Sonic the Hedgehog 4: Episode I

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Sonic the Hedgehog 4: Episode I
Sonic the Hedgehog 4: Episode I cover
Developers
Dimps
Sonic Team
Publishers
Sega
Release dates
Windows January 19, 2012
Sonic the Hedgehog 4: Episode I on Wikipedia
Sonic the Hedgehog
Sonic CD (1996) 1996
Sonic's Schoolhouse 1996
Sonic 3D Blast 1997
Sonic & Knuckles Collection 1997
Sonic R (1998) 1998
Sonic R (2004) 2004
Sonic Adventure (series)
Sonic Heroes 2004
Sonic Mega Collection Plus 2006
Sonic Riders 2006
Sonic Racing (series)
Sonic 3D Blast (2010) 2010
Sonic the Hedgehog 2010
Dr. Robotnik's Mean Bean Machine 2010
Sonic Spinball 2010
Sonic the Hedgehog 2 2011
Sonic 3 & Knuckles 2011
Sonic Generations 2011
Sonic CD (2012) 2012
Sonic the Hedgehog 4: Episode I 2012
Sonic the Hedgehog 4: Episode II 2012
Sonic Dash 2014
Sonic Lost World 2015
Sonic Mania 2017
Sonic Forces 2017

General information

Official site
Steam Community Discussions

Availability[edit]

Source DRM Notes Keys OS
Gamesplanet
Icon overlay.png
Windows
Humble Store
Icon overlay.png
Windows
Steam
Icon overlay.png
Windows
All versions require Steam DRM.

Game data[edit]

Configuration file(s) location[edit]

System Location
Windows <path-to-game>\main.conf[Note 1]
Linux (Proton) <Steam-folder>/steamapps/compatdata/202530/pfx/[Note 2]

Save game data location[edit]

System Location
Windows <path-to-game>\Sonic_vis_save.dat[Note 1]
<path-to-game>\data.txt
Linux (Proton) <Steam-folder>/steamapps/compatdata/202530/pfx/[Note 2]

Save game cloud syncing[edit]

System Native Notes
Steam Cloud

Video settings[edit]

Configuration utility general settings.
Configuration utility general settings.
Graphics feature State WSGF Notes
Widescreen resolution
Game renders at 1280x720. See Widescreen resolution.
Multi-monitor
Ultra-widescreen
See the WSGF entry.
4K Ultra HD
See 4K Ultra HD Launcher Fix.
Field of view (FOV)
Windowed
Borderless fullscreen windowed
See the glossary page for potential workarounds.
Anisotropic filtering (AF)
See the glossary page for potential workarounds.
Anti-aliasing (AA)
Use 0x000012C1 compatibility flag with Nvidia Profile Inspector.[1]
Vertical sync (Vsync)
Always enabled.
60 FPS
120+ FPS
Uncapped frame rate, gameplay is capped at ~60 FPS.[2]
Manually cap the frame rate at 60 FPS if the game appears to stutter.
High dynamic range display (HDR)

Widescreen resolution[edit]

By default, game renders at 1280x720 and then upscales the content to match selected resolution. It's possible to raise the internal resolution to 1920x1080, however most 2D assets are done for 1280x720 and thus are upscaled regardless.
Replace files[4]
  1. Download this patched executable.
  2. Extract to <path-to-game>.
Leaderboard can't be accessed and achievements can't be unlocked.[3]

Input settings[edit]

Configuration utility keyboard remapping.
Configuration utility keyboard remapping.
Configuration utility controller settings.
Configuration utility controller settings.
Keyboard and mouse State Notes
Remapping
Mouse acceleration
Mouse not used outside the launcher.
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller
Controller support
XInput only.
Full controller support
Controller has to be selected from the launcher.
Controller remapping
See the glossary page for potential workarounds.
Controller sensitivity
Digital movement.
Controller Y-axis inversion
Controller types
XInput-compatible controllers
Xbox button prompts
Impulse Trigger vibration
DualShock 4 controllers
See the glossary page for potential workarounds.
Tracked motion controllers
Generic/other controllers
See the glossary page for potential workarounds.
Additional information
Button prompts
Controller hotplugging
Haptic feedback
Simultaneous controller+KB/M

Audio settings[edit]

In-game audio settings.
In-game audio settings.
Audio feature State Notes
Separate volume controls
Music, SFX
Surround sound
Subtitles
No speech.
Closed captions
Mute on focus lost
See Mute on focus lost.

Localizations

Language UI Audio Sub Notes
English
Spanish
French
German
Italian
Japanese

Mute on focus lost[edit]

Set mute in background[5]
  1. Install Special K by following the Special K Unofficial Guide. Manual local installation may work better.
  2. Start the game and press Ctrl+ Shift+← Backspace to toggle Special K's Control Panel.
  3. Expand Window Management and Input/Output Behavior.
  4. Enable Mute Game under Background Behavior.

Issues fixed[edit]

Run the game at screen refresh rate[edit]

Fullscreen mode defaults to 60 Hz, even if the screen refresh rate is set higher than that.
Set screen refresh rate[5]
  1. Install Special K by following the Special K Unofficial Guide. Manual local installation may work better.
  2. Start the game once and close it to allow the configuration file of Special K to be created.
  3. Open <path-to-game>\d3d9.ini or %USERPROFILE%\Documents\My Mods\SpecialK\Profiles\Sonic_vis.exe\SpecialK.ini depending on the installation method you used.
  4. Change TargetFPS=0.0 to TargetFPS=60.0.
  5. Change RefreshRate=-1 to RefreshRate=0.

Mouse cursor visible during gameplay[edit]

Auto-hide mouse cursor[5]
  1. Install Special K by following the Special K Unofficial Guide. Manual local installation may work better.
  2. Start the game and press Ctrl+ Shift+← Backspace to toggle Special K's Control Panel.
  3. Expand Input Management and Mouse Cursor.
  4. Enable Hide When Not Moved and adjust Seconds Before Hiding to your liking.

4K Ultra HD Launcher Fix[edit]

If the launcher doesn't open properly on a 4K display, you will need to do some steps to fix this:
Change "SonicLaucher" Properties
  1. Right click on "SonicLaucher" and go to properties
  2. Go to compatibility and click on "Change High DPI Settings"
  3. Check "Program DPI" box
  4. Check "High DPI Scaling Override" box
  5. Choose "Scaling Performed by: Application"
  6. Apply and its done.

Now the launcher should open normally and you will be able to change the resolution (up to 3840x2160 confirmed).

Other information[edit]

API[edit]

Technical specs Supported Notes
Direct3D 9
Executable 32-bit 64-bit Notes
Windows

System requirements[edit]

Windows
Minimum Recommended
Operating system (OS) XP, Vista, 7
Processor (CPU) Intel Pentium 4 @ 3.2 GHz/AMD Athlon 64 3000+ or Equivalent & above
System memory (RAM) 1 GB (2 GB on Vista)
Hard disk drive (HDD) 6 GB
Video card (GPU) Nvidia GeForce 8600
ATI Radeon HD3650
256 MB of VRAM

Notes

  1. 1.0 1.1 When running this game without Administrator elevation, activity in %PROGRAMFILES%, %PROGRAMFILES(X86)%, and %WINDIR% might be redirected to %LOCALAPPDATA%\VirtualStore\ (more details).
  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>/202530/ in addition to or instead of this directory. The app ID (202530) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.

References