Farming Simulator 25: Best game.xml for Dynamic Field Physics

The objective is to allow the physics engine to utilize a larger Fixed Timestep buffer, preventing the terrain from “snapping” into place during heavy deformation.

File Path & Access

File Path: %USERPROFILE%\Documents\My Games\FarmingSimulator2025\

Step-by-Step Instructions:

1. Press Win + R on your keyboard, paste the path above, and press Enter.
2. Locate the file named game.xml. (Crucial: Create a backup named game_backup.xml before editing).
3. Right-click the file and select Open With > Notepad or Notepad++.
4. Find the <graphic> and <physics> sections (if present in your version).
5. Modify the values to match the “Dynamic Soil” profile below.
6. Save the file and restart your simulator.

Optimized “Dynamic Soil” Configuration Block

<graphic>
    <renderer>D3D_12</renderer>
    <lowLatency>true</lowLatency>
    <maxFramesQueued>2</maxFramesQueued>
</graphic>

<physics>
    <dynamicTerrainSubsteps>4</dynamicTerrainSubsteps>
    <collisionUpdateDelay>0</collisionUpdateDelay>
    <foliageBendingQuality>3</foliageBendingQuality>
</physics>

Parameter Details & Technical Purpose

Parameter	Recommended Value	Technical Purpose
dynamicTerrainSubsteps	4	Increases the frequency of soil deformation checks, making tire tracks and plowing smoother.
collisionUpdateDelay	0	Disables the delay for object collisions, essential for accurate trailer hitching and log handling.
maxFramesQueued	2	Balances input lag with GPU throughput to prevent stuttering during high-particle field work.
foliageBendingQuality	3	Enhances the “Active Physics” of crops as they interact with your machinery.
renderer	D3D_12	Ensures the game uses the DirectX 12 Agility SDK for better multi-threading.

Best Practices for 2026 Farming Simulation

To fully experience the depth of FS25’s physics engine, follow these additional GameEngineer.net technical steps:

• The “Tire Sinking” Calibration: In the in-game settings, ensure “Real Dirt Fix” or its equivalent internal setting is set to “High.” In 2026, this setting is heavily dependent on the dynamicTerrainSubsteps we modified in the XML; without the XML tweak, “High” dirt settings can cause frame skipping.
• DirectStorage for Field Data: FS25 streams field deformation data constantly. To avoid “hiccups” when driving between different fields, ensure the game is on an NVMe Gen4/Gen5 SSD. The physics solver requires fast access to the Terrain Displacement Map ($D_{map}$).
• NVIDIA Reflex / AMD Anti-Lag: Enable these in the game.xml (via lowLatency) or the in-game menu. This is vital for “Front Loader” work, where precise physics interactions require zero input delay.
• Shader Cache Management: If your field textures look “flat” or take time to load their depth, delete the shader_cache folder in the same directory as the XML. FS25 needs to re-compile its Displacement Shaders whenever physics settings are changed.