Half-Life: Blue Shift

Half-Life: Blue Shift is an expansion pack for Valve Corporation's science fiction game Half-Life. The game was developed by Gearbox Software with Valve and published by Sierra Entertainment on June 12, 2001. Blue Shift is the second expansion for Half-Life, intended to be part of a Dreamcast port of the original game. Although this version was cancelled, the PC version remained in development as a separate product. It was released on Steam on August 24, 2005.[1]
History

In August 2005, Valve announced the official launch of Blue-Shift on Steam, allowing users to register their serial numbers to purchase a game package. Half-Life: Blue Shift would not have been implemented on the system from the beginning because the game uses a different engine than the original Half-Life[citation needed]. Unlike Opposing Force, Blue Shift does not offer any multiplayer mode, and is also a standalone expansion, not requiring Half-Life.

In it, the player takes control of a Black Mesa security guard, Barney Calhoun. The enemies are the same as Half-Life, but the expansion has some different weapons. The game also has a shorter duration than the original. Barney goes through several points that connect Half-Life and its expansions, such as the moment when Gordon jumps into a portal to enter the planet Xen, or the various mysterious appearances of G-Man. Along with Blue-Shift, a pack of weapons and high-definition character models that modified its content was released, along with Half-Life and Half-Life: Opposing Force.