Hidden Half-Life game on Steam.
How to Activate This Game
- First you have to use the Windows+R keyboard combination that will open up the Run search menu.
- Then after the menu appears you have to type this command: steam://install/92
- After you typed this command you press the OK button.
- The game install tab will appear you press the Next button.
If you followed the steps then you can play with this little hidden game called: Codename Gordon!