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Welcome to our first media update this year!

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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 9 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 for more information and a video.

Operation: Black Mesa is a total Source remake of Half Life: Opposing Force. Using the Source engine, the developers plan to recreate the Black Mesa research Facility as it was seen by Corporal Adrian Shephard of the H.E.C.U. Half-life: Opposing Force...
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  (2080 - 2090 of 3,453)
xsantosis Dec 5 2010 says:

Stealthgato, I will go Here if I have desire of going away, insolent brat!

+2 votes     reply to comment
NuBiTo Dec 7 2010 replied:

Don't try to speak like those Victorian era style if you cant. Makes you look stupid and retarded.

0 votes     reply to comment
Boogiepingas Dec 6 2010 replied:

You fool no-one, little child.

-1 votes     reply to comment
xsantosis Dec 5 2010 says:

I do not vote for this mod, because sooner or later die, I will continue to choose Black Mesa Source

-3 votes     reply to comment
EliteAssassin Dec 6 2010 replied:

What? This mod has the same chance of dying as Black mesa source. Which I doubt either of them will die and its not very smart to think of not watching this just because it "might" die just like any other mod could.

+2 votes     reply to comment
Boogiepingas Dec 5 2010 replied:

xsantosis, go suck the **** of the devs of BMS in their forums please, nobody likes you here, childish fanboy.

0 votes     reply to comment
roadrunner09 Dec 5 2010 replied:

BMS can't even win MOTY anymore until it's released...

+1 vote     reply to comment
ZitaX Dec 5 2010 replied:

Yeah, cause you know ... its impossible to vote for both ... yeah ...

+1 vote     reply to comment
MR.sugar Creator
MR.sugar Dec 5 2010 replied:

Black Mesa, which is without update for about year? And you call obm dead? Your choose...

+2 votes   reply to comment
Simmons Dec 5 2010 says:

will this take as long as black mesa source?

+1 vote     reply to comment
PurpleGaga27 Dec 5 2010 replied:

I don't think so. As long as there's updates, the time it takes to do this development probably won't last as long as Black Mesa.

+1 vote     reply to comment
Nickel_Dare Dec 5 2010 says:

Im not gona vote for it.
It was said over and over to be released soon , and they dissapointed me very often.
I still love the mod but i think its fair to not vote for them if they cant keep theyr Plans.
If it will keep going on like this , then Portal 2 will be released before this mod and this would be realy sad.

+1 vote     reply to comment
Nickel_Dare Dec 5 2010 replied:

oh gosh.. just saw it .. commented on the Wrong mod .. why are the 2 mods with " Balck Mesa " in it .. sry i ment the other Mod..
If i could i would give you now 5 Votes for Excuse.

+1 vote     reply to comment
roadrunner09 Dec 5 2010 replied:

All good! :)

Well technically you could get 5 votes... Tell your friends about us! We need help. Hehe

+2 votes     reply to comment
roadrunner09 Dec 5 2010 replied:

:S When did we say that? Maybe you're getting us mixed up with black mesa source.

+2 votes     reply to comment
ArturoPahua Dec 5 2010 replied:

This mod has been under developement from 2008. two years is a reasonable time looking what we already have done in that time, donĀ“t you think? we are not in a race Sir. this is for fun, for love to HL Opposing Force and FOR FREE.

+3 votes     reply to comment
NuBiTo Dec 5 2010 replied:

Hey, it could have been worst right? Look at Black Mesa, and see the number of people bitchin' over there. Its laughable.

+2 votes     reply to comment
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Operation: Black Mesa
Operation: Black Mesa
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9 months ago
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