So... is Ys finished or not?
NO, it is not finished.
Why?
The anime finished before the manga:
Anime finished: July 21, 1993
Manga finished: May 01, 2012
MangaUpdates contains information about the anime adaptation and indicates that it is incomplete.
Watching Order (by release date)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
The mangas and the non-core contents are excluded by default, but you can enable them by clicking the buttons below:
Ys
Ys イース
Anime - Base
Release date: November 21, 1989
Ys: Tenkuu no Shinden - Adol Christine no Bouken
Ys II: Castle in the Heavens
Anime - Sequel
Release date: December 16, 1992
Synopsis
The land of Esteria is under constant attack by hordes of mythical beasts, pushing its people to the brink of despair. A prophecy foretells the arrival of a hero who can save them.
Adol Christin, a young adventurer, arrives in Esteria after a shipwreck. Guided by a fortuneteller, he embarks on a quest to find powerful artifacts known as the Books of Ys.
Adol, along with his companions, must overcome numerous dangers and challenges as they journey across the island. Their success will determine the fate of Esteria and whether Adol is the hero prophesied to bring peace.