Sonic Adventure DX (Steam)

From PCGamingWiki, the wiki about fixing PC games

This page is for the Steam version. For the original 2004 port, see Sonic Adventure DX. For the 2011 version, see Sonic Adventure DX (2011).

Sonic Adventure DX (Steam)
Sonic Adventure DX (Steam) cover
Sonic Team
Release dates
Windows September 16, 2014
Modes Singleplayer, Multiplayer
Pacing Real-time
Perspectives Third-person
Controls Direct control
Genres Action, Adventure, Platform
Vehicles Flight
Art styles Cartoon
Themes Contemporary
Series Sonic Adventure, Dreamcast Collection
Sonic Adventure DX (Steam) on IGDB
Sonic Adventure DX (Steam) guide on StrategyWiki
Sonic Adventure DX (Steam) on MobyGames
Sonic Adventure DX (Steam) 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

Key points

Updated version of Sonic Adventure DX (2011) with more graphical options and fixes.
Missing all unlockable Game Gear games from the GameCube and 2004 PC versions; use SADX Mod Installer to restore them.
Aspect-ratio is pillarboxed to 4:3; use SADX Mod Installer for proper widescreen support.
This version may occasionally cap the frame rate at about —40 FPS instead of 60 FPS; SADX Mod Installer may help.

General information

Sonic News Network - A massive wiki for the Sonic the Hedgehog universe.
Sonic Retro - A huge fan site for everything Sonic the Hedgehog. Mods for all the series can also be found here.
Steam Community Discussions


Source DRM Notes Keys OS
Humble Store
Icon overlay.png
DRM-free after installation through Steam client (see notes)
DRM-free if Steam is not installed or by creating a steam_appid.txt file containing its Steam ID number 71250 in <path-to-game>.[1]
All versions require Steam DRM.
A faithful higher resolution desktop icon can be downloaded from the Files section.

Essential improvements[edit]

SADX Mod Installer[edit]

A mod/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), downloads and install necessary dependencies, apply compatibility fixes, and configure SADX Mod Loader's settings before installation.
Includes a custom configuration GUI tool to tweak various game settings and remap controller and keyboard bindings for the Input Mod. It is also compatible with BetterSADX and can be downloaded here.
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 <path-to-game>\input_config.xml[Note 1]
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/71250/pfx/[Note 2]
SADX Mod Installer moves game and SADX Mod Loader settings to <path-to-game> and <path-to-game>\mods, respectively.

Save game data location[edit]

System Location
Windows %USERPROFILE%\Documents\SEGA\Sonic Adventure DX\[Note 1]
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/71250/pfx/[Note 2]
SADX Mod Installer moves the save files to <path-to-game>\SAVEDATA.

Save game cloud syncing[edit]

System Native Notes
Steam Cloud


Graphics tab from external configuration tool.
Graphics tab from external configuration tool.

Graphics feature State WSGF Notes
Widescreen resolution
Pillarboxed 4:3. Use SADX Mod Loader included with SADX Mod Installer for proper widescreen support.
4K Ultra HD
Use SADX Mod Loader included with SADX Mod Installer for 4K resolution.
Field of view (FOV)
Borderless fullscreen windowed
Use Borderless Gaming for the Steam version. Alternatively, use SADX Mod Installer and enable Borderless and Fullscreen in SADX Mod Loader.[2]
Anisotropic filtering (AF)
Not available in the Steam version. Use SADX Mod Installer, then enable Force Mipmapping in SADX Mod Loader and force anisotropic filtering via GPU control panel.
Anti-aliasing (AA)
FXAA on/off for the Steam version. Nvidia card owners can force any kind of anti-aliasing with Nvidia Inspector with compatibility flag 0x080000C1 as long as they are using a 4:3 resolution (e.g. 1200x900 on a 1600x900 monitor). If using SADX Mod Installer, anti-aliasing can be forced by your GPU's control panel.[3]
Vertical sync (Vsync)
If using SADX Mod Installer, you may need to enable it via the SADX Mod Loader or your GPU's control panel.
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, they will play at double the speed.
120+ FPS
Gameplay is capped at 60 FPS.
High dynamic range display (HDR)


Keyboard remapping from external configuration tool.
Keyboard remapping from external configuration tool.
Controller remapping from external configuration tool.
Controller remapping from external configuration tool.

Keyboard and mouse State Notes
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse is not outside of external configuration tool.
Mouse Y-axis inversion
Controller support
Full controller support
Controller remapping
Controller sensitivity
Controller Y-axis inversion
Controller types
XInput-compatible controllers
Analog triggers and D-pad are not supported in the Steam version.[4] Use the Input Mod included with SADX Mod Installer for improved XInput support.
Xbox button prompts
Steam version uses Xbox 360 prompts. Use SADX Mod Installer, install either the Xbox 360 Prompts or Xbox One Prompts mods.
Impulse Trigger vibration
DualShock 4 controllers
Use Input Mod included with SADX Mod Installer for DualShock 4 support.[5]
DualShock button prompts
Use SADX Mod Installer, then install the PlayStation 3 Prompts or PlayStation 4 Prompts mods.
Light bar support
Connection modes Bluetooth, wired.
V2 controller tested.[5]
Generic/other controllers
Certain controllers may require the Input Mod bundled with SADX Mod Installer.
Button prompts
HD GUI 2 mod included with SADX Mod Installer uses Dreamcast controller prompts by default. For Nintendo prompts, use either Wii U Pro Prompts or Switch Pro Prompts mods.
Additional information
Controller hotplugging
Haptic feedback
Simultaneous controller+KB/M


Audio settings tab from external configuration tool.
Audio settings tab from external configuration tool.
In-game language settings.
In-game language settings.

Audio feature State Notes
Separate volume controls
Sound, Voice and Music.
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 with Japanese voice-overs and English subtitles.
Fan translation, available here.

Issues fixed[edit]

Low frame rate[edit]

If the frame rate is stuck around —40 FPS and won't rise to 60, disable the in-game FXAA and Vsync and instead force them through the Nvidia/Radeon control panel instead.[6] Alternatively, if forcing Vsync and FXAA via video card control panel does not fix the issue, downgrade the game to the 2004 port and patch it with mods via SADX Mod Installer.

Other information[edit]


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


Middleware Notes
Audio ADX
Input SDL2 Use the Input Mod included with SADX Mod Installer for SDL2 support.[7]

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 When running this game without elevated privileges (Run as administrator option), write operations against a location below %PROGRAMFILES%, %PROGRAMDATA%, or %WINDIR% might be redirected to %LOCALAPPDATA%\VirtualStore on Windows Vista and later (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>/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.


  1. Verified by User:AmethystViper on 2019-12-11
    Creating a new steam_appid.txt file for the game with its Steam App ID number when it didn't initially had this file allowed the game to legitimately launch without Steam.
  2. Verified by User:AmethystViper on 2020-07-28
    Used Borderless Gaming on the vanilla Steam version at my display's native resolution. Borderless without Fullscreen in SADX Mod Manager only uses Windowed mode instead.
  3. Verified by User:AmethystViper on 2020-07-28
    Was able to force MSAA and SGSSAA onto Sonic Adventure DX via Nvidia Profile Inspector after using SADX Mod Installer.
  4. Verified by User:AmethystViper on 2020-07-20
  5. 5.0 5.1 Verified by User:AmethystViper on 2020-08-03
  6. Why is the frame rate stuck at 48FPS? - Steam Community Discussions - last accessed on 2020-07-19
  7. sadx-input-mod - Github - last accessed on 2020-07-19
    "sadx-input-mod is a mod for SADX PC that replaces the default DirectInput polling with SDL2 to enable more robust gamepad support. It allows the use of DirectInput and XInput controllers simultaneously."