Made by Gearbox Software and originally released in 2001 as an add-on to Half-Life, Blue Shift is a return to the Black Mesa Research Facility in which you play as Barney Calhoun, the security guard sidekick who helped Gordon out of so many sticky situations.
This expansion is good, but very, very short story. Okay in my opinion:
*Textures improved many much
*An escape story, nice though
*Witnessed Freeman at few places
*As I say, as escape story, so it's short...
*Lost many weapons such like: Crossbow, Gauss rifle, Gluon gun, and Hivehand
*No boss battle such like tentacle and gargantua
*Didn't engage Black ops?
*Scientists and Securities are almost useless in the game
That's why I give this game 8/10. Give it a 9 or 10 is too "unfair". Anyway, it's still okay though.