American Truck Simulator Physics Free

GDC Logistics – Realistic Physics Mod (ATS) for American Truck Simulator

Demanding physics for wheel and pedals: grip that breaks if you push too hard, brakes that fade on long descents and a cab with its own inertia. Free on Steam.

Author: busy_and_broke Compatible: No version listed; updated 2025-12-17 (ATS 1.57 era) Updated: 17 Dec 2025 Reviewed: 24 Oct 2026
Download GDC Logistics – Realistic Physics Mod (ATS)

More screenshots on Steam Workshop ↗

What this mod does

GDC Logistics – Realistic Physics Mod, by busy_and_broke, is a full physics overhaul designed for players using a wheel and pedals. It swaps the game’s forgiving handling for a model that rewards skill and punishes mistakes.

Progressive grip

Tires are less forgiving: grip is stable in normal driving, but it has a breaking point. If you enter a corner too fast, especially on slippery surfaces or with a heavy load, you’ll get understeer and the risk of the trailer jackknifing. Stiffer tires give a firmer on-center steering feel on the highway.

Brakes that heat up

The brakes mimic the thermal behavior of real drum brakes and take a long time to cool down. Riding the service brake down a long grade causes brake fade: you need to use the engine brake or the retarder, and runaway truck ramps become useful.

Mass and inertia

The chassis has softer suspension and the heavier cab moves separately: it rolls and pitches when braking and turning.

Version and support

The latest update is from December 2025 and the author doesn’t list a game version. The installation guide is in a Google Drive document linked on the page, and support is handled on Discord because comments are closed.

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.

Choose game.log.txtor drop it here

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

—
No ratings yet. Be the first.
Tried it? Rate it: Anonymous, one vote per person.

Highlights and things to keep in mind

Highlights
  • Brakes that heat up and lose effectiveness
  • Cab with its own inertia
  • Very popular for driving with a wheel
Keep in mind
  • No game version listed
  • Recommended settings are in an external guide
  • Comments closed: support only on Discord

Requirements

  • American Truck Simulator (no version listed; updated in December 2025, 1.57 era)
  • Steam account
  • Recommended: wheel and pedals

How to install it

  1. Open the “GDC Logistics - Realistic Physics Mod (ATS)” page on Steam Workshop and click “Subscribe”.
  2. Launch American Truck Simulator and wait for Steam to finish downloading the mod.
  3. In your profile's Mod Manager, enable “GDC Logistics - Realistic Physics Mod (ATS)”.
  4. Follow the installation and setup guide the author links on the mod page.

Version history

  1. 17 Dec 2025Current

    Last update (4 changelog notes; contents not read)

  2. 16 Nov 2025

    Release

Common problems

Does it work with a controller or keyboard?

It's designed for wheel and pedals; the description doesn't mention other controls.

Why do my brakes fade on descents?

The mod simulates drum brake heating: use the engine brake or retarder.

Where do I get help?

On the author's Discord; Steam comments are closed.

More mods for ATS