There are officially 8 games in the main Ys series with several older games being replaced with newer up to date versions.

The current timeline for the events of the series is as follows:

1. Ys Origin - Takes place about 700 years before the start of the series

2. Ys I & II - The start of the series

3. Ys: Memories of Celceta

4. Ys: The Oath in Felghana

5. Ys V: Ushinawareta Suna no Miyako Kefin

6. Ys VIII: Lacrimosa of Dana

7. Ys VI: The Ark of Napishtim

8. Ys Seven - Takes place about 6 months after Ys VI as Geis mentioned it's been about half a year since he last saw Adol

9. Ys IX: Monstrum Nox

Ys Series

Main Series

OriginI & II: Ancient Ys VanishedThe Final ChapterIII: The Oath in FelghanaIV: Memories of Celceta
V: Kefin, The Lost City of SandVI: The Ark of NapishtimSevenVIII: Lacrimosa of DanaIX: Monstrum Nox

Replaced Games

Wanderers from YsMask of the SunThe Dawn of Ys


Legacy (Anime) – StrategyOnlineVs. Sora no Kiseki: Alternative Saga