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

Physics Bugs & Issues

Discussions related to physics issues and feedback

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  1. pankykapus
    Locked Sticky

    READ HERE How to Use the Support Forums and Report Issues

    pankykapus, Sep 12, 2018
    Replies:
    1
    Views:
    31,428
    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:
    84,359
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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WORKAROUND CRITICAL BUG ISSUE
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  1. Rex

    WORKING ON IT List of broken special events

    Rex, Dec 29, 2015 ... 14 15 16
    Replies:
    318
    Views:
    8,927
    PhilS13
    PhilS13
    Mar 24, 2018
  2. Albert McSaltens

    WORKING ON IT GT3 cars ground collisions

    Albert McSaltens, Sep 21, 2016 ... 2
    Replies:
    32
    Views:
    1,182
    dmatzies
    dmatzies
    Mar 1, 2018
  3. Redrum

    WORKING ON IT AI revving up just before the start

    Redrum, Apr 3, 2017
    Replies:
    9
    Views:
    335
    Davemester
    Davemester
    Apr 24, 2017
  4. Lowkey

    WORKING ON IT E30 Drift front grip/feel

    Lowkey, Apr 18, 2016 ... 2 3
    Replies:
    40
    Views:
    2,326
    Kade
    Kade
    Feb 24, 2017
  5. David Dominguez

    WORKING ON IT Lotus 98T is waaay fast

    David Dominguez, Feb 15, 2017 ... 2 3 4
    Replies:
    74
    Views:
    2,158
    SimMan
    SimMan
    Feb 20, 2017
  6. TDS

    WORKING ON IT 1.12 Cars floating up and down on pits

    TDS, Feb 14, 2017
    Replies:
    19
    Views:
    535
    Stereo
    Stereo
    Feb 16, 2017
  7. Fernandito

    WORKING ON IT F40 semislicks won't warm up

    Fernandito, Dec 19, 2016
    Replies:
    3
    Views:
    179
    William Levesque
    William Levesque
    Dec 19, 2016
  8. neongio

    WORKING ON IT SF15-T ENGINE BRAKE VALUE BUG

    neongio, Nov 22, 2016
    Replies:
    1
    Views:
    66
    garyjpaterson
    garyjpaterson
    Nov 22, 2016
  9. misterbeam

    WORKING ON IT Camber effects in ac

    misterbeam, Nov 2, 2015 ... 25 26 27
    Replies:
    520
    Views:
    27,459
    David Dominguez
    David Dominguez
    Sep 11, 2016
  10. maxx2504

    WORKING ON IT Ferrari SF15-T and F138 Damper Problems

    maxx2504, Jul 15, 2016
    Replies:
    9
    Views:
    564
    $Raijin$
    $Raijin$
    Jul 21, 2016
  11. henri

    WORKING ON IT SF15T Damper settings turned world black

    henri, Jul 17, 2016
    Replies:
    0
    Views:
    83
    henri
    henri
    Jul 17, 2016
  12. kazereal

    WORKING ON IT Collision detection missing in single-player

    kazereal, May 25, 2016
    Replies:
    8
    Views:
    252
    6S.Manu
    6S.Manu
    May 26, 2016
  13. neel

    WORKING ON IT Collision reaction forces twice stronger than they should ?

    neel, Jan 6, 2015 ... 8 9 10
    Replies:
    182
    Views:
    7,460
    neel
    neel
    Apr 12, 2016
  14. burrito

    WORKING ON IT Lamborghini gallardo sl aero balance base&s3

    burrito, Dec 16, 2015 ... 2
    Replies:
    35
    Views:
    1,403
    Seria17hri11er
    Seria17hri11er
    Jan 26, 2016
  15. Christopher Low

    WORKING ON IT Bmw m235i r

    Christopher Low, Dec 22, 2015 ... 2
    Replies:
    24
    Views:
    730
    henri
    henri
    Dec 23, 2015
  16. A.r.e.s.

    WORKING ON IT Special event hack

    A.r.e.s., Dec 16, 2015
    Replies:
    0
    Views:
    104
    A.r.e.s.
    A.r.e.s.
    Dec 16, 2015
  17. Sebastian Cron

    WORKING ON IT Fuel consumption 1.2.1

    Sebastian Cron, Aug 3, 2015
    Replies:
    8
    Views:
    255
    Atle Dreier
    Atle Dreier
    Aug 3, 2015
  18. Glaurung

    WORKING ON IT Fuel consumption

    Glaurung, Feb 16, 2015
    Replies:
    10
    Views:
    402
    aphidgod
    aphidgod
    Mar 16, 2015
  19. Michiel

    WORKING ON IT Sudden change in car balance after visiting pits

    Michiel, Dec 30, 2014
    Replies:
    15
    Views:
    501
    martcerv
    martcerv
    Jan 9, 2015
  20. Shogun

    WORKING ON IT 015 Update came out and now my brakes are way too sensitive

    Shogun, Jun 6, 2014 ... 2
    Replies:
    32
    Views:
    1,355
    Racing_34
    Racing_34
    Jan 6, 2015
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