Dedicated server guide

Unreal Tournament 3

Manage ut3server with AlphaGSM. Choose a runtime supported by the recorded module capabilities.

Operator-provided prerequisites required · Support evidence: 2026-10-16.

Runtime familysteamcmd-linux

Declared runtimes: Docker or a Linux host process.

Network bindings

7777/UDP, 7777/TCP, queryport/UDP, queryport/TCP. Named port values remain unknown; review the game guide and configuration for additional requirements.

Mods and plugins

No mod support is declared in this snapshot; review the game guide before adding mods.

Backup hook

A module-specific backup hook is declared. Review the game guide for its scope, restore procedure and shutdown requirements.

Choose a supported runtime

Linux and Docker quickstart

Operator-provided game files, runtime or other prerequisites are required; follow the game guide before setup.

Docker

Complete interactive setup and review game-specific configuration before starting the server. Operator-provided game files, runtime or other prerequisites are required; follow the game guide before setup.

Start the Docker manager ./alphagsm-docker start
Create the game instance ./alphagsm-docker my-ut3server create ut3server
Complete interactive setup ./alphagsm-docker my-ut3server setup
Start the game server ./alphagsm-docker my-ut3server start
Check the instance status ./alphagsm-docker my-ut3server status

./alphagsm-docker start
./alphagsm-docker my-ut3server create ut3server
./alphagsm-docker my-ut3server setup
./alphagsm-docker my-ut3server start
./alphagsm-docker my-ut3server status

Host process

Create the game instance ./alphagsm my-ut3server create ut3server
Complete interactive setup ./alphagsm my-ut3server setup
Check the host prerequisites ./alphagsm my-ut3server doctor
Start the game server ./alphagsm my-ut3server start
Check the instance status ./alphagsm my-ut3server status

./alphagsm my-ut3server create ut3server
./alphagsm my-ut3server setup
./alphagsm my-ut3server doctor
./alphagsm my-ut3server start
./alphagsm my-ut3server status

This guide covers the ut3server module in AlphaGSM.

ut3server is currently ENABLED (BYO) on the documented Ubuntu 24.04 Linux baseline. The current GitHub integration lane still exercises both process and Docker runtime selection around that owned-dedicated-tree prerequisite, while local runs remain process-backed by default unless you opt into the Docker backend.

Requirements

screen
an owned Unreal Tournament 3 dedicated-server tree
optional OpenSpy credentials if you want the server to authenticate and advertise

Quick Start

alphagsm myut3 create ut3server
alphagsm myut3 setup
alphagsm myut3 start
alphagsm myut3 status
alphagsm myut3 stop

ut3server is supported in ENABLED (BYO) mode. Before setup or start, copy an owned UT3 dedicated server tree into your chosen <install_dir>/ so <install_dir>/Binaries/ut3 exists. If you want authenticated public advertising, set gsusername and gspassword with your OpenSpy credentials before starting the server.

Suggested flow:

alphagsm myut3 create ut3server
alphagsm myut3 setup -n 7777 /path/to/ut3server
## copy the owned UT3 dedicated server files into /path/to/ut3server/
alphagsm myut3 set gsusername myopenspyuser
alphagsm myut3 set gspassword myopenspypassword
alphagsm myut3 start

Notes

Module name: ut3server
Install mode: ENABLED (BYO) server files
Default port: 7777
Default query port: 6500
Query/info protocol: ut3 (Unreal3/GameSpy4 reachability probe)

Server variables

After create ut3server, inspect or change these with set:

alphagsm myserver set --list
alphagsm myserver set KEY --describe
alphagsm myserver set KEY VALUE

This module does not declare schema-backed keys. set --list after create is still the live source of truth.

Developer Notes

AlphaGSM expects the server executable at Binaries/ut3 relative to the install root.
The start surface follows LinuxGSM's UT3 launch pattern, including ConfigSubDir=<server-name>, -queryport, -nohomedir, and -unattended.
The active config path defaults to UTGame/Config/<server-name>/UTGame.ini.
Automated install is not provided because LinuxGSM does not expose a concrete upstream download path for UT3; this module manages user-provided files instead.

BYO file helper

Inspect this game's required files, source instructions and destinations with alphagsm <server-name> assets requirements; check the declared files with alphagsm <server-name> assets check. File checks do not establish game readiness. This helper checks known sentinels only and directs you to stage the complete compatible distribution manually; managed import is unavailable for this recipe. See BYO files and private SteamCMD acquisition.

Share your server

Sector Alpha server directory

When your server is ready, you can publish its connection details and community information on Sector Alpha. Review your listing and keep the information current.

Find a community

Browse the directory for game servers and their published connection details.

Browse server directory

Publish your server

Prepare a name, address and description for your listing.

Publish a server

Manual server sharing instructions

Frequently asked questions

What support evidence is recorded for Unreal Tournament 3?

Operator-provided prerequisites required. Operator-provided game files, runtime or other prerequisites are required; follow the game guide before setup.

Which runtimes can run Unreal Tournament 3?

Declared runtimes: Docker or a Linux host process.

Which ports does Unreal Tournament 3 use?

7777/UDP, 7777/TCP, queryport/UDP, queryport/TCP. Named port values remain unknown; review the game guide and configuration for additional requirements.

Can I add mods to Unreal Tournament 3?

No mod support is declared in this snapshot; review the game guide before adding mods.

How should I back up Unreal Tournament 3?

A module-specific backup hook is declared. Review the game guide for its scope, restore procedure and shutdown requirements.

Source and support evidence

This guide mirrors AlphaGSM’s upstream documentation at 32cef5ba9e03053c8e461fffa0ba133b160b528d. Commands and prerequisites can change. Check current support notes before installation.

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