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).

MULTIPLAYER Competition Server changes - 1.8.4

Discussion in 'ACC Blog' started by Minolin, Nov 26, 2021.

  1. Minolin

    Minolin Staff Member KS Dev Team

    The CP servers for the EU region have been quite a success so far. The CP system does require a certain number of users to work well (both for the matchmaking aspect and the Elo calculation), so the very strong EU region is working out so well that we can apply some different concepts. Before we go over the significant changes for this region, let me share some numbers for the statistics lovers.

    1) Stats

    - we have seen a total of 16.486 races with 373.718 driver entries
    - 84% of this happened in the EU region
    - in average, this is 24 races with 550 drivers per day
    - the record day was 03.05.2021; the 17:00 race had 14 splits
    - the 2 hour race on 07.06.2020 had 429 drivers (was Spa)
    - the 15/16:00 slot is the most popular by far across all regions


    but the most important aspect is how stable the CP usage is, independently of our update cycles. as you can see, there is no visible decline in the races/month between the 1.7 and 1.8 updates (November isn't complete yet).


    2) Changes to EU

    In summary, EU constantly is far above the critical thresholds of usage that we need to make the systems work. Previously we were hesitant to apply some changes we (and you) would like to see, because those may have negative effects for periods with very low user numbers. But looking at those statistics, we are very confident for now and the future:

    2.1 Hourly races

    The new (EU) cycle will simplify the daily business - every full hour there is one race, no exceptions. as before, the registration starts 5 minutes before the next full hour - for example you can start to sign up at 16:55.

    2.2 Shorter races

    All sessions are shorter now: The Free Practice session to collect drivers after the registration is down to 3 minutes; the Qualy session now is 7 minutes, followed by a 30 minute race session. Also no rules or exceptions here.
    You should be able to just fetch (or return) some water and jump into the next CP race just after you finished.


    Note: the precise timings may be finetuned during the next days; the target is to be sure to not have overlapping races (as this leaves all potential drivers from race 1 out for race 2), but also get the result in tightly so there's not much downtime between two consecutive races.

    Also the formation lap will be moved to the short one during with one of the next server updates; that means we may be able to extend the race length to 35 minutes.

    2.3 Changed pitstop rules
    Given the shorter races, new pitstop rules just make more sense. now each CP slot has a 33% chance for a mandatory pitstop with forced refueling (you can keep the tyres) in an 8 minute window.


    2.4 SA 80

    We raised the SA barrier to 80 (EU only).

    2.5 Unchanged track cycle

    At least until the end of the year, the daily track cycle will stay as-is (and then only the sequence may change, but I can't tell yet, it's a well hidden secret).

    2.6 CP server stability
    Our service provider worked on solutions to eliminate stability issues with the CP servers. We do not expect repetitions of common problems.

    Attached Files:

    Last edited: Nov 26, 2021

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  3. Minolin

    Minolin Staff Member KS Dev Team

    having solved the issues in the 1.8.4 version today, we can start the new CP cycle now. today 14:00 will be the first hourly race - let us know what you think and how it went
    Dewald Nel and Ole Pophal like this.
  4. FelixR1991

    FelixR1991 Simracer

    Interesting stuff, mainly the statistics ;)
  5. cooknn

    cooknn Alien

    Sounds exciting. Wish I lived on the other side of the pond :cool:
    Nox likes this.
  6. dbr93

    dbr93 Gamer

    I try 16.00h CP and all drivers lost connection when go out of pit (or something like that)
    And also cars missed tires :)
    18.00 was fine
  7. I did the 15:00UTC/16:00CET slot today, I was in server 2/10

    Practice, Quali and Race all went without a problem (although we did have a full formation lap, I thought the shorter format would have the short formation lap).

    Personally though, I would love to have 1 or 2 of these races be longer than 30 minutes. The old format I always had more fun and enjoyment in the 1h races rather than the 45m.
    I think longer races introduce more management skills into the picture.

    TLDR: Love the new format for the bigger amount of races, but would love 1 or 2 time slots where we have a longer race (45m/60m)
  8. Any hope of these changes coming to the NA servers? Is there any way to switch to EU?
    pnewhook, Thomas61me and cooknn like this.
  9. AndyK70

    AndyK70 Alien

    Did 2 CP races back 2 back 17:00 CET CP4 and 18:00 CET CP5 and no freeze or crash.
  10. dbr93

    dbr93 Gamer

    I like also to have one race on the day 1h long.
    Is good for training
  11. churchx

    churchx Rookie

    May i suggest consider leaving CP races throughout whole day, not just in evenings (lot of people drive in EU region, sometimes from very differing timezones. Also should cover often more free time available in weekends. Very welcome part of changes), but return longer actual race times?

    This sim is about endurance racing championship. Short races leave outside picture many important tactics like saving tires, being more careful to avoid repairs in beginning of race, pitstop strategies, in longer races weather can change (sometimes even twice) adding more challenges and making races more interesting. Frequent short races also imho is minor but nevertheless factor reducing cleanliness of driving, as people have less to loose, "died this time, no probs, will retry in next session soon". Short race time also makes way less desirable finishing race in case of any substantial damage, as pit visit time for repairs is too time consuming relative to (now) short race time.

    There are many public servers around with race time of 20 or 30m already. Even of similar SA requirement. It seems waste to leave actual endurance racing only to portal events (that happen less often and have even higher chance of event time to not be acceptable for those of more distanced timezones, unlike CP, that covers broader time window). Why make CP almost same as public servers or simgrid daily races are?

    There are many places where one can shave off time to enable more frequent CP race cycles, eg. cut registering time, eliminate free practice alltogether, reduce qualy time (already done), reduce wait time between FP-Q-R switch .. but i'd love to see old race times of 45 & 60m back. If CP will take some middle ground - eg. session every 1.5 hours, but with no FP but of old race times .. it looks to me as better compromise, that will make races more frequent then 2h cycle in past, but will retain endurance element. At very least, consider making CP races 45m long per current hourly sessions. Seeing race 30m long but with mandatory pits .. just way too unrealistic.
    SpringbokGamer and FJ Astur like this.
  12. churchx

    churchx Rookie

    Unfortunately unable to edit previous post to not create another one, but also with such short races .. why still retain full formation lap? People should be able to heat up tires with brakes+accel even on partial formation, even more so that brake pad wear doesn't matter for such short races, and one can afford extra pad wear by overheating them to red for sake of tire temps. If no other suggested steps to lengthen race seem worth doing, like eliminating FP and upping race to 45m, or no FP and race 60m every 1.5h, then at least this as most minimal change. Saved time on formation lap can be added to register/qualy/session switch/setup times.
    hertdere likes this.
  13. Minolin

    Minolin Staff Member KS Dev Team

    that is a bug, the server binaries used should already automatically go to short formation for a session lenght < 40 minutes
    churchx likes this.
  14. AndyK70

    AndyK70 Alien

    @churchx the 3 to 5 min free practice is the time to join the server. When qualy starts there are no more server joins possible, to prevent join lags. Therfor it is not possible to get rid of free practice completely.
    churchx likes this.
  15. DaReaLDeviL

    DaReaLDeviL Racer

    I love the new hourly schedule. Something easy to keep in mind and shorter periods where I can race. Much more handy from time comsuming wait for register... fail... wait 2 more hours. Will test this today and report back.

    But as the other stated - I think there should also be some longer races maybe once a week or in generel on the weekends?
  16. That is the most disapointing change in ACC since early access. I am absolutely devastated that there will be no more longer races in the main slots. Since when is GT racing and ACC and CP racing about 30min sprints. What you have done there is make the CP races be open lobby full risk sprints. It will be a mess. Please, please, please give us at least the known race durations during the old timeslots. The newly added hourly sprints can be a nice addition during the rest of the day and will be regularly used.

    I cannot understand why the devs would so drastically mess with a system that they clearly state works so well. I am shocked.
    FJ Astur and GRFOCO like this.
  17. churchx

    churchx Rookie

    Another way for possibly making everybody happy might be somehow decoupling registration & full racing session times, eg. so that everybody still can register once per hour, but drive longer, even if it's past next session registration time, but i have high doubts if it can be easily implemented with how CP servers are scripted, and how registration is implemented in game client executables, as it sounds way above simple tweaks to race length on scripts handling/automating server side, also may increase hosting provider costs on server side, if it happens to double servers running count for those that just register + those that still get racing in for previous session
    Last edited: Nov 29, 2021
  18. Scotty22

    Scotty22 Rookie

    I am disapointed, too. I loved the 60 mins more. They could've changed the 45mins to 30min races and try to keep at least one 60min race each day on one slot in the evening - or something similar. But don't delete them all :(
    FJ Astur, hertdere and AndyK70 like this.

    MEEESHE4KA Rookie

    I don't really know if I want to play this game with that short races... The 60min races was the most interesting of whole game. I don't have enough time to search and prepare for external league races and the CP was an alternative for that, now It's just a public with graduated ranks...
    hertdere likes this.
  20. Don't get me wrong, I really like the fact that we have CP races now all day long, I will participate. BUT: I absolutely cannot understand why these 30min sprints are now the ONLY option of "high level multiplayer racing" in ACC. Kunos develops a high end simulation with a sophistocated tire model with tire wear and brake wear and refueling and tire changes and gradually changing weather and NONE of that is available to actually use on a simulation level in multiplayer without using a third party provider. We are all proud of calling ACC a simulation but now the "in game multiplayer content" is down to "game level". Which professional racing series in the world uses 30min races WITH a forced pitstop? The new 1.8 update is absolutely brilliant in terms of physics and performance improvements but at the same time the CP races go towards arcade racing. The difference to open lobby is just so small.
    Compared to iRacing the new CP format resambles the very entry level series for the first steps in the licence process of iRacing. There are also hourly races. Come on, Kunos, most of your users are much better than that, give them some endgame content to challange us!
    I know, one of the answers will be: join a league. I think I am not alone in the ACC fanbase who is not a teenager with a free schedule. I have a family, kids, a job etc. Simracing is not my first priority but I still love it very much. I cannot commit to a fixed schedule. That's what I loved about ACC that on a free evening I could join a "league level" race with all the things that this awesome Sim has to offer. I am still in server 1 every time, I am not slow.

    I also do not understand what the logic of Kunos behind this decision is. They outline in detail how successful the old CP format was and then they change it completely. Why not add the hourly sprints during the times where there were no races so far and keep the well established and beloved format during the old hours?
  21. GRFOCO

    GRFOCO Alien

    I don't want be a negative guy here, but this imho is one of the worst decision ever about AC(C).
    There was 2 formats which was a little strange (1 hour and 45mis... Was they so different?).
    Now they are replaced by 30mins format.

    Only 30mins race (correct me if i'm wrong).

    Oh dear, to me the way to improove multy side was sooo easy just cutting off the 45mins format and replace it with the new 30mins. So we can have 1hour races (which are the standard format of real GTWC) and 30mins race. I really don't see a better and easiest solution to this.

    Buh, sometimes things are so hard to understand (i'm talking about me, abviously), but ok, that's it.
    SpringbokGamer, Scotty22 and FJ Astur like this.

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