For fans of the highly popular anime and light novel series, Sword Art Online, this IBM Japan's latest VRMMO (Virtual Reality Massively. IBM Developed Sword Art Online Into An Incredible Virtual Reality Experience. Futurism. Loading. At least, until it's up to Sword Art Online standards. Cloud version control hosting for game developers. SAO's Legend is a free-to-play browser-based MMORPG where players dive into the world of Aincrad as one of four Sword Art Online characters. . If Sword Art Online was real, would you just live in games forever?.