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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

Operation: Thank You

Operation: Thank You

1 year ago News 10 comments

Thanks to everyone who supported us in year's MOTY competition!

Operation Black Mesa has been greenlit!

Operation Black Mesa has been greenlit!

2 years ago News 33 comments

Opposing force remake for Source engine has been greenlit!

Progress update

Progress update

2 years ago News 15 comments

What's new about Operation Black Mesa and Guard Duty? Both mods will release on MAC and Linux, and first multiplayer beta is releasing in Q1 2014.

Operation Black Mesa DEV.BLOG: Advanced AI

Operation Black Mesa DEV.BLOG: Advanced AI

2 years ago News 52 comments

Our team proudly presents our new AI system we implement for our NPCs. Check out this dev.blog for more information and a video.

RSS feed Downloads
Operation Black Mesa soundtrack

Operation Black Mesa soundtrack

5 years ago Audio 27 comments

This is our current soundtrack. It may or may not change in the future. "Oslo by night" by xhale. "Hundred Miles" by alexey v. "Weird view" by alexey...

Post comment Comments  (2270 - 2280 of 3,501)
xenobi Sep 11 2010 says:

i have a small suggestion, how about adding hazard suit zombies in xen, since you guys have added scientists wearing vests and carrying weapons i guess it will be a cool addition.

i have made a rough concept art of the same

they'll be hard to kill cause of the suit.


+2 votes     reply to comment
EliteAssassin Sep 11 2010 replied:

Thats actually quite a good idea. Maybe add a smashed helmet to the head as well.

+2 votes     reply to comment
xenobi Sep 11 2010 says:

the work is just awesome! the weapon animations look so kick *** and so do the monsters!!

+1 vote     reply to comment
UrbanKid Online
UrbanKid Sep 10 2010 says:

Awesome partical effect!

+2 votes     reply to comment
Kris015 Sep 9 2010 says:

I haven't been wow'ed in a long time and i rarely do, but this really deserves it!

WOW.. Just.. Wow.. This can't die. I'm almost willing to pay for this to get finished faster.

+5 votes     reply to comment
xenobi Sep 11 2010 replied:

and they seem to be working fast

+1 vote     reply to comment
nrd2001 Sep 9 2010 replied:

what a coincidence im willing to accept money to make it release faster.

Seriously though we are all working on it as fast as we can but we could do with some more help so please check out the jobs page if you think you can help.

+3 votes     reply to comment
UnknownMerc Sep 9 2010 says:

wow im waiting this and the black mesa source like crazy!!!
btw is there a blue shift remake?

+2 votes     reply to comment
ArturoPahua Sep 9 2010 replied:

Yes Sir, Guard Duty


+2 votes     reply to comment
UnknownMerc Sep 10 2010 replied:

wow lol all the 3 hl1 games have theyr remakes
just wow

+2 votes     reply to comment
Demenzuz Sep 9 2010 replied:

Yes it's called ''guard duty'' :D

+3 votes     reply to comment
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