steamcmd

Install command: 
brew install --cask steamcmd

Name: SteamCMD

Command-line client for Steam

https://developer.valvesoftware.com/wiki/SteamCMD

Development: Pull requests

Cask JSON API: /api/cask/steamcmd.json

Cask code: steamcmd.rb on GitHub

Current version: 1781219792

Requirements: macOS

Analytics:

Installs (30 days)
steamcmd 607
Installs (90 days)
steamcmd 1,602
Installs (365 days)
steamcmd 4,580