Ys Online: The Ark of Napishtim is a free-to-play role-playing game that has been adapted from the sixth generation of the legendary Japanese franchise, the Ys series. Developed by ZlongGames and supervised by Falcom, the game inherits the soul of popular JRPG adventures. The game is set in the world of Ys, where adventurers accompany Adol to the "Great Vortex of Canaan" to meet the mysterious Rehdan Sisters and explore the "Ruins of the Winged One Civilization." The game features a heartwarming story, fantastic adventure, and a magnificent cast of characters.

The game has all the fan-favorite characters, including the red-haired adventurer Adol, the mysterious Rehdan priestesses Olha & Isha, the commander with a dire mission Ernst, and the powerful Geis, with new character-exclusive side stories. Classic maps such as Limewater Cave, Zemeth Island, and the Grana-Vallis Mountain have been revamped, enriching the emotional experience signature of Ys. The game also adds many new game varieties, such as dungeons, puzzle-solving, competitions, and the role progression mode, making it more directable and enriching this high-fantasy adventure RPG.