This is Guard Duty. Put your feet in the shoes of Barney Calhoun, a security guard at the Black Mesa Research Facility who has no idea that the next few hours are going to change his life forever. Re-live the exciting adventure of Blue Shift, now re-created in the award winning Source engine.

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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.

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 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 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...

MOTY update Part 2- Full steam ahead!

MOTY update Part 2- Full steam ahead!

News 12 comments

Check out our latest update for new media and information!

MOTY update Part 1

MOTY update Part 1

News 4 comments

First part of our MOTY update. Check out for some new concepts and in-game media!

DEV.Blog. Uplink remake

DEV.Blog. Uplink remake

News 12 comments

Get small insight of hows the progress coming along on the Uplink remake.

Guard Duty- November update

Guard Duty- November update

News 16 comments

Once again, we are here with a new update. We heard that rumour about the mod being dead spreads around the community. I can assure you that we are not...

Blue Shift Summer update (part 2)

Blue Shift Summer update (part 2)

News 13 comments

The second part of the anniversary update is live! Check it out!

Blue shift celebrates 10th anniversary! (Part 1)

Blue shift celebrates 10th anniversary! (Part 1)

News 16 comments

Happy birthday Half-Life: Blue shift. This is special occasion for Guard Duty team, so check out what we have for you!

Blue shift Source- November update

Blue shift Source- November update

News 15 comments

It's here! Out second media is finally out. Enjoy bunch of media and stay tuned for more!

Dev.Blog: Duty Calls redesign

Dev.Blog: Duty Calls redesign

News 19 comments

Beside of visually appealing levels, we want to bring more logical and artistic sense to our levels.

Dev.Blog: Birth of a Storeroom

Dev.Blog: Birth of a Storeroom

News 13 comments

This blog shows the process of a room creation from ground up in few steps.

Hi there!

Hi there!

News 25 comments

Rex, our texture artist made a dev.blog for you, to make waiting for upcoming media update i bit shorter.

Dev.Blog- MP5 creation process part 1

Dev.Blog- MP5 creation process part 1

News 19 comments

Our second blog is introducing the showcase of stuff creation step by step. Lets see, what it takes to create such a MP5 and get it in-game. The first...

Opening blog- community events!

Opening blog- community events!

News 22 comments

Check out our first dev. blog and find out more media and information about the project!

The past, The present and the future

The past, The present and the future

News 19 comments

After a year of hard work, we are finally releasing our very first media update. Check it out to see, hows the remake of Half-Life Blue shift for Source...

Small Christmas surprise from Guard Duty

Small Christmas surprise from Guard Duty

News 8 comments

The Guard Duty team decided to give you at least small surprise for Christmas...