MelonLoader is a mod loader for Unity games, including Schedule I.

Installation Steps

Automatic Installation

Install a mod manager like r2modman, Gale for Thunderstore mods or Vortex for NexusMods mods. These mod managers should automatically install MelonLoader for you when you install your first mod or ask you to install it, if they can’t do that.

Manual Installation

Windows

Installing pre-requisites
Installing MelonLoader

Download MelonLoader 0.7.0 and run it.

The installer should automatically detect your Schedule I installation. If it does not, you can manually select the game folder. Select the game folder of Schedule I, which is usually located at C:\Program Files (x86)\Steam\steamapps\common\Schedule I.

Click “Install” to install MelonLoader.

Linux

It is assumed that you have a working installation of Schedule I on Linux (using Proton). If you’re using Wine, you can follow Windows steps or use winetricks in your Wine prefix to install the required dependencies.

Installing pre-requisites

Install protontricks for easy installation of the required dependencies.

This allows you to install .NET Desktop 6.0 automatically, via protontricks 3164500 dotnet6. You also might need to install the Visual C++ 2015-2019 Redistributable via protontricks 3164500 vcrun2015.

You can also do that with GUI (e.g. on Steam Deck) by opening the Discover app, searching for “protontricks”, installing it, and then launching it. From there select Schedule I, Select the default wineprefix and then Install a Windows DLL or component, and select dotnet6 and vcrun2015 from the list to install them.

Installing MelonLoader

Download MelonLoader 0.7.0 and extract it to the game’s folder.

Your game folder should contain the MelonLoader folder and version.dll alongside game files like Schedule I.exe.

To make sure MelonLoader starts with the game, add WINEDLLOVERRIDES="version=n,b" %command% to the launch options of Schedule I in Steam. Alternatively, if you are using Wine, you can handle the override in winecfg for your Wine prefix.

Example on Proton with GUI Protontricks:

Select Run winecfg from the Protontricks menu, select Libraries tab, navigate to New override for library, click the dropdown arrow and select version. Validate that the last position in the list below is version (native, builtin). Click OK, OK and close the window.

MacOS

There are reports of Schedule I running on MacOS using Wine, CrossOver or other Wine-based solutions like Sikarugir.

For the best chances of success, use one of listed solutions to run a Windows version of Steam and install Schedule I through it. This will be the way you run the game on MacOS.

Before proceeding with MelonLoader installation, make sure that you have a working installation of Schedule I on MacOS.

Installing pre-requisites

Install them in the same way as on Windows with CrossOver, or use winetricks in your Wine prefix to install the required dependencies (see Linux section).

If you’re using Sikarugir, you can open the Configure.app by clicking Show package contents on your Sikarugir-managed Steam installation, navigating to Contents and running Configure.app. winecfg can be found under the Tools tab and winetricks in the bottom bar.

Installing MelonLoader

Follow the same steps as on Linux.

You also need to make sure that the overrides are set in Steam launch options. Alternatively, you can set the overrides in your Wine prefix with winecfg, or click “Wine Configuration” in CrossOver and set the overrides in libraries. In Sikarugir use the winecfg in Configure.app and/or set the Unix Commands in the Configuration tab of Configure.app to export WINEDLLOVERRIDES="version=n,b".

Running Schedule I with MelonLoader

Run the game through Steam as usual. First startup after installing MelonLoader or after updating the game may take a bit longer.

Edit this page

Last updated 06 Jan 2026, 18:10 +0100 . history