Ys is a Japanese series of action role-playing games developed by Nihon Falcom. Created by game designer and programmer Masaya Hashimoto and scenario writer Tomoyoshi Miyazaki, the series began with Ys I, released for the NEC PC-8801 in June 1987. Contemporary and retrospective histories have identified the original game as an important early refinement of the Japanese action role-playing genre, particularly for its accessible real-time combat and rapid pacing.
The series is one of the longest running video game franchises featuring a single protagonist in a consistent game canon. Most games are presented as reconstructions of the travel journals of Adol Christin, a red-haired adventurer who is said within the series' framing narrative to have recorded more than one hundred journeys during his lifetime. Individual installments generally follow one of those journeys and can be understood independently, although recurring characters, civilizations, artifacts, and historical events connect the games.
The games are known for real-time combat, rapid movement, large boss encounters, and prominent music. Its gameplay has been redesigned several times. The first games used contact-based combat in which Adol attacks by colliding with enemies at an angle; later groups of games used manual sword attacks and jumping, three-character parties with instantaneous character switching, and two-character combination combat.
The series has remained active across nearly four decades and has appeared on Japanese personal computers, home consoles, handheld systems, Windows, mobile devices, and cloud-gaming services. Its latest release is the expanded action role-playing game Ys X: Proud Nordics, first released for the Nintendo Switch 2 in Japan in July 2025 and internationally for Switch 2, PlayStation 5, and Windows in February 2026.
Common elements Framing and chronology Most numbered games follow the travels of Adol Christin, who leaves his home village at the age of 16 and begins his first major adventure at 17. The stories are framed as later adaptations or translations of the travel journals he wrote during his life. Falcom states that Adol left more than one hundred such records, allowing the company to depict his adventures in an order different from their internal chronology.
The numbered titles are not arranged entirely in chronological order. For example, Ys X: Nordics, the tenth numbered game, takes place shortly after Ys II, while Ys VIII: Lacrimosa of Dana occurs before Ys VI: The Ark of Napishtim. Falcom selects settings according to the story and gameplay concept under development rather than advancing continuously through Adol's life.
The following table lists the Falcom-recognized chronological order of the main adventures currently depicted in the games. The English journal names are descriptive translations of the Japanese titles shown on Falcom's series portal.
+ Adol Christin chronology Order Games 1 Ys I and Ys II 2 Ys X: Nordics 3 Ys: Memories of Celceta 4 Ys: The Oath in Felghana 5 Ys V: Lost Kefin, Kingdom of Sand 6 Ys VIII: Lacrimosa of Dana 7 Ys VI: The Ark of Napishtim 8 Ys Seven 9 Ys IX: Monstrum Nox
Ys Origin is set approximately 700 years before Ys I and does not depict one of Adol's journeys; it instead follows events in the ancient kingdom of Ys involving the twin goddesses and their search party.
Adol is generally portrayed as a silent or minimally voiced protagonist during ordinary dialogue. Other characters respond to his selected answers, while later games give him short voiced reactions and battle dialogue. Falcom president Toshihiro Kondo has described Adol as a largely mute character whose personality is expressed through his actions, reactions, and the player's interpretation.
Dogi is a recurring companion whom Adol first meets during his initial adventure. He accompanies Adol in several later games, including the journey to Dogi's homeland of Felghana and the investigation of Balduq in Ys IX: Monstrum Nox. Individual installments generally introduce a new regional cast, with relatively few supporting characters continuing into the next adventure. Kondo has explained that this structure allows each game to begin with Adol meeting a new group of people and conclude with his departure from them.
World and mythology The series uses altered geographic names and cultures that echo real-world regions. The games take place on the continent of Eresia, in a region called Europa, and describes journeys reaching Afroca and Orienta; individual games reinterpret rather than directly reproduce those places. Ys X draws particularly on northern maritime cultures through its Norman seafarers and Obelia Gulf setting.
The name of the series comes from Ys, the vanished civilization at the center of the first two games, which was inspired by the Breton legend of a submerged city. The first games establish the twin goddesses Feena and Reah, the Black Pearl, the six priests of Ys, Darm Tower, and an ancient winged people. Ys Origin expands the history of those elements by depicting the final period of the ancient kingdom approximately seven centuries before Adol's arrival.
Later games connect several ancient artifacts and winged figures through the civilization known as the Eldeen. Ys VI identifies the Ark of Napishtim as an Eldeen creation and links its history to mythology established in earlier installments. Falcom does not require every installment to center on the Eldeen. Kondo has said that the company has considered restoring them to a more prominent role but has sometimes avoided doing so because extensive dependence on older mythology would make new games less approachable.
Themes Although individual plots differ, exploration and the discovery of unfamiliar places remain central to the series. Kondo has described simple, immediately enjoyable action as a basic characteristic of Ys and has discussed moving its systems further toward adventure and traversal. Xseed localization staff similarly described Adol as an adventurer whose role is to explore and participate in an existing world rather than impose a fixed viewpoint upon it.
Many installments place Adol in an isolated region whose ruins, beliefs, or suppressed history affect the present. The journal framing allows those regional stories to remain largely self-contained while contributing to a broader chronology.
Gameplay The Ys games use real-time combat and generally place greater emphasis on movement and direct control than on menu-driven battle commands. Falcom has repeatedly changed the combat system while retaining an emphasis on rapid encounters, exploration, character growth, and large boss battles.
Contact-based combat Ys I and Ys II use a contact-based system commonly called "bump combat". The player damages enemies by moving Adol into them, with attacks being safer and more effective when he approaches from an offset angle rather than colliding directly with the center of an enemy's front. The system allows movement and attacking to be controlled entirely with the directional controls.
The original designers intended the simplified controls to make the role-playing game accessible while preserving positional decision-making. Falcom staff later compared the rhythm of defeating groups of weaker enemies to popping the bubbles in protective packing material, turning repeated battles and level growth into a fast, arcade-like activity.
Ys II retained the contact-based fighting and added projectile magic, utility spells, and an item that transforms Adol into a monster. In that form, he can communicate with ordinary monsters and obtain dialogue unavailable to him as a human.
Ys IV: The Dawn of Ys and the original Ys IV: Mask of the Sun later returned to variations of contact combat. Because the two games were developed separately by Hudson Soft and Tonkin House from Falcom's shared planning materials, their mechanics, maps, and stories differ.
Manual attacks and platforming Ys III: Wanderers from Ys changed to a side-view action format with manual sword attacks, jumping, crouching, and attacks performed from different positions. Falcom later remade its story as Ys: The Oath in Felghana, using the elevated three-dimensional action system introduced in Ys VI.
Ys V: Lost Kefin, Kingdom of Sand returned to an overhead view but retained a dedicated attack button. It added jumping, active shield defense, maps with different elevations, separate physical and magical development, and an alchemy system used to create spells.
Ys VI: The Ark of Napishtim established another major design model. It combines three-dimensional environments with two-dimensional character sprites and gives Adol three elemental swords that provide different attacks, magic, and traversal functions. The Oath in Felghana and Ys Origin use revisions of the same engine and place greater emphasis on platforming, aerial attacks, and boss encounters.
Party-based combat Ys Seven replaced the single-character system with a party of up to three active characters. The player controls one character while the others act automatically and can switch among them during combat. Characters use slashing, striking, or piercing attacks, and enemies may be weak or resistant to particular weapon types.
The game also introduced weapon-linked skills, Extra Skills, stun gauges, and Flash Guard. A successful Flash Guard, performed immediately before an attack connects, negates damage and provides offensive benefits. Ys: Memories of Celceta added Flash Move, which rewards a precisely timed evasion by temporarily slowing enemies.
Ys VIII: Lacrimosa of Dana expanded this structure with a castaway settlement, defensive raids, gathering and crafting, and exploration abilities associated with recruited characters and artifacts. Ys IX: Monstrum Nox retained the party combat and added supernatural traversal abilities that allow the party to run up walls, glide, grapple to distant points, reveal hidden objects, and travel through restricted passages.
Two-character combat and sailing Ys X: Nordics replaced the three-person party with Adol and Karja Balta. Solo Mode allows the player to control either character independently, while Combination Mode commands them together and emphasizes guarding, counterattacks, the Revenge Gauge, and paired skills.
Kondo said the smaller playable cast allowed Falcom to devote more development resources to the actions, animations, and relationship of the two protagonists. The supernatural bond that keeps Adol and Karja physically close also provides a narrative explanation for their combination attacks.
Ys X additionally introduces controllable sailing and naval combat. The player travels between islands aboard the Sandras, finds uncharted locations, improves the ship, attacks hostile vessels, and participates in battles to liberate occupied areas.
Recurring systems Health recovery appears in several entries, although its conditions vary. In the first games, Adol gradually recovers health by remaining stationary in safe outdoor areas, while dungeons restrict that recovery; later entries use combinations of items, equipment, rest points, facilities, or automatic restoration.
Exploration frequently provides permanent abilities that open previously inaccessible paths. Ys II gives Adol magic that includes projectile attacks, teleportation, and transformation into a monster, while Ys VI uses three elemental swords with different attacks and traversal functions. Ys: Memories of Celceta and Ys VIII provide artifacts and character-specific actions used to overcome environmental barriers. Ys IX introduces Monstrum Gifts that enable actions including wall-running, gliding, grappling, revealing concealed objects, and passing through narrow spaces. Ys X similarly uses Mana Actions for grappling, high-speed movement, manipulating the environment, and revealing hidden routes or objects.