Ys is a Japanese series of action role-playing games developed by Nihon Falcom. The series chronicles the life of the adventurer Adol Christin.
The first game in the series, Ys I: Ancient Ys Vanished, was released on the NEC PC-8801 in 1987. Ys games have since been ported and released on many other platforms. As of 2017, Ys had sold over 4.8 million copies worldwide. From Wikipedia
