Home Creators Posts Import Register Favorites Logout

Content

________________________________________________________

What are extensions?

Extensions are enhancements to existing track mods in Assetto Corsa. They consist of an additional 3D layer that add new models like bridges and gantries, brake markers, signs and billboards, buildings, kerbs, vehicles, marshal lights, white lines, etc...They also include set of configuration files that improve visual quality and add CSP features like grassfx or rainfx, trees, people in stands, animated billboards, environmental effects for example.

________________________________________________________

Disclaimer

This is an unofficial fan-made project created for Assetto Corsa and is not affiliated with, endorsed by, or connected to Formula 1, FIA, FOM, WEC, ACO, IMSA, ALMS, ELMS, or any related series, teams, or organizations. All trademarks and registered names remain the property of their respective owners.

________________________________________________________

Prerequisites

In order to make extensions work, first thing is to install Custom Shaders Patch (CSP) which you will find here:

https://acstuff.ru/patch/

CSP Version must be at least be 0.1.79

You can also install more recent versions (0.1.80 or 0.2.x). They have some very nice improvements but sometimes can be less stable especially the most recent ones.

________________________________________________________

How to Download Tracks

First thing to do is to download the original track.

It can be a track from the original Assetto Corsa game and in this case you can skip this step

Or it can be a third-party track mod and in this case links to these track mods are always provided in the related extension post.

You can find almost all the tracks mods provided by the great Assetto Corsa community in the Breathe listing (huge thanks to him!!!)

https://shorturl.at/fiIMR

________________________________________________________

How to Install Tracks

Once you have the track file (generally a compressed zip or rar archive )you have to install it either by drag and drop it to Content Manager or manually install it within Windows Explorer by extracting it to your assettocorsa folder.

In the end, the track folder should be located in the folder

assettocorsa\content\tracks

________________________________________________________

How to Download Extensions

Extensions link are always provided in the post as google drive links.

They are always accessible so if they don't it can be for two reasons:

the link has been updated. When it happens (probably due to browser cache), just update the page with Ctrl+F5) and you should get the new link

the link has been archived. This track extension version is obsolete and a new version is available (probably with a link provided in the post)

________________________________________________________

How to Install Extensions

If you have some old versions of the extensions, it can be sometimes useful to completely remove and reinstall track and extension folder before installing extensions to avoid conflicts

Once extension is downloaded, you have to install it. Follow one of these two methods:

• Method 1: Drag and Drop (recommended)

Open Content Manager.

Drag the downloaded .zip or .rar file directly into the Content Manager window (or use the install from a file menu).

A green notification will appear in the Content Manager menu at the top right, asking if you'd like to install the layout(s). Click Install.

Content Manager will automatically extract and place the layout/extension files in the correct directory.

Restart Content Manager to ensure it recognizes the new layout(s).

• Method 2: Manual Installation (only if drag and drop fails)

Sometimes drag-and-drop installation fails and the extensions don’t install correctly. If that happens, you’ll need to extract the extension files manually in Windows Explorer instead of using drag and drop.

All extensions archive file respect the tracks folder structure so you just have to extract the track directly to your assettocorsa folder and that's it. It should be something like this:

...\Steam\steamapps\common\assettocorsa\content\tracks

________________________________________________________

Troubleshooting

.

"Cannot have 0 cars" Error:

This error always indicates incorrect installation of the track and/or extension. Please read the installation steps again and everything should work perfectly fine 👌

To check that your install is OK, here is an example of a correct track/extension folder structure:

.

General Issues

All tracks extensions are tested (by me obviously and by all users that have already download it before you) so if issues occur they are either detected and corrected quickly or they are caused by something wrong in your CSP config or the track / extension install

In a majority of issues, if you just remove the track folder completely then reinstall it and the extensions, that should solve the issues.

.

Track / Mod is damaged

Most of the time "track is damaged" or "mod is damaged" issue or crash is related to an installation issue. Please check:

Make sure the extension is installed correctly (see "How to Install Extensions" higher)

Check that the original track works properly without the extension

Try reinstalling both the track and the extension from scratch

If the issue remains, try with a more recent CSP version

.

Incorrect CSP tracks config folder:

Some issues can also be caused by the way your CSP version loads base extensions files so there are some compatibility issues. For recent CSP versions make sure your folder [assettocorsa\extension\config\tracks] contains only subfolders and no files.

Also make sure base extension files are automatically downloaded in your CSP settings

.

AI Cars Not Starting Race Issue:

Depending on the track, issues occur with latest CSP versions (> 0.2.x) with AI cars not starting the race

All we can do about it right now is just to go back to an older CSP version and wait for a CSP fix.

Please note that if you restart the session (even immediately after entering the race), everything is OK the second time.

.

AI Spline Issue:

This issue can be caused by some AI file incompatibility with your CSP version

To solve it go to Go to [Settings / Custom Shaders Patch / New AI behavior]and uncheck the [Extra options for AI splines]

.

No Spectators:

In order to have spectators appear at your track check your config in Content Manager

Go to [Settings / Custom Shaders Patch / Track adjustments / Spectators] and uncheck the [Hide all spectators] and [Adjust amount of spectators] options

.

Lights issues:

Because everyone has different config, different PP Filter, different hardware, different settings, different taste, there is obviously no magic settings for lights.

Most of the time , I try to make lights work for everyone but if this is not the case (and if it's not some issues due to CSP - see above), the most easy way to improve lights to your taste is to adjust your Pure settings in-game, and PP filter brightness settings is always a good way to start:

.

Color issues / Seasons :

If your colors in game are completely desaturated it can be caused by seasons settings

To "solve" this, either set your race date to summer or chose another setting for the seasons in [Settings / Custom Shaders Patch / Track adjustments / Seasons ]

.

.

CMRT Broadcast app:

Some users have reported some issues with extensions and CMRT Broadcast app. If you have some issues with extensions you don't manage solve try to remove this app.

.

________________________________________________________

Refund Policy

Patreon subscriptions are recurring payments, and members are responsible for managing and cancelling their subscriptions before the next billing date.

Refunds may be considered on a case-by-case basis in exceptional circumstances, such as accidental subscriptions or genuine billing issues.

Forgetting to cancel a subscription is not, by itself, a valid reason for a refund.

Please make sure to cancel your membership in time if you no longer wish to be charged.

________________________________________________________

Comments & Messages Policy

I always appreciate your feedback, suggestions, and support! 😊

However, please keep a few things in mind:

Stay on topic: Please keep comments related to the post. Requests for other tracks, updates, or new extensions don't belong in unrelated comment sections.

Be respectful: Constructive criticism is always welcome, but rude, aggressive, or demanding comments may be ignored or removed without warning.

Be patient: I'm an independent creator with a very busy release schedule, so I can't guarantee a response to every comment or message.

For installation issues, please check the troubleshooting guide before asking for help.

Thanks for your understanding and support!

Files

Comments

Ricardo Sánchez

Oooooh excelente tutorial para la mayoría de problemas que alguien siempre ha tenido. Gracias!!!

vegas paris

Très intéressant, merci beaucoup.

xNAPx

Any clue what can cause Silverstone with track extension 2023 giving crash " failed to allocate gpu memory" with the latest csp 0.2.3p211?

Spiyder

the goat of f1 extensions. been subbed for almost 2 years now, 100% worth it

Flavio Cardoso

Getting the same error here with Silverstone 2023 extention. Maybe something with csp 211 like it´s what i have installed here too.

xNAPx

Yes only Silverstone crash after the new csp

Pyyer

Thanks for reporting 👍 I have finally found what is the issue. It seems CSP has changed its way of loading camera_facing files. I have fixed it in version 2.1.3 of Silverstone 2023, now everything loads correctly 👌

Pyyer

Thank you so much for your longtime support! 🙏 You're a big reason why I can continue to work on these extensions every week. I hope I will be able to provide you some great stuff for AC (and maybe AC EVO in the future 😉) for a very long time!

E

Hi Pyyer, This is the same message I get with the new Sepang Extension as well. .. " failed to allocate gpu memory". I'm using CSP 0.2.3-preview211

xNAPx

Thank you so much for taking care of this problem, tou are a star

Pyyer

@E You're right. This is a new issue related to CSP 0.2.3 preview 211 only and appears in the following tracks/layouts: acu_hungaroring\layout_f1_2021 acu_hungaroring\layout_f1_2022 acu_hungaroring\layout_f1_2023 acu_sepang\layout_alms_2023 acu_sepang\layout_trackday_2023 bahrain_2020\bahrain_f1_2020 bahrain_2020\sakhir_f1_2020 fuji_speedway_mts\layout_wec_2023 istanbul_park\layout_f1_2020 ks_barcelona\layout_gp_2022 ks_barcelona\layout_gp_2022_fnr ks_barcelona\layout_gp_2023 ks_barcelona\layout_gp_2023_fnr ks_silverstone\silverstone_f1_2023 mugello\layout_f1_2020 singapore_2020\layout_f1_2010 singapore_2020\layout_f1_2019 singapore_2020\layout_f1_2022 singapore_2020\layout_f1_2023 spa\layout_f1_2020 I will create the fixes as soon as possible

xNAPx

Whoa that's a very long list, hopefully won't take you too long to fix it

Spiyder

itll be 2 years the 8th of august

andre vieira

Can you help me I recently installed the game and I can't enter the maps it gives me an error oxc000007b acs.exe on content manager

TheBigRabbit

Thx so much for all your amazing worx! Legend. Just asking, being a bit nosy, but where are you from!? Thx for an answer. Keep it up! :-)

johnny CILLIERRE

Hello, I love your work, but I have a request: I have the same PP filter as you C13Aegis, but I do not get the same result, can you share your configuration CSP and your PP filter Ini C13Aegis. Many thanks in advance, you'd make me a happy man.

Dale Provance

What folder does the pure config file go into? Amazing work,by the way!

Sardokard

Excelent job ! All these improvements encrease the game feeling. But i have an issue. At each release, we have to use another layout and then, the previous best lap time are not merge. I try to put the new layout files from the folder at the root, but it doesn't work. I also try to past the best time from a layout to another but no way. If someone could help me.....

Einar Bjørnen

As far as I understand you do the visuals on the tracks, and nothing on the physicks? Now we are closing in to Zandvoort 2024 F1, I hope you can use another track, than last year, who has a fault i corner 2, The ai cars are flying everywhere. My self tried VRC Formula Alpha 2024 and I got a terrible snap oversteer if I not tiptoeing through corner 2.

Tyler

can someone please help... i have tried everything on the downloading side but no matter what i do it gives me "error track not found".. i tried manually installing the orginal track and also tried downloading it through content manager but no matter what when i press run it gives me track not found

Alessio

Hello all, hopefully I can get some help the extensions are amazing, however in some tracks me and the AI don't go over 160/170 km/h. I have tried with different vehicles and it still happening,the issue only doesn't happen on kudos original tracks,also tried to re install the tracks and extensions and still getting same issue all the time,any help please?

Alessio

Just to update,I only got round to test it on Bahrain 2024 by fenyr but it looks like the issue is the extension as on the original track by fenyr I don't have the speed bug,I'm on the latest csp v.2.5 preview 1

Alexis Desjardins

How to use your extension with 3d tree extension ?

Sébastien Deville

Hi Pyyer ! How are you ? I have a question regarding your extension. As for the F1 tracks, the limits are the whitr line, in opposit as the GT races where the limits are larger, esentially the kerb, I Wonder if you can update your extension to correct this point ? Because I use your extension for my F1 championship (FSW) and Real Penalty dont count the cut very well because of the track limits that are not everytime configured on the white lines. Thank you in advance for your answer 😉

Bongi Mabhida

Hi Pyyer. Will there be a 2024 Interlagos extention

Benjamin Mauss

First of all, thank you for all your work, it's really appreciated.I wanted to ask you, i'm playing mostly races and championships offline, and installed pretty much all your tracks, and there is no blue flags when i overlap the AI, yellow flags are also pretty random. Is this because of the track settings or there is something i forgot to tick in options ?

VisualStudios

Hi everyone. If you're having issues with some tracks and have no idea how to resolve them, and this FAQ didn't help, here are some solutions. If I encounter more issues, you can find the solutions here: --- If the AI seems subpar at times, consider downloading a free mod called “Better AI for Formula 1 Tracks” by Nuzzi on Overtake. To ensure compatibility, remove tracks you don’t use. For instance, if you don’t need 'sochi_autodrom' or 'melbourne_2019', delete those folders. Afterward, move the remaining track folders to content > tracks. --- If grass is missing on certain tracks, here's the solution: 1) Go to CSP > GrassFX > Extension. 2) Disable the “Skip loading of old grass meshes” option if it’s enabled. This should resolve the issue and ensure GrassFX remains enabled. If the issue persists, you may need to disable GrassFX entirely. --- If grandstands, roads, or other track assets are missing, here's the solution: 1) Go to CSP > General Patch Settings > CPU Optimizations. 2) Under Chunks Optimization, change the setting from “Advanced (Experimental)” to “Basic”. This should resolve the issue and prevent similar problems on other tracks. --- If grass or vegetation appears blurry while driving or standing still, here's the solution: 1) Go to CSP > GrassFX > Rendering options. 2) Disable the “ExtraFX pass” option if it’s enabled. This blur is caused by motion blur from ExtraFX. Disabling 'ExtraFX pass' feature should fix the issue. If the problem persists, consider disabling GrassFX entirely. You can keep motion blur from ExtraFX enabled.

brandon

thanks a lot !

Jacob Dunn

No matter what i do, it still gives me the 0 cars in race error. If someone would be nice enough t help that would be amazing, and yes i did follow all the correct installation steps and error fixes steps.

Rino Rossi

Hi all I have isseu with difficuly level. 80% AI is always too fast! With Kunos tracks I don't have this problem. Can you please help me? Kind regards Rino

NezukoChan29

hi, i have an issue with sponsors on sum walls, they're a bit glitched

Vergorn

really exelent job !!! do you know when Barcelona 2025 F1 track will be ready ? ) thanks

Elijah Grant

Pre realease will probably be on wednesday or thursday, and the actual release most likely saturday

Vergorn

awsome thanks sir !

Jeno Galatz

Just a dumb question , there is a more advanced surface modell of tracks , for example with Monaco i find weird bumbs where onboard RL has no any or in another place . I just examined and on monaco after the third bigger turns (Right turn) right after the turn is a huge bump where almost have to takoff from throttle , and probably is in wrong place as in RL they make an avoidance maneuver later after turn 3 like in the middle of the straight to turn 4. Nobody experienced this , and probably has other misplaced or wrong interpreted surface mesh. I dont think is Laser Scanned . Sorry for doublepost but i dont know if you read just the last posts or also track related posts too

VisualStudios

You're right, there are some unnecessary bumps and the track isn't laser scanned compared to the new techniques used to make the tracks such as Fenryr. Even so, it's quite close enough and really well done. Of course, to reduce the feel of the bumps you need to set up the cars well, so the bumps become much less, especially for AI cars. I also highly recommend using the AI lines by mk-sg findable on Overtake, which not only makes the AI faster, but tries to avoid the bumps.

VisualStudios

Did you read my take on fixing the issues, below your comment? It's a comment from 5–6 months ago. I think it should be a solution to your problem.

VisualStudios

That sounds like a skill issue… No, I'm kidding, bad joke. Kunos tracks, or to be more precise their layouts, have horrible AI lines and aren't competitive. I've noticed Pyyer including AI lines that are competitive and causes fewer crashes. So, what you're experiencing is basically an “evolution” of the AI, if you will. This is something he can't really help you with, other than saying, which I will do now, keep on practicing being better! Here's a handy tip, be in the back and follow the AI for a while and learn the track and braking points that way. Have fun! :)

VisualStudios

Did you read my take on the issues down below? Also, on what track is this happening? You need to be more specific when it comes to asking for support and troubleshooting. What are your CSP settings, etc.

Jeno Galatz

Yes . My tought it was the same that i have to adjust my car related to track bumps , otherwise its nice and well done of course. About the AI i dont use any ai races i sim solo or online.

Zom

Hi, if anyone is able to help, it would be much appreciated I downloaded quite a few tracks however only these don't seem to work Hungary 2024 Ext Red Bull Ring 2025 Ext Las Vegas 2024 Ext - (This will load however the track appears misconfigured with the sponsor barrier colliding with the Pit Lane) Melbourne 2024 Ext Monaco 2025 Ext Whenever I try to load these tracks onto Assetto Corsa via championships, it refuses to load me in with a pop up stating "Can't launch the race: track layout "layout_f1_2024 is damaged" All these tracks were installed via content manager so I am not sure if CM hasn't extracted them properly, I have tried extracting them into their respective track folders like the others but that has not resolved the issue. Las Vegas and Red Bull Ext have both displayed a warning saying they are audio misconfigured. However tracks like Suzuka 2025 Ext and Silverstone 2025 Ext work and load without fail

Zom

Update: Losail 2024 Ext is now working Bahrain 2025 Ext is now working

mark

Is it a dev issue? Im having the same problems with daytona. If you fixed it, how?

Baptiste Miklas

Hi Pyyer, I have a problem which is not listed here, on the Redbull Ring, all the billboards are good but there is no Gravel traps at last corners, and no White/blue lines, so how can I solve the problem ?

Wilfred Wong

hey bro im facing the same track is damaged issues howd you solve it?

James D McCullars Jr

Content Manager isn't the best way to load the extensions. For me manual has been better. Extracting the files/folders and dumping directly into your Assetto folder.

Tommy

Just delete, then re-download the tracks. It worked for me.

Mavil (edited)

Comment edits

2026-09-05 15:00 Some tracks, like jeddah for example... have race lines that are mostly yellow, there is no green. How to fix that ? Can someone help ?
2025-10-09 09:19 Some tracks, like jeddah for example... have race lines that are mostly yellow, there is no green. How to fix that ? Can someone help ? /edit: weeks later... not getting help with a paid account is ridiculous!

Some tracks, like jeddah for example... have race lines that are mostly yellow, there is no green. How to fix that ? Can someone help ? /edit: weeks later... not getting help with a paid account is ridiculous!

Kurt

Basic question, but if I want to update an extension with a newer version (such as vhe_interlagos v1.1, do I need to remove the earlier version?

Pyyer

Most of the time you just have to copy over and it should be OK 👍

【Lucida】 くーまん

After installing the extension and trying practice runs, I'm having trouble with the original track appearing on top of it, flickering. (For example, in Singapore, the old layout is displayed as the base, but the extension texture also alternates, and the driving line looks like the 2025 season layout...) Are there any ways to improve this or settings that I should review?

【Lucida】 くーまん

It seems there was an issue with the CMRT Broadcast app I had installed. Once I disabled this app, all my track extensions started working properly again!

淳浩 李

Having the same issue

Ismail Hussain

Heyy, I'm getting an error when trying to use suzuka. error creating texture, "track display dynamic texture". All my other mods work so I don't think its to do with anything else.

Ismail Hussain

nevermind i found out what was wrong. for some reason you cant use pure lcs, can only use pure gamma for any1 who has the same issue👍

Ismail Hussain

okay no it still wont work for races, only hotlaps

Ismail Hussain

okay final fix was changing lights patch version

Chris Facchi

Hi Pyyer, thanks awesome ! But i've a problem to fix with the delta, with the 2025 version the CMRT delta dont work, on the 2020 yes, do you know why? thanks

Lourençinho

Hey do you guys make costume tracks if yes please send me a message

David Rose

I dont appear to have any supporters in the nordschlife track near the tents etc, only a few marshalls dotted about. Ive check CSP settings, all good, and have looked for "crowd", "Specator" kn5 files but found nothing. Also turned world details up to max in CSP. I have people in the stadiums in the nurberg section but thats it. Any ideas? TIA

Stephen Curtin

Have issue with DRS zones. Activate with button, but nothing happens some times. This issue seems related to pushing track limits before the DRS zone, but not always. Started with COTA and now Mexico.