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Modding Guide

Learn how to install and manage mods in MoSim and extend your gameplay with custom robots and modpacks.

Security Warning

Mods contain DLL files (code) that run on your computer. Only install mods from trusted sources. Malicious mods can compromise your system. Always verify the source before installing.

How Mods Work

File Structure
MyModPack/ ├── MyModPack.bundle // Mod data ├── MyModPack.dll // Code └── catalog.json // Metadata

1. Structure

Each mod is a self-contained folder. The .bundle file holds the mod data (3D models, textures, and other assets), while the .dll file contains the compiled code that defines the robot's behavior. The catalog.json file provides metadata about the mod.

2. Installation

Place your mod folder into the game's persistent data directory. The game automatically loads all valid mods found here on launch.

%userprofile%\AppData\LocalLow\CascadeStudios\MoSimulator\Mods

3. Playing

In the play menus, look for the Modpack Dropdown to select your active mod. Note: Using a modded robot will tag your run as "Modded" on the UI for scorekeeping fairness.

Community Mods

Browse verified mods created by the MoSim community. All mods are reviewed before appearing here.

Loading mods...
Rating System— Click a tier to learn more
Click or hover over a tier to see what each rating means

Ratings reflect simulation accuracy, not fun or effort.

Submit Your Mod

Share your custom robot mod with the MoSim community. All submissions are reviewed by our team before being listed.

  • Host your mod files on Google Drive, Dropbox, or similar
  • Include all required mod files (bundle, dll, config)
  • Mods are reviewed within 24-48 hours
Name for your mod collection
Comma-separated if multiple robots
Provide public links to your mod files for each operating system
Optional - only visible to reviewers, not displayed publicly

For Developers

Interested in creating mods? We provide tools to bundle assets and compile robot DLLs compatible with MoSim's architecture.

DocumentationRepository

License Agreement

By creating or using mods, you agree to our Modding Policy. Mods must not include malicious code or violate intellectual property rights. We reserve the right to blacklist mods that violate these terms.