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AI: The Somnium Files

From PCGamingWiki, the wiki about fixing PC games
AI: The Somnium Files
AI: The Somnium Files cover
Spike Chunsoft
Unity 2017[Note 1]
Release dates
Windows September 17, 2019
OpenCritic 81
Modes Singleplayer
Pacing Real-time
Perspectives First-person, Third-person
Controls Direct control, Point and select
Genres Puzzle, Visual novel
Art styles Anime
Themes Cyberpunk, Detective/mystery, Japan, Sci-fi
Series AI: The Somnium Files
AI: The Somnium Files on HowLongToBeat
AI: The Somnium Files on IGDB
AI: The Somnium Files guide on StrategyWiki
AI: The Somnium Files on MobyGames
AI: The Somnium Files on Wikipedia
AI: The Somnium Files
AI: The Somnium Files 2019
AI: The Somnium Files - nirvanA Initiative 2022

General information

Steam Community Discussions


Source DRM Notes Keys OS
Icon overlay.png
Special Agent Edition. Only Steam code included.[2]
Microsoft Store
Microsoft Store
Xbox Play Anywhere.
Icon overlay.png

Version differences

The Limited Edition was only available from the launch date until September 24, 2019[3] and included the base game as well as a partial soundtrack.[4]
The Special Agent Edition was a limited physical collector's edition including physical goods.[2]

Game data

Configuration file(s) location

System Location
Windows %LOCALAPPDATA%\SpikeChunsoft\AI The Somnium Files\launcher.ini
Microsoft Store %LOCALAPPDATA%\SpikeChunsoft\AI The Somnium Files\launcher.ini
Steam Play (Linux) <SteamLibrary-folder>/steamapps/compatdata/948740/pfx/[Note 2]

Save game data location

System Location
Windows %LOCALAPPDATA%\SpikeChunsoft\AI The Somnium Files\PSYNCAUTOSAVE
%LOCALAPPDATA%\SpikeChunsoft\AI The Somnium Files\PSYNCDEF*
Microsoft Store %LOCALAPPDATA%\Packages\44133SpikeChunsoftCo.Ltd.429137939DA7E_f545tdr3ah1rr\SystemAppData\wgs\
Steam Play (Linux) <SteamLibrary-folder>/steamapps/compatdata/948740/pfx/[Note 2]
* is the number of the save file slot in game.

Save game cloud syncing

System Native Notes
Steam Cloud
Xbox Cloud


In-game general settings
In-game general settings
Launcher general settings
Launcher general settings
Launcher graphics settings
Launcher graphics settings

Graphics feature State Notes
Widescreen resolution
Use Lyall's fix.
4K Ultra HD
Field of view (FOV)
Select the Borderless Window Mode setting for borderless windowed mode.
Select the Windowed Window Mode setting for bordered windowed mode.
Borderless fullscreen windowed
Select the Fullscreen Window Mode setting for borderless fullscreen mode.
Anisotropic filtering (AF)
Dysfunctional setting. See Anisotropic filtering (AF).
Anti-aliasing (AA)
MSAA 2-16x[5]
Vertical sync (Vsync)
60 FPS
120+ FPS
Disabling Vsync enables 60 FPS framerate cap.[6]
Over 100 FPS causes graphical glitch in Somnium scenes; see issues unresolved.
High dynamic range display (HDR)
See the glossary page for potential alternatives.
The game engine may allow for manual configuration of the game via its variables. See the Unity page for more details.

Anisotropic filtering (AF)

Comparison of the two game settings and externally forced 16x anisotropic filtering.
Comparison of the two game settings and externally forced 16x anisotropic filtering.
The launcher has a toggle for anisotropic filtering. However, turning the setting on introduces visible artifacts without improving the visuals.[6] See sample image.
It is possible to force up to 16x anisotropic filtering through the GPU control panel. Turn anisotropic filtering off in the launcher and see the glossary page.


Keyboard and mouse, touch State Notes
See the glossary page for potential workarounds.
Mouse acceleration
Mouse sensitivity
Cursor speed in the settings only affects the speed of the keyboard-controlled cursor.
Mouse input in menus
Only if Keyboard and Mouse is selected as control method in the launcher.
Mouse Y-axis inversion
Touchscreen optimised
Touch optimized on Xbox Cloud Gaming.[7]
Controller support
Full controller support
Launcher requires keyboard or mouse.
Cursor will stay in the middle of the screen, even if controller selected as control method.
Controller remapping
See the glossary page for potential workarounds.
Controller sensitivity
Controller Y-axis inversion
Controller types
XInput-compatible controllers
Xbox button prompts
Select Gamepad from launcher.
Impulse Trigger vibration
PlayStation controllers
PlayStation button prompts
Select DUALSHOCK®4 from launcher.
Light bar support
Adaptive trigger support
DualSense haptic feedback support
Connection modes
, Wireless (DualShock 4 USB Wireless Adapter)
Bluetooth untested.
Generic/other controllers
Switch Pro Controller tested working.
Button prompts
Additional information
Controller hotplugging
Haptic feedback
Digital movement supported
Simultaneous controller+KB/M
Mouse not fully usable unless control method is Keyboard and Mouse.


Audio feature State Notes
Separate volume controls
Music, sound and voice.
Surround sound
Stereo audio of videos is mirrored into side and back speakers.
Otherwise, stereo only.
Closed captions
Mute on focus lost
Royalty free audio


Language UI Audio Sub Notes
Traditional Chinese
French translation patch is available at for Steam and Microsoft Store/Game Pass versions.
Russian translation patch is available at ZoneOfGames.
Fan translation by NAIX Translations.

Issues unresolved

Visual artifacts in somnium scenes

Visual artifacts that show up during Somnium scenes when standing still. Click here for video demonstration.
Visual artifacts that show up during Somnium scenes when standing still.
Click here for video demonstration.
When standing still in Somnium scenes, instead of environment freezing, everything speeds up and in short moment majority of game window turns artifacted white.[8]
Bug happens when framerate exceeds 100 FPS, even momentarily.
Cap the frame rate below 100 FPS.[9]
  1. See frame rate capping or simply disable Vsync to enable games own 60 FPS cap.
  2. Make sure that frame rate does not go beyond 100 FPS by capping at least couple frames below 100 FPS.
  3. When the somnium scene is over, it is safe to remove the frame-rate cap until the next one.

Game freezing and crashing during Somnium scenes

Multiple players have reported experiencing either freezes or crashes during specific Somnium scenes.[10]
Many have gotten past these problems with general troubleshooting including lowering graphical settings, updating drivers and disabling software inserting overlays into the game, but this has not worked for everyone.[citation needed]

Issues fixed

Game freezes during movie scenes

The bug seems to be affecting Windows 7 users specifically.
There is a beta available which should fix the issue.
Join beta branch[11]
  1. From Steam, open games properties and navigate into Betas tab.
  2. Give passcode Windows7Beta and submit.
  3. From dropdown menu, select Windows7_test - Windows7_Beta_Version.
  4. Close the properties window and launch the game after Steam installs the beta.
For N-versions of Windows, Media Feature Pack is required to be installed.[12] Download for Windows 7 or Windows 10.

Ending movie ignores audio language setting

The game's ending movie is presented in your UI language no matter what your audio language is set to.
A fan-made patch allows to force display of the Japanese cutscene with subtitles regardless of the UI language.
Apply AI Patch[13]
  1. Double-click on Semi-Automatic AI Patcher.cmd and keep the window open.
  2. From your Steam library, right-click on AI: The Somnium Files, and choose "Manage", and then "Browse local files".
  3. Drag and drop the AI_TheSomniumFiles_Data folder onto the Semi-Automatic AI Patcher window you opened earlier.
  4. Press Enter.

Other information


Technical specs Supported Notes
Direct3D 11
Executable 32-bit 64-bit Notes


Middleware Notes
Input InControl

System requirements

Operating system (OS) 7
Processor (CPU) Intel Core i7-3770 3.4 GHz
System memory (RAM) 4 GB
Hard disk drive (HDD) 20 GB
Video card (GPU) Nvidia GeForce GTX 460
2 GB of VRAM
DirectX 11 compatible
Sound (audio device) DirectX compatible
A 64-bit operating system is required.


  1. Unity engine build: 2017.4.17f1[1]
  2. 2.0 2.1 Notes regarding Steam Play (Linux) data:


  1. Verified by User:KingKrouch on 2019-09-18
  2. 2.0 2.1 AI: THE SOMNIUM FILES Special Agent Edition (PC) - Limited Run Games - last accessed on 2019-10-26
  3. AI: THE SOMNIUM FILES Available Now! - last accessed on 2019-09-18
  4. Petition to add final song to OST :: AI: The Somnium Files General Discussion - last accessed on 2019-09-21
    "EDIT: Nevermind, there's a high chance that it's included in the physical Limited Edition considering its OST contains 39 tracks (against 17 here), for some reason."
  5. 5.0 5.1 5.2 Verified by User:KingKrouch on 2019-09-18
    Checked during configuring settings
  6. 6.0 6.1 Verified by User:Marioysikax on 2019-10-26
  7. Xbox Cloud Gaming: Play with touch - last accessed on 2022-07-20
  8. MAJOR Bug During Dream Sequences... :: AI: The Somnium Files Technical Support - last accessed on 2019-09-18
  9. AI: The Somnium Files - Over 100 FPS bug - YouTube - last accessed on 2019-10-26
  10. Game Crashes During Somniums? :: AI: The Somnium Files Technical Support - last accessed on 2019-09-20
  11. 【FAQ/WORKAROUNDS】 :: AI: The Somnium Files Technical Support - last accessed on 2019-10-26
  12. Potential fix for no intro video (Windows 10) :: AI: The Somnium Files Technical Support - last accessed on 2019-10-26
  13. AI Patch - last accessed on 2021-07-19