Announcement
言語の設定方法の変更について
ゲーム内のインターフェース/字幕言語設定をSteamライブラリより変更できるよう修正しました。 1. Steamライブラリを開く 2. ゲームのタイトルを右クリックし、プロパティを選択する 3. 言語タブを開く 4. 使用したい言語をドロップダウンメニューから選択する
Read announcementSteam
Ys IX -Monstrum NOX-
Also known as Ys IX -Monstrum NOX-, steam:1732330, y9mn
Ys IX, the high-speed action RPG known for its exhilarating battles and adventure powered by special abilities, is now available on Steam®!
Last update
22 May 2026
Players now
5
Latest update
Update history
Browse past updates and patch notes for this game.
1 updates
No updates match those filters.
New updates will show up here as they ship.
Gallery
In-game media
Achievements
Community progression
Top picks from 54 Steam achievements, sorted by player unlock rates.
- To FreedomBegin your escape from the prison.95.5%
- Adol, the FugitiveClear the prologue.87.6%
- Zenith of the GrimwaldAchieve an S in a Grimwald Nox.80.6%
- Monstrum NoxClear Chapter 1.80.3%
- The White Cat's MelancholyClear Chapter 2.66.1%
- The Feral Hawk's FuryClear Chapter 3.59.5%