Dedicated server guide

Killing Floor 2

Manage kf2server with AlphaGSM. Choose a runtime supported by the recorded module capabilities.

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

Build setup commands

Runtime familysteamcmd-linux

Declared runtimes: Docker or a Linux host process.

Network bindings

Default game port: 7777. Protocols and additional port values are unknown; review the game guide.

Mods and plugins

For Workshop content, use the setup builder with an actual game-compatible item ID; review supported content types in the guide.

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-kf2server create kf2server
Complete interactive setup ./alphagsm-docker my-kf2server setup
Start the game server ./alphagsm-docker my-kf2server start
Check the instance status ./alphagsm-docker my-kf2server status

./alphagsm-docker start
./alphagsm-docker my-kf2server create kf2server
./alphagsm-docker my-kf2server setup
./alphagsm-docker my-kf2server start
./alphagsm-docker my-kf2server 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-kf2server create kf2server
Complete interactive setup ./alphagsm my-kf2server setup
Check the host prerequisites ./alphagsm my-kf2server doctor
Start the game server ./alphagsm my-kf2server start
Check the instance status ./alphagsm my-kf2server status

./alphagsm my-kf2server create kf2server
./alphagsm my-kf2server setup
./alphagsm my-kf2server doctor
./alphagsm my-kf2server start
./alphagsm my-kf2server status

This guide covers the kf2server module in AlphaGSM.

kf2server is currently PASSED on the documented Ubuntu 24.04 Linux baseline. The current GitHub integration lane still exercises both process and Docker runtime selection, and the validated Linux lifecycle stays aligned across both backends while local runs remain process-backed by default unless you opt into the Docker backend.

Requirements

screen
SteamCMD runtime libraries (lib32gcc-s1, lib32stdc++6)
Python packages from requirements.txt

Quick Start

Create the server:

alphagsm mykf2serve create kf2server

Run setup:

alphagsm mykf2serve setup

Start it:

alphagsm mykf2serve start

Check it:

alphagsm mykf2serve status

Stop it:

alphagsm mykf2serve stop

Setup Details

Setup configures:

the game port (default 7777)
the install directory
SteamCMD downloads the server files

Useful Commands

alphagsm mykf2serve update
alphagsm mykf2serve backup

Notes

Module name: kf2server
Default port: 7777
Default Steam query port: 27015
query and info use the configured A2S query port. Docker publishes this UDP listener separately from the gameplay port.
The native Steam UDP listener uses the game port plus 12783; AlphaGSM claims and publishes this port too.

Workshop content

The native Workshop adapter accepts a public item or collection ID or Steam Community URL, checks that it belongs to Killing Floor 2 (AppID 232090), and manages native server subscriptions and client downloads:

alphagsm mykf2serve stop
alphagsm mykf2serve mod add workshop https://steamcommunity.com/sharedfiles/filedetails/?id=1208883070
alphagsm mykf2serve mod apply
alphagsm mykf2serve start

Start on the stock map first so the engine can download Workshop maps. Once a map exists in the native cache, stop the server and select it with set startmap MAP_NAME. The adapter uses KFGame/Config/LinuxServer-KFEngine.ini on Linux and PCServer-KFEngine.ini on Windows. It preserves operator subscriptions and unrelated settings, and refuses config changes while the server runs. mod cleanup removes AlphaGSM's subscriptions and download-manager entry; engine-generated cache files remain available on disk.

The public KF-Corridor fixture (1208883070) passed anonymous SteamCMD access and the Linux engine's own Workshop download on 2026-10-13. The stock-map AlphaGSM process run answered real A2S with KF-BIOTICSLAB and six slots. Custom-map world loading and the complete Workshop smoke/integration lifecycle are still pending; Workshop Docker validation is also pending.

Server variables

After create kf2server, inspect or change these with set:

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

Key	Aliases	Type	What it does
`configsubdir`	—	string	Relative config directory.
`dir`	—	string	Install directory for the server.
`exe_name`	—	string	Server executable filename.
`gametype`	—	string	Game mode class to start.
`port`	gameport	integer	Primary gameplay port.
`queryport`	—	integer	Steam query port.
`startmap`	map, gamemap, level, world	string	Starting map name.

Developer Notes

Run File

Executable: Binaries/Win64/KFGameSteamServer.bin.x86_64
Location: <install_dir>/Binaries/Win64/KFGameSteamServer.bin.x86_64
Engine: Custom (SteamCMD)
SteamCMD App ID: 232130

Server Configuration

Config file: See game module source
Template: See server-templates/kf2server/ if available

Maps and Mods

Map directory: Check game documentation
Mod directory: Check game documentation
Workshop support: Native subscription adapter; complete native load validation pending.

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 Killing Floor 2?

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

Which runtimes can run Killing Floor 2?

Declared runtimes: Docker or a Linux host process.

Which ports does Killing Floor 2 use?

Default game port: 7777. Protocols and additional port values are unknown; review the game guide.

Can I add mods to Killing Floor 2?

For Workshop content, use the setup builder with an actual game-compatible item ID; review supported content types in the guide.

How should I back up Killing Floor 2?

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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