Relive Half-Life in this highly acclaimed, fan-made recreation
Recent Reviews:
Very Positive (150) - 90% of the 150 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (13,787) - 93% of the 13,787 user reviews for this game are positive.
Release Date:
May 5, 2015

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Making a game with the scope and scale of Black Mesa is a massive undertaking. Back in 2012 we made the decision to release what we had completed up to that point, and were blown away by the community’s response, feedback, and improvements to our work. We want to keep that relationship alive and well by using Early Access as a tool for allowing our community to participate in the final phase of Black Mesa’s development.

In addition, our ambitions go beyond the original Xen chapters found in Half-Life. We have a standard of quality that we have to achieve. Early Access allows us to commit resources to bring you the remaining chapters with the quality that you expect.”

Approximately how long will this game be in Early Access?

“We currently have the first ~85% of our single player campaign completed (8-12 hours). For the last 15% we want to not only recreate it, but improve upon it to make it an enjoyable and memorable experience.

Xen will be available soon in 2019”

How is the full version planned to differ from the Early Access version?

“The conclusion of the single player campaign, with the addition of the Xen chapters
Final polish on the Earth-based chapters of the single player campaign”

What is the current state of the Early Access version?

“Over 8-12 hours of single player campaign. Multiplayer deathmatch and team deathmatch with 8 completely re-imagined Half-Life 1 maps on the Source Engine.”

Will the game be priced differently during and after Early Access?

“Black Mesa will be $19.99 USD during the Early Access phase. This price will not change after we move out of Early Access.”

How are you planning on involving the Community in your development process?

“We intend to work closely with our community as we complete the final portions of Black Mesa. We started out as a modding team aiming to do true justice to a Half-Life: Source port, and we won’t forget our roots.

The Black Mesa game hub and forums will be the primary points of interaction with our users. Many team members regularly browse these areas to discuss ideas with the community, and to show progress on game development. Community feedback will be sorted into groups and taken into account as we develop.

We also support Steam Workshop, and will be watching and encouraging developments there.”
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Recent updates View all (38)

June 10

June Mini Update

We have a couple things planned for later this month, but we wanted to give everyone a mini update, so no one thought we had disappeared for the summer. Here are just a few of the improvements/fixes we have been working on alongside Xen.

Fixed Rocket Launcher Guidance
One of the biggest issues we had in all of Black Mesa was the rocket launcher. It would track strangely, and made fights with helicopters harder than they needed to be. This was super apparent when we started locking down the Gonarch fights. We rebuilt the RPG tracking and re-added the cross-hair elements to give players better feedback for when it was in guidance mode.

Added Stumble Animations to Zombies
This is a great feature in the Half-Life episodes. It adds a layer of immersion and strategy, so we implemented it into Black Mesa.

Buffed Tracers
Like the stumble animations above, this is a small change that really helps the overall feel of the game. We increased the size of tracers fired by the player, and fixed a bug that blocked them from being fired by HECU and other NPCs.

That’s all for right now. We’ll be back later in June. Thanks!
239 comments Read more

May 2

May News Update

Hello from the Black Mesa team! We have been GRINDING on this Xen thing, so let’s get right into where we are at:

Xen - Final Art/Polish
We are driving though each of the six maps, capping off the final tasks, and doing little bits of housekeeping to make the levels shine. We are also taking a hard look at the performance of each level to make sure the game runs as smooth as possible on the myriad of machines out there. Thus far, we have made significant progress with deep engine optimisations, as well as several sweeping game-wide asset optimisation passes. We are also looking into other engine fixes, such as batch rendering for props and displacements to further increase performance.

Gonarch - Final Art/Polish
We now have Gonarch arted and lit, with all the technical effects and animations implemented. All that’s left is to polish the animations and effects, and to make sure the player clipping is smooth throughout (as well as some water features). We are really proud of the many encounters, interactions, and fights with Gonarch throughout the chapter, and can’t wait to see how they play out there in the wild.

Show ‘em, Giphy...

Interloper - Design Lock/Art
We’re design locking the chapter while also building out the art and lighting. In order to get the art completed in record time, both the artists and level designers are creating placeholder assets so that we can detail the play space, then simply drop in the final art by overwriting the placeholders. We want to keep Interloper mostly under wraps, and the parts we do want to show off aren't quite ready for the spotlight. So instead, here is some art to give everyone a hint of what is in store for Interloper:

Old Concept for Interloper Exteriors By Eddie Hinestroza

Interloper Materials By Mark Foreman

Console Models Built with Modularity in Mind By Robert Chinner


This is how we plan to release in the coming months:

Technical Beta - This will be a couple of maps to test the latest engine, and test the performance of our maps. This will be public, but more or less of a stealth release for people who are interested in helping us test. This way we can test on a lot of machines quickly, and have time to implement any crucial feedback.

Open Beta - After we have implemented the feedback from the technical test, we will push the entire game to open beta. This will give us testing for the rest of the levels to again make sure the game releases as smooth as possible.

Release - Though we are expecting all the betas to run well, if you have been waiting for the full Black Mesa experience, this is what you want to wait for. Once we know the beta does not set people’s machines on fire, we will switch the full game over to the main Steam branch and announce its full release! After this, we will continue to monitor feedback and ideas from the community for Xen, and release periodic bug fixes and updates.

In addition to these staggered releases, we plan on launching a public discord to work in conjunction with our Steam forums. This will be a great place to chat, report bugs, and get mini updates from the team. We are not sure when we will be launching this, but it will probably be with one of the betas. This is one of the ways we hope to engage a bit more with the community, and provide more regular updates and interactions.

Soon! ™

Thanks Again
Apologies for the silence over the last few months. We have been really diving into our work. Every once in a while we poke our heads up to see how far we have come, and how close we are to finishing this massive undertaking. We have more planned updates and fun stuff to show off on the way to the borderworld! Thanks!

458 comments Read more
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“This is Half-Life updated just enough to make it palatable for contemporary tastes, but not so much as to deviate from the original vision.”
YES – Kotaku

“Black Mesa Source winds up being exactly what it always promised to be – a modernised, faithful recreation of a deservedly landmark first-person shooter.”
Rock Paper Shotgun

“It's a brilliant tribute to one of the greatest videogames ever made, and it's also a good game in its own right.”
8/10 – Destructoid

About This Game

Relive Half-Life in this highly acclaimed, fan-made recreation.

Main Info
Black Mesa is the award winning fan-made re-imagining of Gordon Freeman's landmark journey through the Black Mesa Research Facility. Relive Half-Life, Valve Software's revolutionary debut, and experience the game that raised the bar for the entire game industry all over again!

Key Features
Nostalgia has never felt so fresh - Expect tremendously detailed environments, old-school tough-as-nails combat, and a gripping story with memorable characters. The all-new soundtrack, voice acting, choreography and dialogue create a more expansive and immersive experience than ever before!

Heavily updated single player experience - The over 10 hour single player experience has greatly improved from the mod release; new visuals, new voice over, updated gameplay encounters, stability changes and more. Xen is not part of the Early Access release, but will be included as a free update when it is ready.

Black Mesa Multiplayer - Fight with or against your friends, in two game modes across 10 iconic maps from the Half-Life universe including Bounce, Gasworks, Stalkyard, Undertow and Crossfire!

Custom Modding Tools & Workshop - Use the same tools as the developers! Create your own mods, modes and maps for Black Mesa and Black Mesa Multiplayer and then share your work, and subscribe to others, on the Steam Workshop!

Complete Steam Integration - Collect the full set of trading cards, backgrounds, emoticons, and achievements! Steam Cloud, Steam Workshop and partial controller support!

Run. Think. Shoot. Source.

System Requirements

SteamOS + Linux
    • OS: Windows® 7 (32/64-bit)/Vista or Greater
    • Processor: 2.4 Dual Core Processor or Greater
    • Memory: 4 GB RAM
    • Graphics: 1 GB Dedicated Video Card or Greater
    • DirectX: Version 9.0c
    • Network: Broadband Internet connection
    • Storage: 15 GB available space
    • OS: Windows® 7 (32/64-bit) or Greater
    • Processor: 3.0 Quad Core Processor or Greater
    • Memory: 6 GB RAM
    • Graphics: 2.5 GB Dedicated Video Card or Greater
    • DirectX: Version 9.0c
    • Network: Broadband Internet connection
    • Storage: 15 GB available space
    • OS: Ubuntu 14.0 or Greater
    • Processor: 2.4 Dual Core Processor or Greater
    • Memory: 4 GB RAM
    • Graphics: 1 GB Dedicated Video Card or Greater
    • Network: Broadband Internet connection
    • Storage: 15 GB available space
    • Additional Notes: Does not support the Nouveau display driver
    • OS: Ubuntu 14.0 or Greater
    • Processor: 3.0 Quad Core Processor or Greater
    • Memory: 6 GB RAM
    • Graphics: 2.5 GB Dedicated Video Card or Greater
    • Network: Broadband Internet connection
    • Storage: 15 GB available space
    • Additional Notes: Does not support the Nouveau display driver

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