Union Island

Union Island 0.9

Login or Register an account to download this content
Buy me a coffee via Paypal

Please support this modder with a small donation.


video by @RustyRussell84

Union Island is one (of 32) island of St Vincent & the Grenadines. Located in the Caribbean sea, it has a population of around 3000 habitants. The summit reaches 999 ft (304m). It's a paradise for wind surfing. Driving? not so much... Luckily my roads aren't accurate, and made of asphalt, instead of the concrete real ones!

I took a lot of liberties redoing the island. I made it to scale, but the roads in real life are limited and all made of concrete. The West only has forest path for example, whereas i made perfectly raceable roads all around.
Please note it is not a racetrack, and you should drive accordingly :)

Everything is made from scratch with my own two hands. As such, please respect my work and don't use it elsewhere without my permission. And please don't modify or edit it in any way, trust my choices.
It's also my very first track, so expect broken things. Feel free to : report stuff.
Also please do read the FAQ below among the rest ;)

Common knowledge : https://www.racedepartment.com/threads/mod-installing-tutorial-video.135781/
Nothing special here,
Extract the archive on your default track folder : C:\Program Files (x86)\Steam\steamapps\common\assettocorsa\content\tracks
You need 7z program : https://www.7-zip.org/
CSP not mandatory; version recommended : 0.1.76
Merci à :
Phoenix77 for the inspiration, tips, support and help
LilSki for his petrol station, and all his tutorials
AccAkut for his tips and bonus portable loo
Fat-Alfie for the inspiration + ads :p
JackCY and his bug hunt time + recording AI
Nico and his insights
LeBluem for his help with CSP
Mike08 (MJaY_8) for his help on csp grass & global ambient cohesion
GTAce for the work on the cameras
OrlandoEdits for Tony's restaurant (made in Puerto Rico!)
All the (un)fortunate beta testers ;)
& Mario for his street art (not the ones signed Kobra !)
- Freeroam : 30+ km, 45 pits, no AI line, no cameras, no race start, one time gate in Ashton if you want to create your own lap
NO AI line means NO cameras. You could always copy the ai + camera from another layout, but it will never cover all the roads
- Scenic : 17.5 km, 24 pits, AI line, Cameras, hotlap/race/weekend, physical bales
- West : 12.2 km, 24 pits, AI line, Cameras, hotlap/race/weekend, physical bales

- 700.000+ tris FFB road mesh
- collision for most objects
- LOD distance set on most objects
- Fully covered terrain with bush & trees, the old fashion way
- camTool set by Atrupelador : here

Recommended (Not mandatory) : 0.1.76
Night lights, rain, csp grass
tips : in ext_config.ini I turned off the lights_series (keyword : "heavy" ) that were causing heavy framerate drop. Feel free to turn them back to ACTIVE = 1 if you want the full night experience. Mostly the light being casted from the windows at night.
-Traffic not working ?
and presets here (remove space and dot, you know) https:// acstuff dot ru/s/0dmn0S

-Cameras for Freeroam ?
Cameras need AI line. No ai line means no camera. Besides, even if, you couldn't cover every road, so would end up often with a wrong camera.​
For your own use, you can try copy the ai + camera from another layout​

-The road is very bumpy
i've tried and create a believable road surface, with its imperfections, as you'd find in real life. It is not a racetrack. Try and set softer suspension !​
-I have low framerate ?
V0.8 see great improvement in FPS, if you still have low framerate, maybe try renaming extension folder to remove all CSP features, see if that helps​

-My game crashes ?
The track works for many, make sure you test with a kunos car, and recommended CSP / sol version. Check with another track etc. You can also try to rename the extension folder, see if the track runs without any CSP features​

-My game looks dark/bright ?
Check other tracks to compare. Check my screenshots or videos people made on YT, if it doesn't look like that, try backup your settings and reset to detault. You may also reinstall a clean version of CSP / Sol.​

-CSP water for the ocean ?
Very much NO.​
CSP water presets are too limited. It looks silly, the sea isn't a mirror, check actual photos​

-VAO patch ?
Don't you dare come up with a vao patch none-sense for my track and insult the hours i spent baking my own ambient occlusion on props and terrain​
Folder inside the track folder with maps & logo

Once upon a time...
After helping Phoenix on LA Canyons, and PCH more recently, i always wanted to try and create my own roads. Being in control of the whole process of creating a track from scratch, and see how that exercice would work. It just needed said track. I lived 7 years on the island of Cyprus, and really wanted to recreate the feeling i had back there driving the Caterham. But not being there anymore would prove difficult to get the references etc. since Google map is limited to visit the island.

Time passed, and one day, out of the blue... as i was exploring the globe with Flight Simulator, i flew with a jet from Trinidad & Tobago all the way to Puerto Rico, no gps, just following the flow of islands. That's how i got the idea of making one for Assetto Corsa. And how fun it would be to have a "complete" map surrounded by water, something that's never been done (to my knowledge). First i thought of Canouan island, which is 30km away from Union Island. The shape looks cool, although a bit narrow. Then flying around a bit more, i passed Union Island and thought that was it.

screenshot from MSFS the 9th of november

Next thing you know i gathered all the nasa imagery i could find, and elevation data and jumped in 3dsmax. As soon as i got a free weekend i started working on it 3 days in a row like an impatient kid. After which i had an early version, naked terrain, basic barrier not to fall at every corner, and very early version of driveable roads

21 november 2020 :

A week later, random palms, planted road
28 november 2020 :

and so on... i wish i was more organized and did a proper timelapse progress !
But i remember the first drive was phenomenal. The feeling of driving on a track of my own creation, built from an empty scene felt surreal.
Quickly i really wanted a Test Drive Unlimited feel with a full "around the island", and this is what became the Scenic layout. It is not half an hour drive like the original, but with 17km and not all perfect asphalt, it certainly is challenging to master !

There's been a lot of experimenting, reading tutorials, and more experimenting. But almost 400 hours later (see details here), it starts to feel a bit more vibrant and alive than the screenshots above :p
And now, even though it's not finished and perfect as i'd like it to be, my wrist is calling a stop as i've spent more than 70 hours last month alone, on top of my actual job... Decided it was time to share it and take some well deserved time away from the computer !
There's still lot of things i want to add and polish, so stay tuned for later updates...
- add details in towns (ground floor shops, markets etc.)
- add few more roads following existing ones
- improve side road transition (!)
- merge any soil texture with terrain mask
- add "race" detail for timed layouts
- add easter eggs (most important part)
- redo a FFB mesh using the visible types of tarmac
- improve performance (reduce 99% cpu when lot of AI !)
- improve AI line. They do crash a lot at the first corner on West layout ... and in the harbor on Scenic
- any bug or issue, please check with a default kunos car, with/without Shader patch, and then report it on the discussion thread
- please note; modders aren't responsible for CSP breaking stuff every now and then :)

@mikey79 awesome work :

20210808-233157-union_island-bo_singer-accum.jpg 20210809-223344-union_island-bo_singer-accum.jpg 20210812-172027-union_island-bo_singer_awd-accum.jpg 20210821-202207-union_island-ks_mercedes_c9-accum.jpg 20210823-201943-union_island-ks_alfa_romeo_4c-accum.jpg 20210825-191824-union_island-ks_porsche_911_carrera_rsr-accum.jpg 20210828-123153-union_island-ks_bmw_m235i_racing-accum.jpg 20210830-224118-union_island-ag_subaru_impreza_wrx_tuned-accum.jpg

too many <0.50 $ donations.
Below 50cts almost everything goes to Paypal, not me. So thank you for them.

Latest updates

  1. Actual log translated from "traffic traffic" (v0.9)

    v0.9 - June 7, 2022 - couple more side roads (not very high polygons for the physical) - added...
  2. dirt & idiots on the road

    traffic, traffic, traffic traffic traffic traffic traffic traffic traffic traffic. traffic...
  3. Performance Update +fix

    delete previous folder for a clean install sorry, i forgot physical of a side road in Ashton in...

Latest reviews

The ultimate Assetto Corsa free roam map
Literally I can't describe how good this thing is. I am simply speechless. What I would like to see is more raceable layouts with AI. I imagine the COULD be a lot of them.
Fantastic attention to detail! On a lot of free roam tracks that are based in nature the hilltops usually tend to look like they have pasted trees on them and this is an immersion breaker for me. With Union island the placement of all the vegetation, bushes included is top notch and very believable. Also the sea and it's difference in colors and horizon looks totally pacific. In short this is just like you are there; thanks for sharing this gem with the AC community!
N°4 and N°10 are nice, but the 0,01 € donators sign is just hilarious! lmao... Tyvm, I love cruisin' the Island in a KTM X-Bow R... let you 10 there (stapled backside of the sign)... Curious if I'll discover further things...
Very, very good
What an AMAZING Track only just getting into sim racing wish I would have a long to ago, A big thank you for sharing this fantastic work and detail.
very good track i found n°4 and n°10 very fun to explore the map
Amazing detail! Thanks for the hard work/sharing this mod!!
I like this track, landscape, planes, ofu and pictures of OSS117 aka Jean Dujardin. i can't wait for the update.
First modded track I have ever downloaded (latecomer to Asetto after buying a vr headset last year and just built a ninja pc so I can use pcvr. I downloaded this 4 days ago and have already clocked up 20 hours on it. It's fantasic and I've had the best fun racing the little Abarth 500 round it. I've been gaming since 1980 (Yes, I am that old. 61! :-) ) and with the exception of RDR2 and The Last Of Us, I don't think I've ever had a better time. Racing this track in VR is an astonishing experience. Fantastic design and visual and superb track. The brief offroad interlude is great! If this is your first ever mod, I simply can't wait to see what you do next. Amazing work. Thoroughly deserves 5 stars. Thank you, thank you, thank you!
Fantastic work, just a great immersive world to get lost and drive around aimlessly in. The attention to detail is outstanding.
Dude, this map is absolutely stunning. And it's FREE! You're putting the FDR map guy to SHAME!!!!
Thank you SO much!
I can tell this was a passion project and perhaps a one off but I truly wish that you will make more.
Again, thanks for this beautiful track!
One of the best open world maps available for AC and an absolute joy to drive! Tight turns and a really fun downhill into a sweeper that is a total blast to race against others is the highlight of this stellar map. You need to go for a drive!
Ok, so this map is quite the surprise (and the reason I'm leaving my first review on this site). It has amazing scenery, a great layout, and is very adaptable to either slow cruising in a classic road car or quick laps in a street racer (although, watch some of the bumps).

What's great about it is not only its flexibility, but the fact that the road surfaces are so varied. You have fresh, smooth tarmac, ancient, rough roadways, dirt and sand all in one loop. You really feel like you're driving on a small-population island. The atmosphere is fantastic. In a faster car (even something like the Porsche 912), this loop is a challenge. There are some surprising twists and turns with long drops into the ocean if you screw up.

My suggestion is to take a slower classic road car around the track first to get used to where those surprise twists and turns are located before trying to hot lap this loop. It's a great way to enjoy the scenery and prepare yourself for the lap of a lifetime. One of the best tracks for AC I've come across. Kudos!
Looks familiar for me, it looks like fh5 lol!
Assetto Test Drive Unlimited Corsa.
Superb! Outstanding achievement for AC modding.

This track is up there with Shutoko Revival and a bit ahead of LAC.
Traffic works fine with just 10 cars in a Track Day mode. Version 0.9 is practically perfect (remaining bugs are minor), I can only wish for nicer traffic code in Assetto Corsa itself.

Bravo BenO'Bro!
Ben O'Bro
Ben O'Bro
Thank you sir, it's easy to forget how appreciated are those kind reviews <3
Карта супер, но как настроить трафик что бы он появлялся не в рандомном месте по карте а перед тобой
Ben O'Bro
Ben O'Bro
Si seulement quelqu'un avait inventé un outil pour traduire les langues facilement.
Excellent map
Ben O'Bro
Ben O'Bro
Cheers :)
Ben O'Bro
File size
342.2 MB
First release
Last update
User rating
4.98 star(s) 251 ratings

More mods from Ben O'Bro