Dedicated server guide

Just Cause 2 Multiplayer

Manage jc2server with AlphaGSM. Choose a runtime supported by the recorded module capabilities.

Recorded lifecycle pass · Support evidence: 2026-10-16.

Runtime familysteamcmd-linux

Declared runtimes: Docker or a Linux host process.

Network bindings

7777/UDP, 7777/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

Review the game guide for installation, account, licensing and runtime prerequisites before setup.

Docker

Complete interactive setup and review game-specific configuration before starting the server. Review the game guide for installation, account, licensing and runtime prerequisites before setup.

Start the Docker manager ./alphagsm-docker start
Create the game instance ./alphagsm-docker my-jc2server create jc2server
Complete interactive setup ./alphagsm-docker my-jc2server setup
Start the game server ./alphagsm-docker my-jc2server start
Check the instance status ./alphagsm-docker my-jc2server status

./alphagsm-docker start
./alphagsm-docker my-jc2server create jc2server
./alphagsm-docker my-jc2server setup
./alphagsm-docker my-jc2server start
./alphagsm-docker my-jc2server status

Host process

Complete interactive setup and review game-specific configuration before starting the server. Review the game guide for installation, account, licensing and runtime prerequisites before setup.

Create the game instance ./alphagsm my-jc2server create jc2server
Complete interactive setup ./alphagsm my-jc2server setup
Check the host prerequisites ./alphagsm my-jc2server doctor
Start the game server ./alphagsm my-jc2server start
Check the instance status ./alphagsm my-jc2server status

./alphagsm my-jc2server create jc2server
./alphagsm my-jc2server setup
./alphagsm my-jc2server doctor
./alphagsm my-jc2server start
./alphagsm my-jc2server status

This guide covers the jc2server module in AlphaGSM.

Status: supported on Linux. The validated branch path uses AlphaGSM's shared steamcmd-linux Docker runtime with the native Linux dedicated server from Steam app 261140. GitHub keeps one Docker-default lifecycle because the forced process lane did not expose the managed TCP health surface.

Quick Start

Create the server:

alphagsm myjc2server create jc2server

Run setup:

alphagsm myjc2server setup

Start it:

alphagsm myjc2server start

Check it:

alphagsm myjc2server status
alphagsm myjc2server query
alphagsm myjc2server info --json

Stop it:

alphagsm myjc2server stop

Setup Details

Setup configures:

the main game port, default 7777
the install directory
anonymous SteamCMD download of the dedicated server files

AlphaGSM also keeps the native config.lua in sync before start, copying the shipped default_config.lua when the install is first staged.

Runtime Notes

Module name: jc2server
Default executable: Jcmp-Server
Config file: <install_dir>/config.lua
SteamCMD App ID: 261140
Default runtime family: steamcmd-linux

AlphaGSM also stages the shipped default_scripts/ tree into scripts/ without overwriting user-provided scripts, so a fresh install has the stock server logic available immediately.

Health Contract

The validated AlphaGSM health surface is generic tcp on the managed main game port.

Useful Commands

alphagsm myjc2server update
alphagsm myjc2server backup

Server variables

After create jc2server, 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.

Configuration templates

Reference files from this source revision. Review paths, passwords and game-specific settings before use.

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 Just Cause 2 Multiplayer?

Recorded lifecycle pass. Review the game guide for installation, account, licensing and runtime prerequisites before setup.

Which runtimes can run Just Cause 2 Multiplayer?

Declared runtimes: Docker or a Linux host process.

Which ports does Just Cause 2 Multiplayer use?

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

Can I add mods to Just Cause 2 Multiplayer?

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

How should I back up Just Cause 2 Multiplayer?

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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