ソードアート・オンライン オルタナティブ ガンゲイル・オンライン

In this alternate corner of the Sword Art Online universe, Gun Gale Online spins off from the main story to focus on the high-stakes, bullet-riddled battle royale of the same name. Published by Kadokawa, this short 2016–2021 comic run follows a new cast navigating the virtual world's gun-centric combat, offering a tighter, more tactical perspective on the franchise's signature virtual reality. While creator Reki Kawahara originated the setting, the series is most closely associated with writer Keiichi Sigsawa, who brings a distinct, action-oriented flavor to this spin-off. It matters as a focused, standalone entry that expands the SAO mythos into a different genre of survival gameplay.