Sword Art Online: Calibur

ソードアート・オンライン キャリバー

Source

Sword Art Online
ソードアート・オンライン
novel

**Read the novel that ignited the phenomenon!** In the year 2022, gamers rejoice as Sword Art Online - a VRMMORPG (Virtual Reality Massively Multiplayer Online Role Playing Game) like no other - debuts, allowing players to take full advantage of the ultimate in gaming technology: NerveGear, a system that allows users to completely immerse themselves in a wholly realistic gaming experience. But when the game goes live, the elation of the players quickly turns to horror as they discover that, for all its amazing features, SAO is missing one of the most basic functions of any MMORPG - a log-out button. Now trapped in the virtual world of Aincrad, their bodies held captive by NerveGear in the real world, users are issued a chilling ultimatum: conquer all one hundred floors of Aincrad to regain your freedom. But in the warped world of SAO, “game over” means certain death - both virtual and real… *Source: Yen Press, Vol. 1*

Prequel

Sword Art Online: Phantom Bullet
ソードアート・オンライン ファントム・バレット
manga

A year after Kazuto and Asuna escaped from Aincrad, the deadly setting of Sword Art Online, they're still coping with the aftermath as they try to recover from the harrowing experience. Meanwhile, there's a new VRMMO game sweeping the world's gamers--Gun Gale Online. When a mysterious player who calls himself "Death Gun" claims to be responsible for real-world deaths, Kazuto (aka Kirito) is recruited to enter the game to investigate, bringing an end to his hard-won peace! (Source: Yen Press) *Note: Covers the Phantom Bullet Arc from Volumes 5 and 6 of the light novel series.*

Prequel

Sword Art Online: Mother’s Rosary
Sword Art Online: Mother's Rosario· ソードアート・オンライン マザーズ・ロザリオ
manga

Kirito and Sinon's battle with Death Gun is over, but mere weeks later, something strange is afoot in the next-generation VRMMO ALfheim Online. A new duelist with a custom sword skill is defeating all comers--including Kirito! But when Asuna goes to face this duelist, she receives something she never expected: an invitation to an exclusive guild! But what is their aim? The Mother's Rosario arc begins! *Note: Covers the Mother's Rosario Arc from Volume 7 of the light novel series.* (Source: Yen Press)

Sequel

Sword Art Online: Project Alicization
ソードアート・オンライン プロジェクト・アリシゼーション
manga

Kirito awakens in a vast, fantastical forest filled with towering trees. In his search for clues to the truth of his surroundings, he encounters a young boy who seems to know him. He ought to be a simple NPC, but the depth of his emotions seem no different than a human. As they search for the boy's parents, Kirito finds a peculiar memory returning to him. A memory from his own childhood, of this boy and a girl, too, with golden hair, and a name he should have never forgotten—Alice. (Source: Yen Press)

Side Story

Sword Art Online: Ordinal Scale
ソードアート・オンライン -オーディナル・スケール-
manga

In 2022, the world of virtual reality was upended by the arrival of a new invention from a genius programmer, Akihiko Kayaba, called NerveGear. It was the first full-dive system, and with it, came endless possibilities to VRMMORPGs. In 2026, a new machine called the Augma is developed to compete against the NerveGear and its successor, the Amusphere. A next-gen wearable device, the Augma doesn't have a full-dive function like its predecessors. Instead, it uses Augmented Reality (AR) to get players into the game. It is safe, user-friendly and lets users play while they are conscious, making it an instant hit on the market. The most popular game on the system is "Ordinal Scale" (OS), an ARMMORPG developed exclusively for the Augma. Asuna and the gang have already been playing OS for a while, by the time Kirito decides to join them. They're about to find out that Ordinal Scale isn't all fun and games... (Source: Aniplex USA) *Note: Includes 3 extra chapters.*

Alternative

Calibur Sukoshi Shippai-han
Sword Art Online SS: Caliber SS-han· ソードアート・オンライン SS キャリバーSS版
novel

The alternative version to the Caliber SS in volume 8, where they decided not to save Freya in the dungeon. The SS in the title means 少し失敗 (sukoshi shippai) which translates to Slight Failure.