Setup Guide

    Last updated: June 12, 2026

    Lua Files Documentation

    Learn how to set up core files and lua files to Add games to your library.

    ManifestDeX Desktop App

    The desktop app is released! Download it now to make this process much easier, more details here!

    Video Tutorials

    Watch these step-by-step video guides to quickly learn how to use the desktop app or integrate manually.

    mx_desktop_tutorial.mp4
    1

    Download Core DLLs

    Download the three required integration DLLs from the backend server.

    Important: All 3 DLLs are core and required. Lua files and Steam integration will not function without them.

    Recommended: Download All

    Get all three required DLLs bundled together in a single ZIP file.

    Download ZIP
    or

    Download Individually

    Download files separately if you only need specific updates.

    xinput1_4.dll
    sha256: ddb1f0909c7092f06890674f90b5d4f1198724b05b4bf1e656b4063897340243
    dwmapi.dll
    sha256: 1ce49ed63af004ad37a4d2921a5659a17001c4c0026d6245fcc0d543e9c265d0
    manifestdexcore.dll
    sha256: ceedb807e8a2e3d4a4020ecf1d52f16d6ac427f4359e4ad1431be716d2b51f58
    2

    Install Core DLLs

    Place all three downloaded DLLs in your Steam installation directory.

    Copy the xinput1_4.dll, dwmapi.dll, and manifestdexcore.dll files to your Steam base directory:

    C:\Program Files (x86)\Steam

    Note: Your Steam installation path may differ. Check your Steam settings if unsure.

    3

    Install Lua Files

    Place your lua files in the stplug-in directory.

    Place your downloaded .lua files in the following directory:

    C:\Program Files (x86)\Steam\config\stplug-in

    Note: If the stplug-in folder doesn't exist, create it manually inside the config folder.

    4

    Restart Steam

    Restart Steam to apply the changes.

    After placing all files in their correct locations:

    1. Close Steam completely (check system tray)
    2. Wait a few seconds
    3. Launch Steam again

    Done! Your lua files should now be active and working with Steam.

    ManifestDeX Desktop App

    The desktop app is released! Download it now to make this process much easier, more details here!