SEGS  0.6.1-develop [d2cac982]
Super Entity Game Server



SEGS is the Super Entity Game Server. It is a free, open source (under the terms of the BSD License), cross-platform, and object-oriented suite of protocols and services designed to interface with popular super hero themed MMORPG clients. SEGS is written in C++ and facilitates common MMORPG functionality such as account and character storage to a database, account and character retrieval from a database, secure client authentication, client movement in a virtual world, and client chat.

For legal information, please see

For a list of SEGS authors and contributors, please see


SEGS requires:

For more detailed version of this guide or for help, visit our discord or forums by using the links below:

To report any bugs, please visit our GitHub:

Note that all directories mentioned in this document are always relative to the directory of your SEGS installation, and commands are meant to be run from this directory.


  1. Install CoX Client version 0.22

    SEGS will only communicate with the CoH client from Issue 0 (version 0.22). This can be found through various sources online, or via the following magnet link provided the City of Heroes community:


After the download completes, navigate to the download folder and run CoX-Setup.exe. Follow the prompts to install the Issue 0 CoX client.

  1. Point the CoX client towards your server IP

    In your CoX Client folder, locate and run CoX-Auth.exe to set the IP address to that of your server. If running your server locally this CANNOT be (localhost) and must point to your actual IP address on the network.

For Windows users, a guide to determining your IP can be found here:

ADVANCED: run cmd and type ipconfig. Your IP will probably start with or 10.0.xx.xx

If you have trouble running Cox-Auth.exe then you can do this step manually by opening regedit, and creating the registry key "Computer\HKEY_CURRENT_USER\Software\Cryptic\Segs" then create a string called "Auth" with the value as your server IP.

  1. How to correctly run the CoX Client?

    The CoX Client must be run with a special command line argument telling the client that it's not connecting to the official game servers. Create a shortcut to CoX.exe and place it on your desktop. Right click the link to access its properties, and in the Target: field, add the following to the end of the line: -project SEGS.

Your line should end something like this: .../CoX.exe" -project SEGS.

Please note the space between the quotation mark and the dash.

If you would like to run the client in windowed mode, you may also add these optional command line arguments: -fullscreen 0 -screen 1024 768.

When you want to launch the client, you will need to use this shortcut.


This is a simple installation guide for those looking to get up and running with SEGS as quickly as possible. It assumes that you will download the latest release package from and assumes a basic knowledge of computers and computer idioms.

If you're looking to compile SEGS from source, or need to do an advanced manual setup (NOT RECOMMENDED) then please visit our GitHub

  1. Download and extract SEGS from a stable release.

    You can obtain the latest stable SEGS release from

    Files are available in .tar.gz and .zip formats and can be extracted using most common compression tools.

    Extract the release files to a local directory on your machine. For Windows users it is recommended to extract SEGS to your C:\ to ensure that SEGS has all the permissions it needs to properly run.

    Once extracted, you will have a new directory SEGS containing all SEGS files and subdirectories.

  2. Run SEGSAdmin

    In your SEGS folder locate and run SEGSAdmin. This is the central setup and administration tool for SEGS. From this tool, you can install and configure SEGS, and start or stop your server.

  3. Server Setup

    In the SEGSAdmin window, there is a section titled Server Setup.

    To setup your copy of SEGS click each of the following buttons and follow the on screen instructions. If setup is successful, a green checkmark will appear next to the button.

    1. Generate Config File

      Clicking this button will open a dialog box to configure the settings.cfg file SEGS needs to run. It will ask you to enter a name for your server and the IP address of your computer.

      > This will be the same IP you used during Section 2 of 'Configure The COX Client'

      Next to the IP address field, clicking a small button with a magnifying glass will look up your computer's IP address.

    2. Create New Databases

      Clicking this button will create the segs and segs_game SQL database files that SEGS needs to run. It will also ask you to enter a username and password for your Admin account.

    3. Setup CoH Data Files

      SEGS requires several CoH files to run. Clicking this button will prompt you to enter the path to your CoX directory. Once selected, it will copy several files from the CoX directory, and extract a portion of those files to your SEGS/data/ subdirectory. These .bin files are required by SEGS to load CoX maps, and spawn NPCs. Once completed, SEGSAdmin will clean up any unnecessary files.

Ensure proper ports are open on any firewalls Make sure the following Network Ports are open: TCP 443, TCP 2104, TCP 2016, and UDP 7000-7200 These are the same ports that the original game client and now, SEGS uses as well.

  1. **(Optional) Add User Account**

    Optionally, you may elect to add additional user accounts by clicking this button on the left side of the SEGSAdmin window. SEGSAdmin will prompt you to enter a username, password, and access level for each account. A user's access level is used to determine their permissions within your server. Please reference this chart:

Access Level Permissions
0 basic user with no special authority
1 game master, has limited authority
2-8 reserved for future use
9 administrator with full access


At this point you're ready to start the server by clicking the Start Server button in SEGSAdmin. Once running, start the CoX client using the shortcut we set up earlier and log in using your username and password.



Make sure the following Network Ports are open: TCP 443, TCP 2104, TCP 2016, and UDP 7000-7200

For Help with installation and configuration of your local SEGS, please see visit us on discord at


Visit our FAQ at