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.

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Welcome to our first media update this year!

Read Full Article.

Multiplayer Beta Release Q1 2014 Cancelled

Our plan to bring you the multiplayer beta of Operation Black Mesa early this year didn't work out, regrettably. Several factors and circumstances forced us to completely keep it under the hood until further notice.

Multiplayer Progress

Multiplayer will feature classic maps such as Yard, Crossfire and Boot Camp as well as brand-new ones like Deptcharge and Gambit from day 1.
Currently in development: CTF mode and weapon placement.


Singleplayer Campaign

Development is running smoothly; those NPCs aren't going to animate themselves though! If you're interested in joining our team, check out the jobs page where you can find all positions currently open. We look forward to welcoming you on board!

Pit Worm's Nest

Remember Guard Duty (Blue Shift: Source)? We're making solid progress here too:

Living Quarters Outbound

OBM: The Video Game?

We've been given the option of developing our projects as full indie titles to be sold on Steam!
This opens up a whole lot of attractive possibilities to consider; however no decision has been reached yet as to this matter.

Alien Controller

M1A1 Tank

Thanks for your support in making all of this possible!

Until next time,
Tripmine Dev Team

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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...
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A reskin made in a day to turn barney into kate(A custom female barney model wich game with sven coop)updates on the weakends.

Post comment Comments  (0 - 10 of 29)
hafidin Jan 25 2015 says:

how to download blue shift without mod ?

+1 vote     reply to comment
FLOPMAN Jul 15 2013 says:

i bought the game in the store but won multyplayer wont work help plzz!

+1 vote     reply to comment
PMDLEADERSHINX Aug 30 2015 replied:

Multiplayer is only possible with Blue-Shift Unlocked and Blue-Shift CoOp installed. Made as a stand alone game, it does not working like the other games.

+1 vote     reply to comment
Guest May 23 2013 says:

This comment is currently awaiting admin approval, join now to view.

wawa26 Jul 30 2012 says:

Now i remember play this game on my Pentium III PC.

+2 votes     reply to comment
emrebil Jul 29 2012 says:

I need blue shift v1.0.0.1 patch for open my custom maps with blue shift but i can't open this patch. Can anyone send me files in this patch?

+3 votes     reply to comment
Garyn Dakari Oct 1 2011 says:

Just finished HL1, HL:OF, and HL:BS.

HL was near perfect in my mind, 10/10 all the way.

OF added some fun new weapons and gameplay mechanics, but almost nothing to the story. And the main character and villain just seemed to be copies of the ones from HL. I liked that one boss fight though, where you had to turn on the Gearbox, activate the Steam vents, and turn the Valve to kill the beast :P 8/10

BS didn't add any new gameplay or weapons, which was slightly annoying, but it made sense. It cleared up a few things about the story which was good, and the Gordan cameos were pretty funny. It was also really short and REALLY easy. I didn't ever die against an enemy in the whole game, and it only took 2 hours to play. And, without spoiling anything, I thought the ending was kinda lame. I'd give it a 7/10

All in all, I loved HL, and liked the expansions. I'll call HL a "Must play" and recommend the expansions if you like HL.

Haven't played HL2 yet, so no rating on that ;)

+4 votes     reply to comment
djwizzle9001 Jun 23 2012 replied:

PLAY HL2 (if you havent already)

+3 votes     reply to comment
deadlife101 May 3 2012 replied:

Now all you need to do is play the last gearbox expansion, which is the hardest one, HL: Decay.

+3 votes     reply to comment
Highmist Jan 2 2012 replied:

yea, the Blue shift ending was kind of dull. I have yet to beat OF, because i got stuck in an area with absolutely no HP D:

+3 votes     reply to comment
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Half-Life: Blue Shift
Windows, DC
Gearbox Software
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Release Date
Released 2001
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129 votes submitted.

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Highest Rated (5 agree) 10/10

If you say this game sucks you can go die in h3ll.

Apr 12 2012 by The_Nephillium

First Person Shooter
Single Player
Half-Life: Opposing Force
Half-Life: Opposing Force First Person Shooter
Half-Life: Decay
Half-Life: Decay First Person Shooter
Required to play
Half-Life First Person Shooter
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3 months ago
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