Run. Think. Shoot. Live. Source. Black Mesa is the Half-Life 2 total conversion of the original Half-Life game. Utilizing the Source engine and its endless array of possibilities and powers, Black Mesa will throw you into the world that started the Half-Life continuum and introduced Gordon Freeman to the world as a gun-toting, bullet-dodging Ph.D. in Theoretical Physics. Read More...

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Welcome back Mr. Freeman, Black mesa is now available on Early Access, Black Mesa is what we had all hoped half life source would have been, a total re invisoning of the Classic brought up to date with higher definition models, textures and more.

Crowbar collective state. “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.”

"We currently have the first ~85% of our single player campaign completed. For the last 15% we want to not only recreate it, but improve upon it to make it an enjoyable and memorable experience. We feel it will take us considerable time to get the last 15% up to our standards, and putting a time estimate on it would be a total guess.”

This EA release sees you playing over 10 hours of single player campaign. Multiplayer deathmatch and team deathmatch with 6 completely re-imagined Half-Life 1 maps on the Source Engine.

Black Mesa - Early Access Black Mesa - Early Access Black Mesa - Early Access Black Mesa - Early Access

Happy Birthday Half-life!

Happy Birthday Half-life!

2 years ago News 79 comments

Last year, Black Mesa was one of the first Steam games to be Greenlit by you, our amazing fans. We've had quite a year since then, with a lot happening...

Black Mesa v1.0 released

Black Mesa v1.0 released

3 years ago News 262 comments

Prepare for an experience that you will find Nostalgic, exciting and fresh.

Get Black Mesa on Steam!

Get Black Mesa on Steam!

3 years ago News 44 comments

Fellow Scientists, We have gotten a lot of remarks, questions and demands that we get Black Mesa on Steam. In the past, the answer has always been the...

Community Update!

Community Update!

3 years ago News 82 comments

We're freaking out over here! It is so exciting to share this news with you!

BMS Monitor Windows Error

BMS Monitor Windows Error

3 months ago Textures 7 comments

Just a small realistic thing for Black Mesa. Archive contains two error textures for monitors. Extract in your game directory and enjoy!

BMS | Reworked Chapter Icons

BMS | Reworked Chapter Icons

3 months ago GUIs 2 comments

Black Mesa: Source chapter icons replacement. Just extract the archive in your game directory and enjoy! :)

BMS | Insurgency HMMWV

BMS | Insurgency HMMWV

4 months ago Vehicle Model 5 comments

Insurgency HMMWV for Black Mesa: Source. Archive contains desert and camo HMMWV variant.

BMS | No Tripmine & Triplaser beam

BMS | No Tripmine & Triplaser beam

4 months ago Effects GFX 10 comments

Removed blue tripmine laserbeams and red turret triplaser beam. This addon will make the game more realistic and hard.

BMS | No turret laserbeams

BMS | No turret laserbeams

4 months ago Effects GFX 0 comments

Removed ground & ceiling turret red laserbeams. This addon will make the game more realistic and hard.

BM Particle Effect Improvement pack

BM Particle Effect Improvement pack

5 months ago Effects GFX 2 comments

Released a preliminary collection containing many updates to most weapons, along with other across-the-mod effects! See the thread in the description...

Post comment Comments  (40 - 50 of 18,828)
supersonicbros369 Jun 5 2015 says:

I'm a little disgruntled that the final build rings up 20 bucks but considering all the original modeling and scripting and voice recording implemented, one can conclude the devs deserve some compensation.

Game of the year in my opinion.

+3 votes     reply to comment
powermind Jun 5 2015 buried:


They deserve more than $20 they deserve at least $60 or $40. And it's not really what you should say final.

-5 votes     reply to comment
IronWoodside Jun 20 2015 replied:

Well, think about it for a second. Think of all the mods that were released that were built from the ground up and got no pay for. Black Mesa had a lot of promised release dates they never fulfilled, Talk about broken promises. Becoming paid all of a sudden (in the eyes of the user who doesn't read the forums) is very interesting. They need to modify the engine anyway to make Xen possible, so it makes sense to cost money now. I never really cared for Early Access ****, I wont be buying Black Mesa until it REALLY wows me.

+6 votes     reply to comment
powermind Jun 23 2015 replied:

Well that is true. They did broke a lot of release promises and it's still is buggy but it's an early release but as you said, you never really care and you're also right about it becoming paid all of the sudden. I just got excited and bought the game. The only difference is, there's multiplayer, a lot of different things in the game. But now I've realized, nothing really much changed well basically.

0 votes     reply to comment
djcj Jun 4 2015 says:

Any plans to release this game on OS X and Linux too?

+3 votes     reply to comment
Urby May 27 2015 says:

I love all the butthurt comments from people complaining about the free version not getting Xen, like they're asking for some ridiculous price like a AAA release.

It's probably the same ignorant people who lashed out about the development taking so long. Well, now they've released it, it's proven very VERY enjoyable, and they can make a profit by charging for it. Who knows, a well funded Crowbar Collective might be encouraged to go on and make the next GAME OF THE YEAR 20XX or whenever. They obviously know how to make a decent game unlike the EAs and Activisions of today. Hell, they even dropped the price while it's not finished. Might as well grab it now.

Otherwise, shut up, grow up and realise that nothing worth having comes free you tight fisted arseholes.

+7 votes     reply to comment
lol3r1986 Jun 27 2015 replied:

So you basically say that its okay to pay for a partially finished product. I won't call it an demo because it has a lot more things into it (half of the game is finished, playable and enoyable) but its still a little to much to ask 20 $ for it. I would buy E.A. version fo 9,99 $ and that's all. And then when Retail will be released i'll read some reviews or watch some gamplay footages and then decide if its worh the full price.

+2 votes     reply to comment
lukeman3000 Jul 5 2015 replied:

Actually, yes. Under the early access business model, it's perfectly acceptable to release and pay for a partially-finished product.

That's kind of the freaking point.

+2 votes     reply to comment
BossN00b May 27 2015 replied:

Not necessarily everything, some good thing may as well come for free. Regardless of this, I agree, it is worth the money.

-4 votes     reply to comment
timothyhage May 24 2015 buried:


awesome mod then it became a awesome fullflage game on steam awesome work guys.

-11 votes     reply to comment
staffssuckshit Jun 4 2015 replied:

I am sorry, but I am not interest in some "awesome" work.

+2 votes     reply to comment
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Half-Life 2
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Released 2012
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3308 votes submitted.

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Highest Rated (131 agree) 10/10

This mod is amazing! Feels like i'm playing a Valve's game, not a modification.
Now i understand what people felt like in 1998.

Sep 14 2012 by HunteR4708

Lowest Rated (12 agree) 2/10

At first i made a really nice review to this game mod. But then i advanced further in the game and i got really pissed off... Yeah its pretty and scenic , yeah most of the voice acting is great and the music is fantastic but there is a huge annoying gash that just makes the game shit! AI: WHAT BASICALLY MAKES THE GAME SHIT AI: SHIIIT Soldiers...Im fine with other critters plaing running to eat you but soldiers(well the alien soldiers suck in this department as well). Anyway so where were we? oh…

Sep 17 2012 by Aleksei_Lenin

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