Operation Black Mesa is a total remake of Half-Life: Opposing Force. Utilizing the Source engine, Tripmine Studios plans to recreate the Black Mesa Research Facility from the ground up, as seen by the protagonist, Adrian Shephard.

Planned Features
• As a total conversion mod, Operation Black Mesa aims to be composed custom content entirely.
• All original maps re-created and re-envisioned for better realism and gameplay.
• Some maps are enlarged / extended to create a more lengthy and immersive experience.
• Improved AI, making enemies smarter and combat more dynamic.
• More enemy encounters to keep the action fresh.
• Scripted scenes with all the original Opposing Force characters to help bring the story to life.
• Textures and models pushing the limits of the Source engine, to bring you as much artistic detail as possible.
• New voice acting, new sound assets and a new soundtrack.
• Multiplayer that will bring back the classic gameplay, but also many new features, maps and game modes!
• Guard Duty, a remake of Half-Life: Blue shift is also being developed as DLC for Operation: Black Mesa.

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Summer 2020 Update

News 30 comments

Is it really that time, again? Indeed it is! We hope you are all safe and doing well - it has been quite the year! Even though apocalyptic events, we are still busy at work on our games.

(Foxtrot Uniform by Brandon Smith and Chris Onorati)

Much has changed since our last update in November 2019. We are steadily working on all aspects of the game. More levels are nearing completion, and unlike previous years, it's apparent that we are shifting our focus onto actual gameplay. We are thrilled that both Guard Duty and Operation: Black Mesa are now starting to resemble actual games. While we have had some NPCs, weapons, and the like in-game for some time, we are finally about to implement human NPCs. This represents a major milestone as it means we can at long last start to work on scripted scenes and story elements.

(Hazard Course by Brandon Smith)

Some new additions to our team go hand in hand with this progress. We have brought on some very talented voice actors to fill the roles of some old friends, as well as a small handful of new faces. You can hear some voice acting samples attached to this update.

Our audio department has grown significantly. Other than new voice talent, we are pleased to welcome a new composer to the team. While it might be a bit saddening that not all of the older tracks will appear in the final product, fear not! Our new composer is not only producing new tracks, but re-creating some of the fan-favorites to ensure a cohesive listening experience. Alongside this article we are releasing a few new tracks - how do they sound to you? Please share your thoughts.

To give a proper closure to the topic of in-game audio, below are samples of the Security Guard and HECU Grunt. Give them a listen!

Other departments are still hard at work as well. Weapons are being fine-tuned, with playtesting driving them to a near-perfect state. We are now working on a stretch-goal for Operation: Black Mesa and Guard Duty to each have their own unique viewmodel animations that will match the style of each protagonist. Since we started publicly sharing weapon showcase videos, some of you have given us valuable feedback. One point of public concern was our HUD color scheme. While still a work in progress, here are some pictures of the most recent iteration of the HUD for both games. We look forward to hearing your thoughts.

Last but not least, we are excited to share some short gameplay teasers - presenting our take on the Voltigore's nest. We hope to bring you even more videos in the future.

In closing, we would like to encourage any talented individuals to apply to our team and help us finish making these games a reality. If interested in the projects, or if you know someone who might be, please see our "application guidelines​" for more detailed information. Current priority positions are:

  • 3D Artist (Organics)
  • 3D Artist (Hard Surface)
  • Graphics Programmer
  • Animator
  • Various Voice Acting Positions

(The Package by Lander Van Hove) (Welcome to Black Mesa by Chris Onorati)

We will have more to share soon, so stay tuned. In the meantime, there are some more media to please your eyes. We cannot wait to hear your thoughts. To make sure you don´t miss anything, you can go check out one of our social channels.

(Missing in action by Oliver Curtis)

(Crush Depth by Chris Onorati) (last screenshot by Chris Onorati and Brandon Smith)

(Alien flora concepts by Harry Willson)

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...

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Operation Black Mesa soundtrack

Operation Black Mesa soundtrack

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...

Comments  (0 - 10 of 5,206)

Black Mesa is really awesome game, but Opposing Force remake look's pretty cool and for my opinion, it is better than Black Mesa. Keep it up!!!

Reply Good karma Bad karma+1 vote

ngl the new scientist model looks like a younger version of Source 2 Kleiner. Good work for real my guy

Reply Good karma Bad karma+4 votes

Just don't die pls, this was so promising along Guard Duty

Reply Good karma Bad karma+2 votes
Tmast98 Creator

We are far from dead, rest assured.

Reply Good karma+10 votes

A question:

In your FAQ, you wrote that from now on both are listed as one product, but what exactly does this mean? Both of these mods will be released simultaneously by the same game, or (as I read somewhere) Will GD be released in DLC format after OBM is released?

Reply Good karma Bad karma+4 votes

That was cool. Just try to stay alive during the Resonance Cascade in Black Mesa team okay? I don't want the aliens and marines to kill you before ending this project.

Reply Good karma Bad karma+2 votes

i feel like its been ten years since i first noticed that an oppfor remake was coming and the anticipation is palpable.

Reply Good karma Bad karma+1 vote

the recently released showcase video is by far one the best one I've seen,and those gorgeous scientist model! Keep up the good work!

Reply Good karma Bad karma+2 votes

Reply Good karma Bad karma+8 votes

Those Sexy Pit Drones!

Reply Good karma Bad karma+3 votes
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RT @LambdaGen: Half-Life HEV charger and battery remakes by @OscarLound Artstation.com T.co

Mar 3 2021 by tripminestudios

RT @GilzerJosi: Накінець-то зробив аптечку. Взяв у якості референсу аптечку з Black Mesa. Мені подобається іржа ) #halflifeT.co

Mar 2 2021 by tripminestudios

Sunday evenings is a time to relax and listen to that chill Lono track we dropped during the #Tripmas event. 🎧🎧🎧 K… T.co

Feb 28 2021 by tripminestudios

OBM merch was discussed by users in the discord today and we remembered when @FRAGLevelDesign made himself an OBM t… T.co

Feb 23 2021 by tripminestudios

RT @anti_kaspersky: @pixel_axel and @KinoFabino there's 3, actually T.co

Feb 22 2021 by tripminestudios

IMPORTANT ANNOUNCEMENT As we welcome more members into our connected communities we must stress the following: An… T.co

Feb 19 2021 by tripminestudios

RT @KAFFSoftware: The Gameplay Showcase premiere is starting now! Youtube.com

Feb 12 2021 by tripminestudios

An early WIP of Living quarters outbound by A_LegendaryEwok. This can give you idea how the content can change... Fb.me

Mar 1 2013 by guardduty

The update is closer and closer guys. That's why we merge everything together. Like the twitter right now:... Fb.me

Feb 21 2013 by guardduty

The Greenlight campaign will kick-start soon-ish! Moddb.com Fb.me

Feb 16 2013 by guardduty

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