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First, I want to say thank you to everyone who has continued to play, support, test, and give feedback on Demolition Derby: The Fairgrounds. I really appreciate everyone’s patience and continued support while this update was being worked on.

A big part of this update was the derby AI. This ended up being one of the largest reworks I have done for the mod. I rewrote the AI several times, tested different systems, and kept tuning it until the cars felt more competitive, aggressive, and realistic in a derby. Some versions worked well in certain situations but not others, so it took a lot of trial and error to get the AI to a place where it felt solid across different tracks, arenas, and vehicle counts.

I feel like the AI is now in a much better place. It should be harder to beat, better at recovering when stuck, better at finding targets, and better at handling walls, corners, clusters, pits, and different arena shapes. Team mode also added another layer of complexity, so the AI now has to understand teammates, opponents, and how to avoid stacking on the same target.

Along with the AI work, I also fixed a lot of smaller bugs that I found while testing, including a texture issue that had been around for quite a while. This update also includes the BeamNG v0.32 BX vehicle changes, rebuilt derby configs, team roof signs, new debug tools, and several track and scenario fixes.

I know many of you support the game monthly, and I do not take that for granted. I want these updates to be worth the wait, and my goal with this release was to make a meaningful improvement to the way the derby actually plays, not just add a few small changes.

Thanks again to everyone who has stuck with the mod and helped make it better. I hope everyone enjoys the new changes, and I’m excited to see how the new AI and team mode feel in actual derbies.Update 10.12.2 BeamNG v0.32 & Team Mode

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Team Mode:

1. Team mode is now available in the scenario menu — assign drivers to teams, configure team names/colors, and run team derbies with team scoring on the end screen.

2. Roof signs now display team colors (outline, stripes, and lettering) so you can tell which team a car is on at a glance. Derby Lands logo added to roof signs.

3. AI targeting updated for team play — opponents are prioritized, teammates are avoided, and tag-team pass lanes help spread hits instead of stacking on the same target.

Derby AI (major update):

4. Completely rebuilt demolition derby AI logic — improved targeting, attack commitment, wall/corner recovery, cluster escape, and overall aggression. This was a large rework and the main reason this release took extra time to finish.

If you prefer the older derby AI, you can still enable it from the Settings menu by selecting Use Original Derby AI.

Please note: the original derby AI does not support Team Mode. Team Mode requires the new AI system it will auto load the new system.

The screenshot below shows the original derby AI.

This is a screen shot of the new derby AI

5. Added jam detection and ESC (escape) logic so AI cars can break free when stuck in traffic, pinned along walls, or bunched up in a cluster.

6. Arena awareness improved — circular arenas, four-corner quads, and custom arena shapes are supported for wall boundary and pit detection.

7. Split AI support code into modular extensions (arena shape, pit detection, and debug overlay) for easier tuning and troubleshooting.

AI Debug:

8. New menu option: Enable AI Debug Mode — shows in-world AI overlays (velocity, aim, state) and opens the Derby AI Debug app so you can watch what the AI is doing and change settings on the fly during a derby.

9. AI Debug can broadcast config/state changes to all cars in the heat. Bind "Green Derby: AI Debug Off/On" in Options > Controls (advanced) to toggle overlays with a key.

BeamNG v0.32 / BX Vehicles:

10. Migrated Ibishu Coupe to Ibishu BX-Series for BeamNG v0.32 compatibility.

11. Rebuilt all BX derby configs with correct steel wheels (removed race slicks, wings, and aero parts).

12. Added the derby driver model to BX vehicles.

13. Legacy coupe class selection automatically maps to bx in menus and scenarios.

Tracks, Scenarios & Fixes:

14. Fixed flashing ground textures on some tracks (decal data updated for current BeamNG format).

15. Improved vehicle extension loading with staggered spawn timing to reduce load errors on large fields.

16. Fixed arena waypoint / boundary detection on several tracks. Circle arenas and four-corner arena layouts now work correctly with wall boundary logic.

17. Updated Mini Mania GearGrinder99x mod logo image in the vehicle mod menu.

18. Various menu and track compatibility fixes carried over from the team mode and AI updates.19. The installer has been updated and is now code signed. This should help Windows recognize it as trusted and reduce security warnings during installation.https://www.patreon.com/posts/diecast-derby-117116950/

Demolition Derby: The Fairgrounds diecast cars are also available now. If you want to support the game and add something unique to your collection, this is a great way to do it.

Every purchase helps support continued development, future updates, and more content for the game. Thank you to everyone who has already ordered one or helped spread the word!Current Update 10.12.2 Instructions:

Requirements:

BeamNG.drive is required to play this mod.

https://www.beamng.com/game/

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The Fair Grounds Mod:

Download Link 1 - Windows Installer

Link 1

Direct Install ZIP Version - NOT NEEDED IF LINK 1 ABOVE WORKED

Link 1 

Mirror Link 1------------------------------------------------------------------------------------

Tack Pack:

This is a second file for JBL's Extra Tracks

Download Link 2 - Windows Installer

Link 2

Direct Install ZIP Version - NOT NEEDED IF LINK 2 ABOVE WORKED

Link 2

Mirror Link 2

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Install Instructions:

1) Download the file listed here under Link 1 and/or Link 2 and then run the installer.

2) Choose Allow or Keep for any popup messages for windows defender or your virus scanner.

3) Double check that the installation folder is in the BeamNG.drive mods folder.

DO NOT INSTALL IN ANOTHER LOCATION.

Then click Install and agree to the license.

4) The installer will register the mod on your computer.

5) Once the install has finished startup BeamNG

6) Start BeamNG.drive

7) In Scenarios or Freeroam find The FairGrounds Mod

ENJOY!

If the download installer or instructions from above do not work for you.

Direct ZIP File Install instructions:

1) Open your mods folder for BeamNG C:\Users\username\AppData\Local\BeamNG\BeamNG.drive\current\mods

2) Place the green_derby.zip or green_tracks.zip file into the folder

Troubleshooting

1) When starting the scenario you only get screen showing the black background with press esc to load the menu.

a) Check for old "green_derby.zip" or "demo_green_derby.zip" files in your mods folder and delete them.  Also make sure you don't have "green_derby_1.zip" or other copies of the files in the mods or repo folder.

b) Clear cache

c) Deactivate all other mods in the menu.

2) AI is not moving

This can caused by a conflicting mod.  Deactivate all mods and try again.  Check the logs by press ~ or check the BeamNG.log files.

Files

Comments

jacob yeager

2 questions I have about the new update. Will the tracks I have installed prior to this update still work with this update? And the team option. Are my team mates AI or is that just for multiplayer use?

Cashus brush

Why would he come out with an update for multiplayer use just for it to be person v person not person v AI. Just read the whole post bro.

jacob yeager

Okay thanks. Since you know it all, do you have an answer for my first question as well?

Cashus brush

Yes but Im unaware of what track you have so I would say most of them would still work but then again just be grateful he finally updated his mod.

Schmidt Happens Racing

just updated and my settings menu doesn't have the 'AI debug' or the use original AI' options? Any remedies for this?

derbylands

You can setup teams with human vs human or human vs ai. The old tracks should still work. Let me know if they don't.

derbylands

What is the version number at the top of the menu?

Schmidt Happens Racing

Ah. it says 10.12.1 but I did the zip file update. do i need to delete something from my folder?

derbylands

You might have to go into your repo folder and delete the old green_derby.zip. Then rerun the installer.

Bryan Gipson

can i have help with the team

Dalton Hutchings

Why do the ai get against the wall and just floor it in reverse

Linden Barendregt

Dude this ai is so much better than you it feels like it’s actually hard to win now

Daniel Giles

I cant get my scenarios to load no matter what maps i use i did all the troubleshooting :(

Jeremy Robinson

Anyone know how to move the UI app locatons?

Squarebody8203

When I run a team derby vs ai I load in a pre built car then I do the same with my 2 team mates and the cars don't move

Greg Quirk

i used an rdp map pack and the ai would randomly hit the wall they seemed to run better and the team seemed to work fine theyd just randomly hit the wall

Shawn waugh

Most of the ai cars are getting stuck against the rails/walls of the tracks since doing update.

Nathan Sousa

how do you assign cars to teams?

derbylands

Are you getting any errors when pressing ~ key?

derbylands

Which apps are you asking about? The ones from this mod are the team app and players.

derbylands

I'll have to check on loading in pre built cars.

derbylands

Select Team mode from the menu and then go to the opponents tab to select the team for each. You will also need to select a team for yourself at the top of the main window.

derbylands

Select Team mode from the menu and then go to the opponents tab to select the team for each. You will also need to select a team for yourself at the top of the main window.

derbylands

I tested this but can't get it fail? What options are you selecting?

Squarebody8203

Load in more then one built car. Into the rdp fair map

Billy

still cant load the large cars

Jeremy Robinson

Yes, those apps. I'm unable to access/modify the UI menu while playing Fair Derby, and while I'm in freeroam I can't find the profile in which to edit that screen

Schmidt Happens Racing

Mine are doing the same thing. Every derby there is at least 3-5 cars that get stuck against the wall and time out (because im tired of pulling them off the walls) They time out cuz they're just reversing into the wall and not going anywhere

Schmidt Happens Racing

I got this figured out. just deleted the new update links then reinstalled and was good

Mason Peck

Also having issues with multiple ai cars stuck against a wall. Major FPS drop (~30fps) weather it’s team or not. Switched back to original ai (~140fps) & zero fps issues.

Matt

Mines been doing the same thing, im not trying to complain by any means because i appreciate his effort and time. But it is annoying...hopefully someone can figure out how to fix it.

Noah Mitalovich

All my ai cars are just going to the corners of the track and staying in reverse and wont drive out of the corner any fixes?

Bradley McCurdy

neither link will work for me just keeps downloading an unconfirmed file

brady

why are my AI driving into walls and keeping it pegged out and then randomly working and then doing it again seems like its worse when i updated

Trevor Bunyak

What’s the difference between tack pack and the other one?

Shadetree

AI cars are getting stuck against the walls, in corners, or completely launching over the barriers. When I went to spawn a team derby it launched the cars in middle of nowhere and an error message came up and took it back to the Bidwars homescreen.

wooper quagsire

the problem i have is my screen says loading menu cards....

Brennon Graves

I am having the same problem, not sure what else to do to fix it.

DunnGoneMuddin56

I dont know if its a mod conflict or just the Fairgrounds mod itself, but when I enter information like "Driver Name" in the Opponents tab it never saves it to the AI when I start a derby. If this is unintended, I'd love a fix for it. Also the AI do have a tendency to throttle into the walls on the initial start and time themselves out using the new AI pathing.

Ernest Sprague

is the mod broken for everyone or is it js me?

Dillon Bickett

The mod is not working it just gives me a screen of the sky and the sun how do i fix that

kp

same here i think its cause the game itself updated to 0.39 and this update is for 0.32 i think its to outdated maybe im not sure

DunnGoneMuddin56

The new 0.39 update broke the mod for me completely, even after a complete uninstall/reinstall. Definitely need a new update to Fairgrounds asap! Unplayable completely right now.

Noah Mitalovich

Will there be a update for 0.39 to where we can derby?

Dillon Bickett

i was looking at the fair grounds mod and found of that the scenario and it say that system is outdated how can i fix that plus i do have the new version dowloaded

Timothy

how can you lanche the game in v.032

Zac booker

anybody else's beamng do an update and now the scenarios tab is gone and cant play?

levi beers

how do i use the mod to derby with the new update

Jaxson Allen

when i enter the scenario my car is just floating in space

Pierce

yea me

Chad

has anyone found a workaround for the new update?

derbylands

I have the scenario working again but I am testing to make sure nothing else is broken before releasing the fix.

Chad

Thank ya

Ethan

from main menu click more, then gameplay selector, then scroll all the way down and should be there.

ScubieSane

they going to fix it so we can actually use it? ever since the new update I cant play the scenario

Zac booker

it says its depreciated and when you start it its just a grey screen

Flash14

Is fair grounds 10.12.2 fully compatible with beamng 0.39.4? It loads for me, but its unplayable. I've cleared cache and tested with other mods disabled, but that doesn't seem to be the issue.

Cruwsen

mine just turns black

Grease

when I load the scenario i get a screen that looks like I am in the sky...no vehicle and no intro screen. I am probably doing something wrong so if someone could point me in the right direction that would be awesome. I am new to beamNG and just want to derby. Thanks in advance!!

Dillon Bickett

do you guys know when the mod will work

Bruce

I just did a fresh membership, fresh install of BeamNG, followed all instructions for a grey screan and press esc!!!!! fix ASAP as this is not what I paid for please

DunnGoneMuddin56

Its because Fairgrounds is 7 versions out of date. The current update was made around v0.32. With it being now v0.39 and having a major update that overhauled alot, we need a new version built for v0.39.

Jeff Mckinley

any idea when the update will be ready?? im ready to rip the edsel

Kyle

can we get an eta on an update please

Wild Killer

so is this gonna get fixed not trying to be rude any way

Joe Simpson

Just curious how long it would possibly take to update the fair ground? If it’s gonna take months then I’ll probably re-scribe later cuz I just subscribed and it sucks not being able to use it. Or is there an older version That would work for now?

hayden keys

i cant even launch the game right now after 0.39, i am getting a continuous "ui error while loading, try launching in safe mode (mods disabled)" error. I have verified the integrity of the game files twice, once through steam and once through the in game launcher, launched in safe mode, deleted my mod file entirely, uninstalled and reinstalled the game, and i still am getting the same error. Happens with every single launch option possible, dx12, dx11, vulcan, vulcan safemode with logs, safe mode. Can't even get to the main menu. Any fixes? i just wanna see the new lighting :(