Download link.
Gameplay Videos.
How To Install - Delete old version and then install this version.
Download "Half-Life Source.rar" archive in provided above link.
Once it is finished downloading, open this "Half-Life Source.rar" archive with WinRAR program.
You will see here 2 folders - "C++" and "Game".
If you would like just to play the game then you need double left-click on "Game" folder.
You will see here folder, called "Half-Life Source".
Extract it, for example, to your Desktop.
Go to extracted to your Desktop "Half-Life Source" folder.
You will see here executable file, called "Half-Life Source.exe".
Double left-click on it.
Play.
