Left 4 Dead 2 Steam Workshop Updater Tool

A python script to automatically download and install Left 4 Dead 2 workshop addons for dedicated servers.

The script uses the Steam web API to fetch the last updated timestamp of each addon. This is then compared to a saved timestamp if available.

Features

Automatic download and install
Only downloads new or updated addons

Parameters

--check-addons Checks for extra and missing addons. Missing addons will be downloaded and extras will be logged but not deleted.
--validate Compares the file size of each addon with the file size reported by Steam. If they differ, the addon will be downloaded again.

Requirements

Python 3.11
Python libraries:
- requests
- json
- os
- logging
- time
- subprocess
- shutil
- datetime
- shlex
- argparse
Steam web API key.
Steam account with Steam guard disabled.
SteamCMD

Usage

Open workshop_updater.py and edit the Tool Settings as needed.

Then run python.

Limitations

The tool currently doesn't check if a download has failed.

Run the tool with --check-addons to check for extra and missing addons. Missing addons will be downloaded automatically. Extras will be logged but not deleted.