How to block Steam from the Internet on Mac OS X

Blocking Steam with the Radio Silence firewall is just as easy as blocking any other app.

Remember that Radio Silence comes with a free trial and has a 30-day money-back-guarantee, no questions asked.

  1. Open Radio Silence. You can do it from your /Applications folder or using Spotlight. Launch Radio Silence with Spotlight
  2. Click the "Add Application…" button. Add an application to Radio Silence
  3. Select Steam. You can find it in /Applications/Steam.app.
  4. Done! You can now close Radio Silence. The firewall stays active, even after you close the Radio Silence app window.

→ Try Radio Silence