Schedule I Mod Manager (SIMM)

SIMM — Schedule I Mod Manager

The easiest way to install and manage mods for Schedule I.

App is currently in Beta, bugs may be present. Please report all bugs in the Bugs tab above or on Github Issues

Important notes when trying to download mods from NexusMods using this app

Due to Nexus Mods API Terms of Service, we are unable to provide direct downloads through the app for anyone other than Premium NexusMods users. All other user levels must use the Mod Manager Download (or Vortex) button while the app is open to download/install mods

This includes UPDATES

What is SIMM?

SIMM is a free desktop app for Windows that makes installing and managing mods for Schedule I easy — no command lines, no manual file juggling. Just a clean interface that handles everything for you.

It supports multiple game environments, so you can run different game versions or mod setups side by side without them interfering with each other.

Features

Getting Mods

• []Browse and install mods directly from Thunderstore and NexusMods inside the app[/]

  []One-click install — no need to manually copy files anywhere[/]

  Keeping Things Organized

  • []Shared mod library: download a mod once, deploy it to any of your game setups[/]

    []Automatic update checks for all your installed mods[/]

    Framework Setup (One Click)

    • []Install MelonLoader, S1API, and MLVScan straight from within SIMM[/]

      []Automatically picks the right version for your current game build[/]

      Multiple Game Environments

      • []Manage separate setups for different game branches or versions[/]

        []Import your existing Steam install, or let SIMM download a fresh copy for you[/]

        Extra Tools

        • []View and filter your MelonLoader logs inside the app — no more hunting through folders[/]

          []Edit MelonLoader configuration settings with a clean, easy-to-use interface[/]

          []See your current game version at a glance[/]

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          Steam Integration & Security

          SIMM can download a fresh copy of Schedule I on your behalf using DepotDownloader — a widely used, open-source Steam content downloader. He