Half-Life: Source

Half-Life:Source is an import of the original Half-Life game, utilizing the Half-Life 2 engine, that was included in the collector's edition of Half-Life 2. There weren't as many graphical alterations as were expected, just the engine. Other additions to the game include the ability to jump to any chapter right away, not having to play through the whole game; and active menu interfaces featuring actual game locations with characters walking around.