action RPGs with anime-style visuals and don't mind a story-heavy structure. If you prefer competitive multiplayer or deep loot systems, this isn't that kind of game. It is a single-player adventure with a fixed cast and a linear-to-open story progression.

If you're building a library of anime RPGs on PC, you might also want to look at DragonSword: Awakening (v1.0.9 & ALL DLC) for a different take on the genre, or Lost (Uncensored) if you want something with a more mature tone.

System Requirements

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

These are the published minimums for the PC release. The 7 GB storage figure is the installed footprint, which is larger than the 4 GB download because the repack is compressed. Make sure you have enough free space on the drive where you plan to install, and keep in mind that the game requires a 64-bit version of Windows.

Pros & Cons

Pros

• Flight-based combat gives the action a distinct feel compared with other SAO games.
• Large roster of fan-favorite characters to build a party around.
• English support on PC means no extra patching for the story.
• Compact 4 GB repack is quicker to download than a full uncompressed install.
• Modest system requirements make it accessible on older 64-bit machines.

Cons

• The story assumes familiarity with the SAO cast, so newcomers may feel lost.
• Combat controls, especially in the air, take time to learn.
• Single-player only; there is no co-op or online play in this release.
• Repack requires extracting multiple RAR parts before installation.

Version Freshness and Publisher Details

This listing is a repack of the PC release of Sword Art Online: Lost Song, which originally launched on Windows in November 2018. The game was developed by Artdink and published by Bandai Namco. The repack itself is provided by Mike, the uploader credited on this page. Because this is a repack rather than an official storefront build, there is no separate patch number attached to it here; the version field above is an estimate based on the release information available, and you should treat it as such rather than as a confirmed build number.

If you want the most current official build with automatic updates, the publisher's store page is the place to check. This download is best suited for users who want a self-contained offline copy.

How to Install

1. Download both RAR parts from the links on this page.
2. Extract the parts using WinRAR or 7-Zip. If you're unsure how to handle multi-part archives, follow the extraction guide linked in the source notes.
3. Run Setup.exe inside the extracted folder.
4. Complete the installation and launch the game.

You need both parts to extract the archive successfully; downloading only one will leave you with an incomplete set of files. There is no password on the game files, so if an old version of your extraction tool asks for one, update the tool rather than searching for a password. If a part reports as damaged or you get a CRC error, re-download that specific part.

Download Links

The repack is split into two parts. Part 1 is 2 GB and Part 2 is 1.6 GB.

Part 1: 1Fichier | Megaup | Mediafire | Uptobox | Multiup

Part 2: 1Fichier | Megaup | Mediafire | Uptobox | Multiup

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Final Notes

Lost Song is a solid pick if you want an action RPG that leans into the SAO universe and gives you something different from the usual ground-based combat. The flight system is the reason to play it, and the character roster gives you room to experiment. Keep your expectations in line with a 2018 console-to-PC port: it is not a technical showcase, but it runs on modest hardware and delivers a complete story.

If this game isn't quite what you're after, browse the rest of the library. RAILROADS Online offers a very different kind of sandbox experience, and there are plenty of other genres to explore. If you enjoy this game, consider supporting the developers by buying an official copy.

Looking for more top-rated recommendations? Check out our complete guide to the Best Nintendo Switch Games, Anime.

Frequently Asked Questions & Setup Guide