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Half-Life: Source is a port of Valve's original acclaimed game Half-Life to their new Source engine used for Half-Life 2 . It was initially only available in the Silver and Gold Edition Steam packages when buying Half-Life 2, and in the Collector's Edition retail disc package. Later, it could be bought separately through Valve's Steam game delivery system.

It takes advantage of vertex and pixel shaders to create realistic water effects, and can now portray realistic physics effects. It also has new menus, improved lighting and soft shadows, ragdoll character animations, and a 3D skybox replacing the old 16-bit color prerendered bitmap skies.


Half-Life: Source Windows The high definition pack is now officially available (check video options).
Half-Life: Source Windows Color-coded stripes direct you to various places within the Facility.
Half-Life: Source Windows The experiment failed! It becomes a foreboding example of Science gone horribly wrong, an omen of the destruction to come!
Half-Life: Source Windows The updated version of the game supports widescreen, controllers and more. 
Here Barney is showing one of the new features (projected shadows).

Promo Images

Half-Life: Source Screenshot
Half-Life: Source Screenshot
Half-Life: Source Screenshot
Half-Life: Source Screenshot

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German version

There are a number of changes in the German version:
  • All human enemies were replaced with robots
  • Except for exploding monsters, all blood and gore effects were removed
  • Killed enemies/persons disappear instantly
A detailed list of all changes can be found on (German)
Contributed to by Alsy (18006) and Scaryfun (17557)