AI: The Somnium Files

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AI: The Somnium Files
AI: The Somnium Files cover
Spike Chunsoft
Unity 2017[Note 1]
Release dates
Windows September 17, 2019
OpenCritic 82
AI: The Somnium Files on HowLongToBeat
AI: The Somnium Files on IGDB
AI: The Somnium Files on MobyGames
AI: The Somnium Files on Wikipedia

General information

Steam Community Discussions


Source DRM Notes Keys OS
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Special Agent Edition. Only Steam code included.[2]
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All versions require Steam DRM.

Version differences[edit]

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

Game data[edit]

Configuration file(s) location[edit]

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

Save game data location[edit]

System Location
Windows %LOCALAPPDATA%\SpikeChunsoft\AI The Somnium Files\PSYNCAUTOSAVE
%LOCALAPPDATA%\SpikeChunsoft\AI The Somnium Files\PSYNCDEFXX
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/948740/pfx/[Note 2]
XX is the number of the save file slot in game.

Save game cloud syncing[edit]

System Native Notes
Steam 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
4K Ultra HD
Field of view (FOV)
Resolutions under monitor's native resolution available.
Borderless fullscreen windowed
Anisotropic filtering (AF)
Dysfunctional setting. See Anisotropic filtering (AF).
Anti-aliasing (AA)
MSAA 2-16x[7]
Vertical sync (Vsync)
60 FPS
120+ FPS
Disabling vsync enables 60 FPS framerate cap.[8]
Over 100 FPS causes graphical glitch in somnium scenes, see issues unresolved.
High dynamic range display (HDR)

Anisotropic filtering (AF)[edit]

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.[8] See sample image.
It is possible to force up to 16x anisotropic filtering trough the GPU control panel. Turn anisotropic filtering off from the launcher and see the glossary page.


Keyboard and mouse 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
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
DualShock 4 controllers
DualShock button prompts
Select DUALSHOCK®4 from launcher.
Light bar support
Connection modes V1, V2, Wireless adapter.
Bluetooth untested.
Generic/other controllers
Switch Pro Controller tested working.
Button prompts
Additional information
Controller hotplugging
Haptic feedback
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


Language UI Audio Sub Notes
Traditional Chinese

Issues unresolved[edit]

Visual artifacts in somnium scenes[edit]

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 enviroment freezing, everything speeds up and in short moment majority of game window turns artifacted white.[9]
Bug happens when framerate exceeds 100 FPS, even momentarily.
Cap the frame rate below 100 FPS.[10]
  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[edit]

Multiple players have reported experiencing either freezes or crashes during specific somnium scenes.[11]
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[edit]

Game freezes during movie scenes[edit]

The bug seems to be affecting Windows 7 users specifically.
There is a beta available which should fix the issue.
Join beta branch[12]
  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.[13] Download for Windows 7 or Windows 10.

Other information[edit]


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


No middleware information; you can edit this page to add it.

System requirements[edit]

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 system is required.


  1. Unity engine build: 2017.4.17f1[1]
  2. 2.0 2.1 File/folder structure within this directory reflects the path(s) listed for Windows and/or Steam game data (use Wine regedit to access Windows registry paths). Games with Steam Cloud support may store data in ~/.steam/steam/userdata/<user-id>/948740/ in addition to or instead of this directory. The app ID (948740) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.


  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. AI: The Somnium Files 21:9 Support Request : /r/widescreengamingforum - last accessed on 2019-09-26
  6. Ultrawide support? :: AI: The Somnium Files Technical Support - last accessed on 2019-09-17
  7. 7.0 7.1 7.2 Verified by User:KingKrouch on 2019-09-18
    Checked during configuring settings
  8. 8.0 8.1 Verified by User:Marioysikax on 2019-10-26
  9. MAJOR Bug During Dream Sequences... :: AI: The Somnium Files Technical Support - last accessed on 2019-09-18
  10. AI: The Somnium Files - Over 100 FPS bug - YouTube - last accessed on 2019-10-26
  11. Game Crashes During Somniums? :: AI: The Somnium Files Technical Support - last accessed on 2019-09-20
  12. 【FAQ/WORKAROUNDS】 :: AI: The Somnium Files Technical Support - last accessed on 2019-10-26
  13. Potential fix for no intro video (Windows 10) :: AI: The Somnium Files Technical Support - last accessed on 2019-10-26