Mod Engine 3 Manager

For Windows



For Linux




For Steam deck (Credit goes to ghostlyswat12 for creating this video.)

Why did I make this?

First: Special thanks to Gary Tierney for creating Mod Engine 3 — this project wouldn’t exist without it.
Installing and uninstalling mods for ME3 felt like a lot of work, such editing
profiles and managing mod folders. Hopefully, this tool will simplify
things by handling the hard parts.

Features

• Drag and drop mods
• Enable disable mods
• Edit the mod's configuration file directly within the application
• profiles managements 
• Embed me3 terminal
• Launch your game
• and more...
  

Usage

• Download the latest version of ME3 Manager.
  
  

Once the download is complete, launch:

• Me3_Manager.exe on Windows
• Me3_Manager on Linux
  

If Mod Engine 3 is already installed on your system, you can skip the installation step.



Windows




Linux




It is strongly recommended to download the Custom Portable installer for ME3. This custom Windows installer sets up ME3 and correctly adds it to the user path without depending on me3_installer.exe. If you prefer the official installer, make sure to download the Stable version.
For Linux: If the stable installation script does not successfully install ME3, you can try using the custom script.
This script was created to address some issues I encountered during the installation process on Linux.


For Windows (Official installer):
After clicking the Download button, you will be prompted to save me3_installer.exe
Save the file, then click Yes when prompted to run the installer.





The installer window will appear — simply click Next through the steps until the installation is complete.





For Windows (Custom Portable installer):
This custom Windows installer sets up ME3 and correctly adds it to the user path without depending on me3_installer.exe



After clicking "Yes," the setup for ME3 will begin, and it will be installed in AppData\Local\garyttierney\me3\bin.



For Linux:
After clicking the Download button, wait for the installation to complete.




From this point on, the process is the same whether you're using Windows or Linux.

Settings

For now, the only available settings are
“Auto-launch Steam silently on app startup”.
"Check for ME3 updates on app startup"

It’s recommended to enable this, as Mod Engine 3 requires Steam to be running.



Supported Games

Mod Engine 3 supports Elden Ring, Nightreign, Sekiro, and Armored Core 6 — and the manager fully supports all of them.
Within the app, you can customize the order of the games.



Manage Profiles

The manager also includes profile management, allowing you to switch between profiles, create new ones, and delete them as needed.



to to create new profile simply click on "Manage Profiles"



ADD New..



then either create or select a mods folder that will hold your mods and the profile data.



You can easily switch between profiles with just a click.

Additional features

1. Game Options

The Game Options window allows you to configure how ME3 launches and interacts with your game.
The "ME3 Configuration File" section displays the path to your configuration file (me3.toml). You can open the folder or browse manually if ME3 cannot detect it automatically.
The "Game Options" section includes two toggles. "Skip Logos" disables the game’s intro logos to speed up startup. "Boot Boost" enables faster startup by optimizing how the game is launched.
The "Custom Executable" section lets you manually set the path to your game’s executable. This is only needed if ME3 cannot detect your game installation automatically.



Example in how to use it:
Select the game excusable 




2. Open active mods folder.
It will open the mods folder in your file browser.


3. Add external mod (.dll) from any location
If you want to install a mod without moving it to the mod's folder, you can use this feature. I use it for
the Seamless Co-op mod because I
prefer to keep that mod in the game folder.


Example in how to use it:
select the .dll mod from external location







4. Edit/view .me3 file (not recommended to edit this file)
Edit/view .me3 file



Adding Mods

Adding mods is effortless — simply drag and drop them into the manager.



1. Adding .dll mod
For this example I'll use Storm Control mod



Simply drag both files into the app’s drop zone.





For DLL mods that has config files you can access the config file by clicking on "Edit mod configuration (.ini)"





If the manager cannot find the config file, simply browse for it manually — it will be saved for future use.

2. Adding package mod
For this example I'll use ELDEN VINS NIGHTREIGN mod




This mod comes with a .me3 profile and a mods folder.
You can drag both in, and the manager will handle it.

Not all mods include .me3 files, and that’s okay—the manager can still manage them.
Let’s assume this mod doesn’t have a .me3 file.
You can either drag all files that in mod folder at once, or just drag the mod folder.
Give it a name—and done!
However, if a mod does come with a .me3 file, I highly recommend dragging it in along with the mod folder.

Let me show you why.
When I first added this mod without the .me3
, the manager treated it as a single mod.
But after checking the .me3
file, it turns out it actually contains three mods:

• Seamless Co-op
• Nightreign FPS/FOV
• Elden Vins Nightreign
  

re-add it—with the .me3 file this time.



The manager asks whether to merge or replace—choose merge.
Give it a name... and done!



Now it properly detects all three mods.
It even found the DLL mods inside the mod folder!

Quick note though:
It skipped the nrsc.dll mod because the author referenced it in the .me3
file but didn’t actually include it in the package.




2. Adding regulation.bin mod

Some mods only contain a regulation.bin file.




Simply drag it into the app’s drop zone.



You will then be prompted to enter a name for the mod.







Just remember: only one regulation file can be active at a time.
You can't have multiple mods replacing it simultaneously.





Advanced options








Some advanced options are currently not working or are partially broken, such as the delay option.

Unclear: Does initializer.delay delay game startup or just mod initialization? #377

Each available option in the dialog includes a written explanation.




The manager includes an embedded terminal that displays ME3 output, making it easy to capture any errors.
Consider using this feature when reporting a bug or issue.

 



Special thanks to Katherinefrfr and Dieymir for their consistent feedback and issue reporting on Linux and Steam Deck, as well as to jn64 for their suggestions and efforts in improving the user experience.





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