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  (18630 - 18640 of 18,828)
plywood Aug 13 2005 says:

All i can say is wow!....
I didnt bother buying hl2 silver because hl source looked crap, i tried it out and it is basicly hl1 with good water and 3d skyboxes.

This is something completely different, the mapwork looks ace.

All i can say is Good luck, i will be looking forward to playing it :)

- Plywood

+1 vote     reply to comment
NazGul Aug 12 2005 says:

These guys are doing a awesome job!!!!!!

+1 vote     reply to comment
Puppet_That_Kills Aug 12 2005 says:

Are you crazy!!?!? This is an Aftermath and a Half Life 3 killer! Ok, maybe I'm going a little to far saying Half Life 3, but it's still an amazing piece of work! Keep up the amazing work guys!


+1 vote     reply to comment
Stimor Aug 12 2005 says:

Its just a mod, no "aftermath killer" for you, sheesh!

+1 vote     reply to comment
Tiki Aug 11 2005 says:

SuperRad987 wrote: Is there a release date in the near future? Cause this mod looks AMAZING and will just give me sumthin 2 play while i wait 4 a Half-Life 2 expasion. Great job guys and keep up the good work. Ooo and cool site!!!

As far as I'm concerned... this IS an expansion, It's a lot better than HL: Source obviously, and something tells me I'll have a lot more fun playing this than Aftermath, especially if HDR is updated by the time they release this.

+1 vote     reply to comment
Forsete Aug 11 2005 says:

Hot! The "Surface Tension" dam looks godlike.

+1 vote     reply to comment
ZeroZF Aug 11 2005 says:

valve r u u blind dnot u want to hire those guys knock knock valve

+1 vote     reply to comment
CD_TOASTER Aug 10 2005 says:

wow if this gets completed it will be better than hl source which is jsut a crappy port with alot of the gfx unchanged

+1 vote     reply to comment
OmgitsJoe Mar 25 2006 says:

OMGOMGOMG im in shock it looks so great OOO..

+1 vote     reply to comment
ZeroZF Aug 9 2005 says:

that right

+1 vote     reply to comment
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Half-Life 2
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Release date
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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Black Mesa
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