Half-Life 2: Demo
From Valve Developer Community
| This demo for Half-Life 2 is available for play.|
Enter steam://run/219 in your address bar to play.
You can also enter steam://install/219 or visit the store to install this game.
Half-Life 2: Demo is the demo version of Half-Life 2. The demo consists of excrepts of the Point Insertion and Ravenholm chapters.
Note:If you already own the game, you can't install or play the demo.