Ultra Realistic Truck Physics & Cabin Motion (Kass): realistic physics for ATS 1.62 for American Truck Simulator
Full physics overhaul for ATS: chassis, suspension, braking, trailer stability and cabin motion, with keyboard, gamepad and wheel support. Compatible with 1.62 per the author; over 8,400 subscribers. Updated November 10, 2026.
Download Ultra Realistic Truck Physics & Cabin Motion (Kass): realistic physics for ATS 1.62
More screenshots on Steam Workshop ↗
What this mod does
ATS – Ultra Realistic Truck Physics & Cabin Motion by Kass (Brutal Universe) is a complete physics overhaul for American Truck Simulator. Version 3.x reworks the chassis and suspension, braking, trailer stability and flex, cabin pitch, roll and bounce, weight transfer, clutch and drivetrain, and adds grip loss on wet roads.
What’s included
- Truck and trailer physics built to make you feel the weight of the load.
- Support for keyboard, gamepad and steering wheels (Logitech G29 and G923, Thrustmaster T300 and T500, Fanatec CSL DD).
- Recommended in-game settings: truck stability 0%, trailer stability 10–20%, suspension stiffness 25%, braking intensity 100% and ABS on. Full guide in the ReadMe.txt.
Version and compatibility
The author states it is compatible with ATS 1.62.x and updated it on November 10, 2026 (first published December 3, 2025). It is designed to pair with Realistic Brutal Graphics & Weather from the same team, and the author warns not to run any other truck physics mod at the same time. The latest version is also on brutaluniverse.com; the author asks that it not be re-uploaded.
With over 8,400 subscribers and 111 ratings, it is currently the most used physics mod on the ATS Workshop. It takes up only 40 KB.
Holyfix Check
Will it work with your mods?
Load your game.log.txt and check whether this mod is for your ATS version, whether you're missing a mod or DLC it needs and where to place it.
It's in Documents › American Truck Simulator › game.log.txt. It's read in your browser: the file is never uploaded.
Something else failing? Holyfix for ATS checks all your mods at once.
User rating
Highlights and things to keep in mind
- Compatible with ATS 1.62.x per the author
- Over 8,400 subscribers
- Keyboard, gamepad and wheel support
- Do not combine it with other truck physics mods
- Requires adjusting the gameplay settings as the author indicates
- The author asks that it not be re-uploaded
Requirements
- American Truck Simulator
- A Steam account to subscribe on the Workshop
How to install it
- Open the mod page on Steam Workshop and click "Subscribe".
- Start ATS and enable the mod in the Mod Manager; disable any other truck physics mod.
- In Options › Gameplay set truck stability 0%, trailer stability 10–20%, suspension stiffness 25%, braking 100%, ABS on.
- Read the mod's ReadMe.txt for the full settings guide.
Version history
-
3.x10 Nov 2026Current
Update for ATS 1.62.x
-
1.03 Dec 2025
Mod published
Common problems
Is it compatible with 1.62?
Yes, the author states compatibility with ATS 1.62.x (updated 2026-11-10).
Can I use it with another physics mod?
No: the author warns not to combine truck physics mods.
Does it work with a wheel?
Yes, it is tested with Logitech G29/G923, Thrustmaster T300/T500 and Fanatec CSL DD, plus keyboard and gamepad.
Does it change graphics?
No, but it is meant to be used with Realistic Brutal Graphics & Weather.
More mods for ATS
ATS 1.61 
ATS 1.61 
ATS 1.60Multiplayer 
ATS 1.57 
ATS 1.58