MelonLoader Installer

May 10, 2026 · View on GitHub

MelonLoader Installer

The Official Dedicated Installer for MelonLoader.

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How does it work?

The installer should automatically list installed Unity games on your machine.

Supported game launchers on Windows

  • Steam
  • Epic Games Store
  • GOG
  • Meta Store

Supported game launchers on Linux

  • Steam

Supported game launchers on MacOS

  • Steam

macOS first-launch note:
The installer is not notarized with Apple, so Gatekeeper may refuse to open it on first launch
("cannot be opened because the developer cannot be verified")
To bypass, either:
Right-click MelonLoader Installer.app → Open → Open in the confirmation dialog
Or run xattr -dr com.apple.quarantine "/Applications/MelonLoader Installer.app" in Terminal once after installing.

Games from unsupported launchers

If the game you're trying to mod isn't listed, you can locate it manually by clicking on the Add Game Manually button.

MelonLoader Installation

To install MelonLoader, click on the game you wish to mod. Next, select your preferred version and hit the big Install button.

Nightly builds

We strongly advise against enabling Nightly builds unless you know what you're doing.

Nightly builds are bleeding-edge builds, generated right after any changes are made to the project. They can be enabled with the switch under the version selection menu.

Contribution

Contributions to this project are welcome! If you wish to contribute, please adhere to the following guidelines:

Building the Project:

Ensure you have the .NET 9.0 SDK installed on your machine.
You can build the project locally using the following command:

dotnet publish

Pull Requests:

All pull requests should be made towards the development branch. The master branch contains the source code for the stable release and is protected to ensure stability.

LICENSING & CREDITS:

MelonLoader.Installer is licensed under the Apache License, Version 2.0. See LICENSE for the full License.

Third-party libraries used:

External tools downloaded:

  • MelonLoader is licensed under the Apache License, Version 2.0. See LICENSE for the full License.

See MelonLoader Wiki for the full Credits.