Sword Art Online: Hollow Fragment was first released in Japan for the PlayStation Vita.
The game was released in North America, making it accessible to the Western audience.
Sword Art Online: Hollow Fragment became available in European markets.
Players including Kirito become trapped inside the VRMMORPG Sword Art Online, unable to log out due to a system trap set by Kayaba Akihiko.
The players clear the first floor of Aincrad by defeating the floor boss, marking the beginning of their climb to escape.
Kirito and Asuna, two skilled players, meet and begin to build their relationship within the game.
Kirito defeats the floor boss on the 74th floor solo, showcasing his exceptional skills and reputation.
Players discover and gain access to the Hollow Area, a hidden virtual space within SAO, with unique monsters and quests.
The elite guild Knights of the Blood Oath, led by Asuna, consolidates power and influence to clear the game floors.
The players confront Kayaba Akihiko, the creator of SAO, in a climactic battle to clear the final floor and escape the game.
After clearing the 100th floor, players are freed from the game and return to reality.
Kirito explores the Hollow Area solo to investigate the mysterious area and uncover secrets.