Does TerrainMod work in multiplayer?

The author has not stated multiplayer support yet. Check the comments and the field reports of other players.

How do I install TerrainMod?

Install RedLoader (RedManager can do it for you), download TerrainMod 1.0.1 from this page and put it in the _RedLoader/Mods folder inside your game directory. Launch the game and press F1 to confirm it loaded.

What does TerrainMod need?

Only Sons of the Forest on Steam and RedLoader. It has no other dependencies.

Does TerrainMod work on the current game patch?

There are no compatibility reports yet. If you try it, add a field report.

TerrainMod

lets you paint terrain texture layers directly in Sons of the Forest.

R9X3M Quality of Life Version:v1.0.1 Updated Jun 26, 2026

Downloads: 1,450 total
Downloads this week: 26 this week
Followers: 0 followers

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Features:

Toggleable in-game terrain brush
Paint terrain while aiming at the ground
Adjustable brush radius
Adjustable terrain layer selection
Small HUD showing brush status, layer, radius, target terrain, and saved patches
Remove the most recent patch
Replay saved terrain patches
RedLoader mod settings support
Remappable keybinds
Save/load support through RedLoader custom save data

Field notes

All 2 versions

v1.0.1
Latest Jun 26, 2026

Code cleanup and performance improvements
Cached the main terrain collider after the first lookup instead of repeatedly searching for the terrain object during normal update/aiming behavior.
Reset the cached terrain reference when the active world/save state is cleared, preventing stale terrain references between sessions.
Replaced unnecessary reflection for standard Unity TerrainData properties with direct property access.
Updated brush preview logic to use direct TerrainData access for alphamap dimensions, terrain size, and height sampling.
Updated aiming and painting coordinate calculations to use direct TerrainData properties.
Replaced reflected GetInterpolatedHeight calls with direct TerrainData.GetInterpolatedHeight(...) calls.
Updated pending save replay logic to use the cached terrain lookup path.
Kept the lower-level alphamap mutation and restore logic unchanged where IL2CPP-specific handling is still needed.
v1.0.0
Jun 26, 2026

First release

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Frequently asked questions

Does TerrainMod work in multiplayer?: The author has not stated multiplayer support yet. Check the comments and the field reports of other players.
How do I install TerrainMod?: Install RedLoader (RedManager can do it for you), download TerrainMod 1.0.1 from this page and put it in the _RedLoader/Mods folder inside your game directory. Launch the game and press F1 to confirm it loaded.
What does TerrainMod need?: Only Sons of the Forest on Steam and RedLoader. It has no other dependencies.
Does TerrainMod work on the current game patch?: There are no compatibility reports yet. If you try it, add a field report.