We Love It's Guide to…
As Kirito in Underworld, explore a sprawling fantasy world, follow an altered Alicization story, and fight in real time with a party.
Released 09 Jul 2020
Explore Underworld
Chain Sword Skills
Coordinate Party Attacks
Enjoy seamless, action-packed real-time battles using a combination of sword skills, sacred arts, and your favorite SAO characters!
Developed by AQURIA Co., Ltd. · Published by BANDAI NAMCO Entertainment









Set in the virtual world of Underworld, the story follows Kirito and Eugeo as events from the Alicization arc lead into an alternate storyline with familiar and original characters.
Explore four regions made up of smaller locations, battle enemies, and take on main and side quests. The adventure is presented through frequent character conversations and story scenes alongside its exploration and combat.
Fight in real time using different weapons, sword skills, and sacred arts, while coordinating attacks with party members. Level up and develop characters through skills and equipment; online co-op lets players tackle missions together.
Reviews are mixed. Some players enjoy the alternate SAO story, its characters, and exploring Underworld, while others appreciate the combat systems, character progression, or playing co-op with friends. Common criticisms include long stretches of dialogue and cutscenes, uneven or clunky combat, and slow or repetitive questing; technical problems are also reported.
| Platforms | Windows |
|---|---|
| Achievements | 67 |
| Age ratings |
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| Players | 1–4 |
| Play modes |
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| Other modes |
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| Multiplayer | The game supports single-player and online co-op. Online co-op unlocks after completing Chapter 1, and multiple reviews describe it as letting players play most or all content together from Chapter 2 onward, including story, side quests, exploration, dungeons, bosses, raids, and DLC content. Reviews also mention 4-player raids and joining random players or friends online. |
| Multiplayer & mods | No multiplayer mod support is described. Reviews state Easy Anti-Cheat is required for online play, and disabling it removes multiplayer/co-op access. |
| Controller support | Xbox |
| Controller required | No |
| DLC / extras | 4 listed on Steam |
| DRM / EULA |
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| Content notices |
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| Website | Official website |