Sonic Adventure DX (2011)

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This page is for 2011 version. For the current Steam version, see Sonic Adventure DX (Steam). For the original port, see Sonic Adventure DX.

Sonic Adventure DX (2011)
Sonic Adventure DX (2011) cover
Sonic Team
Release dates
Windows March 4, 2011
Monetization One-time game purchase
Modes Singleplayer, Multiplayer
Pacing Real-time
Perspectives Third-person
Controls Direct control
Genres Action, Adventure, Platform
Sports Fishing
Vehicles Flight
Art styles Cartoon
Themes Contemporary
Series Sonic Adventure, Dreamcast Collection
Sonic Adventure DX (2011) on IGDB
Sonic Adventure DX (2011) guide on StrategyWiki
Sonic Adventure DX (2011) on MobyGames
Sonic Adventure DX (2011) on Wikipedia
Sonic Adventure
Subseries of Sonic the Hedgehog
Sonic Adventure DX 2004
Sonic Adventure DX (2011) 2011
Sonic Adventure 2 2012
Sonic Adventure DX (Steam) 2014

Sonic Adventure DX (2011) is a cartoon third-person platforming game developed by Sonic Team and published by Sega, and was released for PC on March 4, 2011. It is the updated version of the original Sonic Adventure DX from 2004.

This re-release of Sonic Adventure DX originally served to address some of the issues of the previous 2004 PC port, however, it also introduced new problems of its own, such as limited screen resolutions options, the game screen is pillarboxed to a 4:3 aspect-ratio, poor frame-skipping, and re-uses the poorly converted WMA audio files from the 2004 port. Its configuration launcher also has issues of not saving the game's settings, and it is missing some of the unlockable Game Gear games from the previous PC port and GameCube version.

This version of the game was later replaced with another version in 2014 to address the issues with this re-release.

General information

Sonic Retro - A huge fan site for everything Sonic the Hedgehog. Mods for all the games can be found here.


Source DRM Notes Keys OS
Disc check (requires the CD/DVD in the drive to play)
Part of Dreamcast Collection. StarForce DRM.[1]
GamersGate (unavailable)
DRM-free after installation (requires an internet connection during installation)
Steam (unavailable)
DRM-free after installation through Steam client (notes may include more details)
Can be played without Steam.[2]
This re-release was replaced by the 2014 version.
This version of the game is no longer available digitally due to having been replaced with the current Steam version.
A faithful higher resolution desktop icon can be downloaded from the Files section; it can also be applied to the game's executable with SADX Mod Installer.

Essential improvements[edit]

SADX Mod Installer[edit]

A mod and patching tool that offers bleeding-edge mod updates, downgrading the later PC re-releases to the 2004 port, advanced and beginner-friendly options for installing mods, multiple mod presets (Dreamcast, Enhanced SADX, Minimal), install necessary dependencies, apply compatibility fixes, and configure SADX Mod Loader's settings before installation.
Provides a custom configuration tool to customize game settings as well as keyboard and controller bindings.
After downgrading to the 2004 port with SADX Mod Installer, see here and here for recommended mods.

Game data[edit]

Configuration file(s) location[edit]

System Location
Windows %USERPROFILE%\Documents\SEGA\Sonic Adventure DX\config.ini
%USERPROFILE%\Documents\SEGA\Dreamcast Collection\Sonic Adventure DX\config.ini
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/71250/pfx/[Note 1]
SADX Mod Installer moves the game and SADX Mod Loader settings to <path-to-game> and <path-to-game>\mods, respectively.
The 2011 version's configuration tool has problems with saving settings. See here for details.

Save game data location[edit]

System Location
Windows %USERPROFILE%\Documents\SEGA\Sonic Adventure DX\SAVEDATA
%USERPROFILE%\Documents\SEGA\Dreamcast Collection\Sonic Adventure DX\SAVEDATA
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/71250/pfx/[Note 1]
SonicAdventure##.snc is the game's save data for each save slot. Up to 10 save slots are available.
SonicAdventureChaoGarden.snc is the game's Chao Garden save data.
Save files from the 2011 version can be converted to be compatible with the 2004 port with SADX Mod Installer.

Save game cloud syncing[edit]

System Native Notes
Requires enabling backup of the Documents folder in OneDrive on all computers.
Steam Cloud


External configuration launcher settings.
External configuration launcher settings.

Graphics feature State Notes
Widescreen resolution
The 2011 version is pillarboxed to 4:3 in widescreen resolutions. Use SADX Mod Loader included with SADX Mod Installer and disable Force 4:3 Aspect Ratio under its graphics settings for widescreen support.[3]
Use SADX Mod Loader included with SADX Mod Installer for 21:9 widescreen.
4K Ultra HD
The 2011 version is limited up to 1280x720 only. Use SADX Mod Loader included with SADX Mod Installer for 4K resolution.
Field of view (FOV)
Borderless fullscreen windowed
Not available in the 2011 version. Use SADX Mod Installer, then enable Borderless and Fullscreen under SADX Mod Loader's graphics settings.[3]
Anisotropic filtering (AF)
Not available in the 2011 version. Use SADX Mod Installer, then enable Force Mipmapping in SADX Mod Loader's graphics settings and force anisotropic filtering via GPU control panel.[3]
Anti-aliasing (AA)
See Anti-aliasing (AA).
Vertical sync (Vsync)
No option in the 2011 version, but is always on by default. If using SADX Mod Installer, check Enable V-sync in SADX Mod Loader's graphics settings or force it via GPU control panel.[3]
60 FPS
In-engine cutscenes are capped at 30 FPS. While they can be switched to 60 FPS via a cheat in the SADX Mod Loader after downgrading to the 2004 port, they will play at double the speed.
120+ FPS
Gameplay is capped to 60 FPS.
High dynamic range display (HDR)
See the glossary page for potential alternatives.

Anti-aliasing (AA)[edit]

Use Nvidia Profile Inspector (Nvidia only)[4]
  1. Create an application profile.
  2. Add Sonic Adventure DX.exe to the profile you just created; for the Dreamcast Collection version, also add Sonic.exe.
  3. Change the value of Antialiasing compatibility to 0x000000C1.


This fix allows MSAA, SGSSAA, OGSSAA, or OGSSAA-based HSAA (with or without SGSSAA) to be forced through Nvidia Profile Inspector.
If using the Dreamcast Collection version for this fix, forced anti-aliasing will only work when your display resolution for the game is set to 640x480.
Use SADX Mod Installer and force anti-aliasing through GPU control panel[5]


Keyboard and mouse State Notes
Mouse acceleration
Mouse is not used at all in-game.
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller support
Full controller support
Controller remapping
The Start button in is hardcoded to Button 8 and the Right Stick camera axes cannot be remapped in this version.[6]
Controller sensitivity
Controller Y-axis inversion
Controller types
XInput-compatible controllers
Xbox button prompts
The 2011 re-release only uses keyboard prompts. Use SADX Mod Installer then install either the Xbox 360 Prompts or Xbox One Prompts mods.
Impulse Trigger vibration
DualShock 4 controllers
Although the game recognizes DualShock 4 controllers as a generic DirectInput controller, the extra trigger axes causes uncontrollable camera spinning similarly to the 2004 port, which cannot be remapped in this version.[7] Use the Input Mod included with SADX Mod Installer for improved DualShock 4 support, however, its configuration tool does have an issue with remapping controls (see here).
DualShock button prompts
Use SADX Mod Installer, then install the DualShock 3 Prompts or PlayStation 4 Prompts mod.
Light bar support
Connection modes Wired, Bluetooth
V2 tested.[7]
Generic/other controllers
Some DirectInput controllers may not work properly with this game.
Button prompts
No controller prompts whatsoever.
Additional information
Controller hotplugging
Haptic feedback
Simultaneous controller+KB/M


In-game settings.
In-game settings.

Audio feature State Notes
Separate volume controls
SE, BGM, Voice
Surround sound
On by default.
Closed captions
Mute on focus lost


Language UI Audio Sub Notes
Dubtitles only. Use SADX Mod Installer, then install Sonic Adventure Retranslated if playing the game with Japanese voice-overs and English subtitles.
Fan translation, download.
Fan translation, download.
Fan translation, download.
Brazilian Portuguese
Fan translation, download.
Fan translation, download.
Latin American Spanish
Fan translation, download.


Multiplayer types

Type Native Players Notes
Local play
4 Co-op
LAN play
Online play

Issues fixed[edit]

Configuration tool does not save settings[edit]

The Steam version's configuration tool does not save settings properly, and the Dreamcast Collection version's configuration tool does not write a new configuration file if one is missing without re-installing the game.
Steam version: Add key through Registry Editor[9]
  1. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall
  2. Check if you have a folder named SEGA on it. If you don't, right click on Uninstall, click New, then Key and name it SEGA.
  3. Right-click SEGA, click New, then Key and name it Sonic Adventure DX.
  4. Right-click the newly created Sonic Adventure DX and click New, then String Value, and name it Sonic Adventure DX.
  5. Double-click the Sonic Adventure DX string and change the value to 1.
Dreamcast Collection version: create the configuration file manually[9]
  1. Check if you have a series of folders from %USERPROFILE%\Documents that goes up to SEGA\Dreamcast Collection\Sonic Adventure DX. If not, create a new folder in %USERPROFILE%\Documents and name it SEGA.
  2. Go into the SEGA, right-click and select New → Folder, and name it Dreamcast Collection.
  3. Go into the Dreamcast Collection folder, right-click and select New → Folder, and name it Sonic Adventure DX.
  4. Go into the Sonic Adventure DX folder, create a new text file and name it config.ini.
  5. Open the config.ini file you created with a text editor, and then paste the following into this file:
    [Sonic Adventure DX]
  6. Save the file (File → Save or Ctrl+S) in this location. The Dreamcast Collection version's configuration tool should be able to read and write the configuration files again.

Other information[edit]


Technical specs Supported Notes
Direct3D 9.0c
Shader Model support 3.0
Executable 32-bit 64-bit Notes


Middleware Notes
Audio Criware The 2011 re-release uses the poor-quality WMA audio files from the 2004 port.[10] The original Dreamcast audio files can be restored with the Sound Overhaul mod included with SADX Mod Installer.[Note 2]
Input SDL2 Use the Input Mod bundled with SADX Mod Installer for SDL2 support.
Cutscenes Criware Sofdec format FMV files.

System requirements[edit]

Minimum Recommended
Operating system (OS) XP
Processor (CPU) Intel Pentium 4 3.0 GHz
System memory (RAM) 2 GB
Hard disk drive (HDD) 1.8 GB
Video card (GPU) Nvidia GeForce 7300 series
ATI Radeon X1600
256 MB of VRAM
DirectX 9.0c compatible


  1. 1.0 1.1 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>/71250/ in addition to or instead of this directory. The app ID (71250) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.
  2. More Information about CRI Middleware (in Japanese).


  1. Dreamcast Collection PC...? - SEGA Forums, page 2, post 18 (Archived) - last accessed on 2021-02-03
    "All games use Starforce protection (at least on my UK DVD copy). There are hacks out there that get round that though, if it puts you off. At least the newest Starforce you don't have to reboot to install the protection driver..."
  2. Verified by User:AmethystViper on 2021-01-28
    Accessed the older 2011 version via Steam Depot Downloader. This version was able to launch in a different folder and without Steam installed.
  3. 3.0 3.1 3.2 3.3 Verified by User:AmethystViper on 2021-01-29
  4. NVidia Anti-Aliasing Guide (updated)
  5. Verified by User:AmethystViper on 2021-01-29
  6. Verified by User:AmethystViper on 2021-01-27
    Tested on the Dreamcast Collection release of the game.
  7. 7.0 7.1 Verified by User:AmethystViper on 2021-01-27
  8. Character Select Mod - last accessed on 1 July 2022
  9. 9.0 9.1 Verified by User:AmethystViper on 2021-01-28
  10. Sound and Music Quality Downgrades - Dreamcastify - last accessed on 2021-01-24