Unreal Tournament 2004

Instructions for connecting UT2004 to the 333networks masterserver.

Configuration file location

UT2004 stores the configuration file on the following location:


If that folder/file does not exist, click here for more information on known configuration locations. Once you located the configuration file, proceed with the instructions below.

For everybody who wants to play UT2004 online.

Game Client Configuration

Before making changes to your configuration, make sure to shut down your game. Once you have located the configuration file, open it with a text editor of choice and find the [IpDrv.MasterServerLink] section. In this section, you replace the old Epic Games entry (red) with two of the 333networks-affiliated masterserver entries (green):


Remove the line containing ut2004master.epicgames.com. Epic Games ceased their services in 2023 and the domain no longer resolves to a masterserver.

Insert entries for 333networks and errorist (green).

Note that UT2004 only uses one of these entries at will. 333networks and errorist synchronise their entries so you always receive all servers.

Restart your game client. The first time that you restart the game client, close and re-open your configuration file to see if the changes persisted.

ut2004-ubrowser.jpgThe multiplayer game browser showing our 333networks Message Of The Day. Success!

(!) Always type the configuration changes manually and check for mistakes.

Congratulations! You're all set up now! If this does not work for you, please visit our discord server, where we will try to help you set up the game properly.