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(Linux) Forza Horizon: troubleshooting

tips for how the game Forza Horizon works (5) on Linux

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Uniq IDentifiant: tag:doc.huc.fr.eu.org,2026-06-22:/en/post/linux-forza-horizon/#816b6fcc62fd175fe64083e81757575fb952b696b37c93a8e7310cda46392ba8

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Description

  • Environment : Steam Linux / Debian Sid
  • Game : Forza Horizon 5

NO! this little article is not to promote or learn to play any of the Forza Horizon.

Troubleshooting

Connection

When opening the game, a window prevents you from playing by stating that a mandatory connection is required.

Mandatory Connexion

You cannot continue without being logged in to a profile.

[ OK ]

  • Stop the game

  • Go to the game installation folder, accessible from the ‘Properties…’ menu, then go to the ‘Installed Files’ menu and click the [ Browse… ] button to open the file browser to the game installation folder.

    • Head to SteamLibrary/steamapps/compatdata/1551360/pfx/. You have to go back two files to get to the file steamapps from the installation directory of the game.

  • Open the file user.reg.

  • Search the key Xbl|DeviceKey; which should be around line 2040.

  • Delete the entire block corresponding to the equivalent of the following:

[Software\\Wine\\Credential Manager\\Generic: Xbl|DeviceKey] 1781126654
#time=1dcf91f7c643250
@="Xbl|DeviceKey"
"Comment"="{3F754FAD-C788-48B1-A0F4-0F6279924F2A}|00000000|1"
"Flags"=dword:00000000
"LastWritten"=hex:eb,2e,64,7c,1f,f9,dc,01
"Password"=hex:(…)
"Persist"=dword:00000002
"Type"=dword:00000001

  • Save

  • Relaunching the game; normally the Microsoft login window must open and allow the connection (often by already having the user name filled).
    Once validated, the game will open.

Enjoy-ID!
Enjoy-IT!