1. Do you need support for Assetto Corsa Competizione? Please use the proper forum below and ALWAYS zip and attach the WHOLE "Logs" folder in your c:\users\*youruser*\AppData\Local\AC2\Saved. The "AppData" folder is hidden by default, check "Hidden items" in your Windows view properties. If you report a crash, ALWAYS zip and attach the WHOLE "Crashes" folder in the same directory. Do not post "I have the same issue" in an existing thread with a game crash, always open your own thread. Do not PM developers and staff members for personal troubleshooting and support.
  2. As part of our continuous maintenance and improvements to Assetto Corsa Competizione we will be releasing small updates on a regular basis during the esports season which might not go through the usual announcement process detailing the changes until a later version update where these changes will be listed retrospectively.
  3. If ACC doesn't start with an error or the executable is missing, please add your entire Steam directory to the exceptions in your antivirus software, run a Steam integrity check or reinstall the game altogether. Make sure you add the User/Documents/Assetto Corsa Competizione folder to your antivirus/Defender exceptions and exclude it from any file sharing app (GDrive, OneDrive or Dropbox)! The Corsair iCue software is also known to conflict with Input Device initialization, if the game does not start up and you have such devices, please try disabling the iCue software and try again. [file:unknown] [line: 95] secure crt: invalid error is a sign of antivirus interference, while [Pak chunk signing mismatch on chunk] indicates a corrupted installation that requires game file verification.
  4. When reporting an issue with saved games, please always zip and attach your entire User/Documents/Assetto Corsa Competizione/Savegame folder, along with the logs and the crash folder (when reporting related to a crash).
ACC general support Note about silent updates Startup troubleshooting ACC savegame reports

ACC Blog

Interesting discussions and guidelines about Assetto Corsa Competizione

Announcement Title Start Date
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Last Message
  1. pankykapus
    Locked Sticky

    READ HERE How to Use the Support Forums and Report Issues

    pankykapus, Sep 12, 2018
    Replies:
    1
    Views:
    31,515
    pankykapus
    pankykapus
    Jan 3, 2021
  2. AC Support
    Locked Sticky

    This thread, started by AC Support, has been deleted. Deleted by AC Support, Nov 28, 2021, Reason: No longer valid.
    View
  3. paulieGTR
    Locked Sticky

    Before Posting - Read the FAQs and Use Search Function

    paulieGTR, Nov 10, 2013
    Replies:
    1
    Views:
    84,405
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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  1.   » Sticky Threads
  2. Fernando Barbarossa
    Sticky

    DOCS ACC Shared Memory Documentation

    Fernando Barbarossa, Aug 28, 2019 ... 22 23 24
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    Iko Rein
    Apr 4, 2024
  3. Minolin
    Locked Sticky

    MULTIPLAYER ACC Server binaries [1.10]

    Minolin, Dec 21, 2019 ... 2
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    Views:
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    pankykapus
    pankykapus
    Apr 4, 2024
  4. Aristotelis
    Sticky

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    Views:
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    Doug Duthie
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    Mar 17, 2024
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    DOCS The Server Admin Handbook thread

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    Sticky

    ACC Blog Aris Drives

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    Views:
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    Ecnelis
    Ecnelis
    May 26, 2023
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    MULTIPLAYER Competition Server changes - 1.8.4

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    Replies:
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    Views:
    13,216
    churchx
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    Apr 30, 2023
  8. Aristotelis
    Sticky

    DOCS The ACC V1.9.0 physics notes document

    Aristotelis, Apr 19, 2023
    Replies:
    13
    Views:
    8,682
    PaoloB
    PaoloB
    Apr 21, 2023
  9. Aristotelis
    Sticky

    ACC Blog Assetto Corsa Competizione v1.8 dev blog

    Aristotelis, Nov 24, 2021 ... 2
    Replies:
    30
    Views:
    13,019
    AndyK70
    AndyK70
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  10. Aristotelis
    Sticky

    PHYSICS Brake ducts and Tyre damage

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    Replies:
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    Views:
    85,937
    AndyK70
    AndyK70
    Mar 25, 2022
  11. pankykapus
    Locked Sticky

    DOCS Guide to Team Racing and Driver Swaps in ACC

    pankykapus, Aug 10, 2020
    Replies:
    0
    Views:
    11,083
    pankykapus
    pankykapus
    Aug 10, 2020
  12. pankykapus
    Sticky

    ACC Blog An introduction to SRO's GT World Challenge Series - rules and participants

    pankykapus, Jul 9, 2019
    Replies:
    19
    Views:
    31,392
    Coanda
    Coanda
    Feb 25, 2020
  13. Aristotelis
    Locked Sticky

    ACC Blog The new ACC blog subforum and how to use it

    Aristotelis, Jul 5, 2019
    Replies:
    0
    Views:
    12,071
    Aristotelis
    Aristotelis
    Jul 5, 2019
  14.   » Normal Threads
  15. Aristotelis

    PHYSICS MoTeC telemetry and dedicated ACC workspace

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    Replies:
    774
    Views:
    256,784
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    Nov 18, 2023
  16. pankykapus

    DOCS TrackIR how-to

    pankykapus, Jul 31, 2019 ... 4 5 6
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    103
    Views:
    54,811
    bells0
    bells0
    Oct 2, 2023
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    ACC Blog Audio - Monkey hear, monkey do!

    AC Support, Sep 13, 2018 ... 6 7 8
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  19. Minolin

    MULTIPLAYER Competition Server changes 1.6.5

    Minolin, Dec 9, 2020 ... 2
    Replies:
    32
    Views:
    7,744
    maxator
    maxator
    Jan 25, 2022
  20. Aristotelis

    PHYSICS Race weekend tyre sets management, pitstop strategy and fuel load testing

    Aristotelis, Jun 3, 2019 ... 5 6 7
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  22. Minolin

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    Views:
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  23. Aristotelis

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    Aristotelis, Nov 18, 2020 ... 3 4 5
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  25. Aristotelis

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    Aristotelis, Sep 6, 2018 ... 14 15 16
    Replies:
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    Views:
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    Axel Vogelsang
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  26. Minolin
    Locked

    MULTIPLAYER 1.2 - Competition Server changes

    Minolin, Nov 4, 2019 ... 31 32 33
    Replies:
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  27. Aristotelis

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    bbman
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  28. pankykapus

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    pankykapus, Feb 9, 2021
    Replies:
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    Views:
    2,377
    pankykapus
    pankykapus
    Feb 9, 2021
  29. Aristotelis

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  30. Aristotelis

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  31. Aristotelis

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    Aristotelis, Nov 18, 2020
    Replies:
    6
    Views:
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    AndyK70
    AndyK70
    Nov 19, 2020
  32. Minolin
    Locked

    MULTIPLAYER GT4 in Multiplayer and Competition Servers - Changes in Version 1.5

    Minolin, Jul 15, 2020 ... 2
    Replies:
    24
    Views:
    8,441
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  33. Aristotelis

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    Aristotelis, Nov 16, 2018 ... 11 12 13
    Replies:
    251
    Views:
    49,933
    Salvatore Amato
    Salvatore Amato
    Aug 1, 2020
  34. Aristotelis

    PHYSICS Bumpstop telemetry in the setup screen

    Aristotelis, Oct 11, 2018 ... 2 3
    Replies:
    50
    Views:
    38,476
    SimGuy_1
    SimGuy_1
    Jul 15, 2020
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