Sword Art Online x .hack// -The Twilight Ultimatum Link-

Sword Art Online x .hack// -The Ultimatum Link of Twilight- is crossover action RPG title games between two popular series of MMO, Sword Art Online and .hack// developed by CyberConnect 2, Epic Production, and Aquaria which publishers by Bandai Namco Entertainment which the game is using graphic based with Unreal Engine 5, and available on PlayStation 5, Xbox Series X, and Steam.

The story will be a second time for collaboration series between two titles since .hack//New World Vol.1 Silver Maiden, and this game will reincorporated together between both titles together with featuring crossovers character from .hack series and Sword Art Online franchise, although it sets in SAO game universe, instead the main canon universe one. The story start with Kirito investigating missing files regarding SAO projects by Kabaya Akihiko, and he found out something interesting as he discovering another game online that he never even aware about which was known as The most popular MMORPG, The World which was powerful rivalry game online from Alfheim online.

Gameplay elements will be mixed between Sword Art Online and .hack//Link -RISING GEAR- since it is an action RPG combining together as one new unique games and also featuring a brand-new system which sync the combat system between party to party together and new hacking system.

Synopsis
In the late 2026 A.D. since following the Alicization Lycoris, the heroes of the Sword Art Online Game MMORPG Survivor, Kirito or so his player name, Kazuto Kirigaya right now is investigating regarding about the old secret projects regarding SAO which was left behind by the creators, Kabaya Akihiko containing a secret information about the true causes behind death of the players which used to be caused by Damages Brain from Nerve Gear.

He found nothing from those information secret files from him, except one keywords, which was read spells about The World.