

Needless to say it's smoke and mirrors, there's absolutely no significant difference between the two. The Source version of Half-Life 1 is, and I quote:Ī digitally remastered version of the critically acclaimed and best selling PC game

Marine, a security guard and two scientists (since Decay is a cooperative multiplayer game), respectively. The expansions and spin-offs for Half-Life 1 which were not developed by Valve are quite skippable Opposing Force, Blue Shift and Decay return to the setting and events of Half-Life 1, but portray the story through the eyes of a U.S.

The must-play Half-Life games are Half-Life 1, then Half-Life 2.
