How to Run Multiple Instances (accounts) of The Isle on One PC (WORKS 2025)

How to Run Multiple Instances (accounts) of The Isle on One PC

Step by step Guide

Tired of getting raided by clans with little children that have 20 accounts each? Well become one yourself, just simply follow this guide!

How to Run Multiple Instances of The Isle on One PC

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Step 1: Downgrade Steam

1. Right-click on your Steam shortcut and select Properties.
2. In the Target field, add the following after the existing text (including the quotes):

-forcesteamupdate -forcepackagedownload -overridepackageurl http://web.archive.org/web/20240918110225if_/media.steampowered.com/client -exitsteam

Example of how it should look like:

"C:\Program Files (x86)\Steam\steam.exe" -forcesteamupdate -forcepackagedownload -overridepackageurl 
http://web.archive.org/web/20240918110225if_/media.steampowered.com/client -exitsteam

3. Click Apply, then launch Steam. It will downgrade to an older version.
4. After the update is complete, do not open steam, close Steam.
5. Go back to the shortcut properties and remove the text you added earlier.
6. Navigate to your Steam installation folder (usually C:\Program Files (x86)\Steam).
7. Create a new file named Steam.cfg.

Make sure to save it as a .cfg file and not as a .txt file.
In Notepad, choose "All Files" in the save dialog and name it Steam.cfg.
8. Open the file in Notepad and paste the following:

BootStrapperInhibitAll=enable
BootStrapperForceSelfUpdate=disable

9. Save and close the file.
This will prevent Steam from updating automatically. So when you want to update steam in the future you gotta delete the CFG file.

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Step 2: Launch Multiple Steam Accounts

1. Open Command Prompt:

Press Win + R, type cmd, and press Enter.
2. Type the following command to set up a multi-instance environment:

set VPROJECT=steammulti

3. Completely close down Steam before typing this command. Launch your primary Steam account by typing:

start "Steam1" "C:\Program Files (x86)\Steam\steam.exe" -master_ipc_name_override steam1

4. Launch your secondary Steam account:

start "Steam2" "C:\Program Files (x86)\Steam\steam.exe" -master_ipc_name_override steam2 -userchooser

5. Launch a third account (if needed):

start "Steam3" "C:\Program Files (x86)\Steam\steam.exe" -master_ipc_name_override steam3 -userchooser

6. Launch a fourth account (if needed):

start "Steam4" "C:\Program Files (x86)\Steam\steam.exe" -master_ipc_name_override steam4 -userchooser

Repeat this for additional accounts, incrementing steamX in the commands to steam5, steam6, etc., as needed.

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You’re Ready to Play!

Now you can run multiple instances of The Isle on the same computer using separate Steam accounts.

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