Kirito awakens in a completely unknown virtual world, but something about it feels a bit familiar...
Set in Underworld, an expansive world introduced in the SWORD ART ONLINE anime, Kirito sets out on adventure in the series' latest RPG!
Enjoy seamless, action-packed real-time battles using a combination of sword skills, sacred arts, and your favorite SAO characters!
Kirito meets a boy named Eugeo. Somewhere deep within their hearts is a lingering promise. To fulfill that promise and avoid losing each other, they set out on adventure together. Nothing will keep them from reaching their goal.
Login or register at the official Steam Website and download Steam client
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Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-09-28
Are We Entering the Age of Gaming Leak Culture?
Once upon a time, a video game leak seemed nearly as an almost innocent accident, a gaming magazine published a screenshot too early or a store put a copy on a shelf before the scheduled release date…
As you probably already know, at YUPLAY we constantly strive to discover new and exciting ways to regularly promote the best video game titles directly to you. We do that quite often with our storewide discount campaigns, but we were looking for another way to do it without the need for a whole promotional event…
