Ys IX: Monstrum Nox

Overview

App ID1351630

Release dateJul 6, 2021

Last change number37444986

Last record update7 hours ago

App info

App type

Game

Developer

Nihon Falcom, PH3 GmbH, Engine Software BV

Publisher

NIS America, Inc.

Steam profile

Counts toward game count and achievement totals · checked Nov 1, 2025

Franchise

Ys

Platforms

Windows 64-bit

Steam Deck

Verified

Controller

Full support

Features

11

Single-playerFull controller supportSteam AchievementsSteam Trading CardsSteam CloudRemote Play TogetherCo-opShared/split screen co-opShared/split screenMulti-playerFamily Sharing

Related apps

• FranchiseYs

Patches

Builds

7

Build	Branch	Updated
16619765	public	Dec 9, 2024
16619765	version_1.1.4	Dec 3, 2024
8809702	version_1.1.3	May 25, 2022
8007048	version_1.1.2	Jan 12, 2022
6999994	version_1.0.5	Jul 25, 2021
6982068	version_1.0.4	Jul 8, 2021
5370755	local	Aug 4, 2020

Packages & DLC

DLCs

8

ID	Name	Price (US)
1627580	Not on the store yet	—
1627581	Not on the store yet	—
1627582	Not on the store yet	—
1627583	Not on the store yet	—
1627584	Not on the store yet	—
1627585	Not on the store yet	—
1627586	Not on the store yet	—
1636780	Not on the store yet	—

Depots

Depots

12

ID	Name	Systems	Size	Download	Manifest
228983	— shared from 228980	Windows	—	—	—
228988	— shared from 228980	Windows	—	—	—
228990	— shared from 228980	Windows	—	—	—
1351631	—	All	8.87 GB	5.78 GB	3164049132182838365
1627580	— DLC 1627580	All	81.4 KB	41.6 KB	9147202980883179437
1627581	— DLC 1627581	All	178.5 MB	49.8 MB	8277111982943223801
1627582	— DLC 1627582	All	65.5 MB	30.6 MB	8754348794421106824
1627583	— DLC 1627583	All	159.3 MB	152.8 MB	2978618969636615713
1627584	— DLC 1627584	All	492.5 MB	467.7 MB	8552363550502815271
1627585	— DLC 1627585	All	20.4 MB	19.3 MB	7510965904770597964
1627586	— DLC 1627586	All	54.8 MB	52.5 MB	5074920043789009636
1636780	— DLC 1636780	All	47.9 MB	29.0 MB	7257166462989335151

Branches

7

Branch	Build	Updated	Access
public	16619765	Dec 9, 2024	Open
version_1.1.4 version_1.1.4	16619765	Dec 3, 2024	Open
version_1.1.3 version_1.1.3	8809702	May 25, 2022	Open
version_1.1.2 version_1.1.2	8007048	Jan 12, 2022	Open
version_1.0.5 version_1.0.5	6999994	Jul 25, 2021	Open
version_1.0.4 version_1.0.4	6982068	Jul 8, 2021	Open
local Local Content Server	5370755	Aug 4, 2020	Open

Configuration

Install foldersteamapps/common/Ys IX Monstrum Nox

Launch options

4

Executable	Arguments	Systems	Description
ys9.exe		All
ys9_debugopt.exe		All	English Debug Optimized
ys9_JP.exe		All	Japanese Release
ys9_debugopt_JP.exe		All	Japanese Debug Optimized

Cloud saves

Space per player953.7 MB

Filesup to 1,600

Save locations3

Root	Path	Pattern	Systems
WinSavedGames	Falcom/Ys9	*.png	All
WinSavedGames	Falcom/Ys9	*.txt	All
WinSavedGames	Falcom/Ys9	*.dat	All

Achievements

Achievements5423 hidden

Most unlocked92.1%To Freedom

Rarest6.1%King of the Monstrums

Global unlock rate

share of players who have it

• To Freedom Hidden achievement 92.1%
• Adol, the Fugitive Hidden achievement 87.8%
• Zenith of the Grimwald Achieve an S in a Grimwald Nox. 83.8%
• Monstrum Nox Hidden achievement 83.1%
• The White Cat's Melancholy Hidden achievement 71.6%
• The Feral Hawk's Fury Hidden achievement 65.2%
• Crimson King, the Radiant Hidden achievement 61.9%
• The Doll's Search Hidden achievement 59.1%
• The Raging Bull's Treasure Hidden achievement 55.3%
• Lemures Exterminator Defeat 1,000 Lemures. 55.2%
• Culling the Herd Defeat 2,000 monsters. 54.4%
• The Renegade's Secret Hidden achievement 51.8%
• Capriccio of the Prison Hidden achievement 49.6%
• Thus Spoke the Alchemist Hidden achievement 48.3%
• Heartbreaker Inflict Break 1,000 times. 48%
• Material Girl Attain 100% of all "Materials" entries in your Journal. 47.6%
• Monstrum Nox Hidden achievement 45.6%
• I Would Walk 300 Krimelye Travel a total distance of 300 krimelye. 45.3%

All 54 achievements

• Art Critic Attain 100% of graffiti discovered. 45%
• Conqueror of the Nox Clear all Grimwald Nox. 44.1%
• Overdrive Use Boost Mode 100 times. 42.2%
• Shopaholic Attain 100% of shops discovered. 41.8%
• Hermetic Bastion Attain 100% of Ritual Relics enhanced. 39.3%
• Untouchable Use Flash Move 100 times. 38.9%
• Intrepid Tourist Attain 100% of landmarks discovered. 38.8%
• Fields of Blue Attain 100% of Azure Petals found. 38.5%
• Dressed to Kill Forge an Ultimate Armor. 34.8%
• Vanquisher of the Nox Achieve an S on all Grimwald Nox. 34.1%
• Showstopper Use Extra Skills 100 times. 33.7%
• Haute Cuisine Unlock all 13 recipes at the Dandelion. 32.1%
• Impervious Use Flash Guard 100 times. 31.8%
• Banisher of Dawn Hidden achievement 31.1%
• Golden Anvil Forge Ultimate Weapons for all Monstrums (6 in total). 28.3%
• White Cat, the Nimble Hidden achievement 26.1%
• Twilight Guardian Have obtained a total of 2,000 NOX points. 24.6%
• Good Samaritan Attain 100% of all quests. 24.5%
• Ambassador of the Dandelion Attain 100% of Affinity with all characters. 23.1%
• Doll, the Resplendent Hidden achievement 22.5%
• Cartographer Complete the map of Balduq. 21.5%
• Seeker of Fortune Attain 100% of all treasure chests. 20.5%
• Raging Bull, the Unyielding Hidden achievement 20.5%
• Debonair Socialite Attain 100% of all "People" entries in your Journal. 19.1%
• Hawk, the Peerless Hidden achievement 16.8%
• Apex Predator Reach level 99 with any character. 16.6%
• Errant Millionaire Have 1,000,000 Gold in possession. 15.1%
• Monster Zoologist Attain 100% of all "Monsters" entries in your Journal. 14.8%
• Renegade, the Cunning Hidden achievement 13%
• Virtuoso Reach max level with all skills. 11.8%
• Greased Lightning Hidden achievement 11.1%
• Fleeting Mirage Hidden achievement 10.8%
• Nightmare Survivor Hidden achievement 10.6%
• Paragon Hidden achievement 8.5%
• Indomitable Champion Hidden achievement 8.5%
• King of the Monstrums Finish "Balduq Prison" by Adol Christin in its entirety by earning all achievements. 6.1%