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 is still an amazing game, although it is not nearly as amazing as it was when it was released.

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New Year Update 2022

New Year Update 2022

News 5 comments

Happy New Year! Just a short look at our Tripmas event, new media and major announcement - Steam Store page is live!

Half-Life Blue Shift 20th anniversary update

Half-Life Blue Shift 20th anniversary update

News 21 comments

Half-Life: Blue Shift turned 20 and that is a great opportunity to showcase some awesome stuff we were working on. Get ready for some exciting stuff!

Summer 2020 Update

Summer 2020 Update

News 32 comments

It´s update time everyone. More media and info about progress on Half-Life expansion packs remakes.

Operation: Black Mesa - Opposing Force anniversary update (part 2)

Operation: Black Mesa - Opposing Force anniversary update (part 2)

News 17 comments

As promised, we are back with next part of the anniversary update - actual media update to please your eyes with some progress.

Opposing Force 20th anniversary

Opposing Force 20th anniversary

News 8 comments

It´s time to celebrate 20th anniversary of one of the best expansion packs every created. Join us in our live streams, multiplayer sessions and stay...

June 2019 media update

June 2019 media update

News 34 comments

Why hello there! It's Tripmine Studios on the line, and we have something to share with you.

New Year update

New Year update

News 13 comments

These last 365 days of the year went by so fast with fun and excitement achieving our goals as a team, We can all say it has been a wonderful year so...

Summer 2018 update

Summer 2018 update

News 50 comments

With summer in full swing, we at Tripmine decided to bring some more excitement to the sun-bleached days with a brand new media update!

Dev.blog summ(er)ary

Dev.blog summ(er)ary

News 13 comments

Why hello there! The Summer season is nearing it´s conclusion and it might be the right time to say goodbye to hot summer days with our short summary...

Guard Duty summer media update

Guard Duty summer media update

News 35 comments

We work hard even during hot summer days and we would like to share some of our work with you. Enjoy this new Guard Duty update.

Operation Black Mesa Update

Operation Black Mesa Update

News 20 comments

We are excited to share some more information and media. A brief look at what 2016 was like and what future might bring. Find out more in the update and...

Life Signs 2015

Life Signs 2015

News 35 comments

Operation Black Mesa and Guard Duty are back! It's been a very busy year and here's what we've been up to.

2014 Kickoff Update

2014 Kickoff Update

News 28 comments

The latest news on Operation Black Mesa and Guard Duty!

Operation: Thank You

Operation: Thank You

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!

News 33 comments

Opposing force remake for Source engine has been greenlit!

Progress update

Progress update

News 14 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

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.

Greenlight report

Greenlight report

News 7 comments

We are back with short report and some new media. Read to know what we have for you in the near future!

Join the team!

Join the team!

News 16 comments

Join our team and help us to progress even faster! And we are in TOP 100 on Greenlight!

Greenlight update part 2

Greenlight update part 2

News 18 comments

Second part of the Greenlight update, introducing some in-game screenshots and... Announcing the release date for the multiplayer part!

Operation: Greenlight

Operation: Greenlight

News 15 comments

Operation Black Mesa, a remake of award-winning expansion pack Opposing force for Half-Life finally hit the Steam Greenlight!

Greenlight incoming for Blue shift and Opposing force remakes !

Greenlight incoming for Blue shift and Opposing force remakes !

News 30 comments

Few words about Greenlight, progress and more about Guard Duty and Operation Black Mesa.

Guard Duty and Operation Black Mesa- MOTY update

Guard Duty and Operation Black Mesa- MOTY update

News 10 comments

Tripmine studios decided to give you some new media from Operation Black Mesa and Guard Duty. Hope you enjoy them.

Report for duty

Report for duty

News 15 comments

Small update and invitation to our multiplayer session in the original Opposing Force: Multiplayer.

Operation Black Mesa and Guard Duty update

Operation Black Mesa and Guard Duty update

News 19 comments

Tripmine studios just released the very first update for Operation Black Mesa and Guard Duty. Check it out to find out latest info and media about the...

April Media Release

April Media Release

News 31 comments

Spring is here, and with it, the Operation Black Mesa April media release!

Our progress & Voting

Our progress & Voting

News 12 comments

It's that time of the year again here on moddb and thanks to your votes we are again among the top 100! Now we here, on the Operation Black Mesa team...

September Media Release

September Media Release

News 39 comments

In this update we'd like to present a few changes that are going to take place in how we present our media in addition to showing the actual material...

May Media Release

May Media Release

News 72 comments

Hello everyone! Long time no read and write. I'd like to open this article by informing you all that the unconfirmed rumours that have been running wild...

New Years summary

New Years summary

News 5 comments

We figured we’d round up the year with a summary of OBM this year; the events that have taken place, developers that have come and gone and progress...