A singleplayer mod for Half-Life based on a new version of Half-Life FX engine. While the main mod, HLFX:Single, that uses maximum of engine features, is still being developed, you can have an opinion of relatively small project entitled HLFX: Lost in Black Mesa.


Many people were missing during the Black Mesa incident. Only a few, a mere handful of people succeeded to reach the surface, where they were being awaited by armed troops of marines with an order to annihilate any witness of the catastrophe. You are Alex Jones, a young scientist that by a lucky chance worked in an HEV suit when it was an accident. When leaving your laboratory and entering an elevator you could not even imagine that the way out will be so long and difficult. Kindred and friends have already considered you a missing person. But can it be true that a person lost in a huge underground complex will meet them again and tell the truth about what was happened in the Black Mesa Research Facility?


The mod uses a lot of daring innovations brought by a latest version of Half-Life FX:

  • Static diffuse and specular bump-mapping
  • Dynamic bumpmapping for a flashlight
  • Parallax mapping
  • Shader script system
  • Refractive glass
  • Projective soft shadows
  • Projective flashlight
  • High-resolution textures and decals
  • Anisotropic texture filtering
  • Detail textures
  • Light bloom effect
  • Heat haze effect
  • Particle systems
  • Interactive physics elements


HLFX: Lost in Black Mesa consists of three gameplay levels. You will visit a laboratory complex and a part of Black Mesa monorail transit system. Like a HLFX:Single demo version, you will meet doors with keypads and will have an opportunity to manually delve into electric wiring to restore the power for some systems. Do not forget that Black Mesa complex is way too large, so there are some secret places in the game that are not accessed easily. Upon revealing a secret the game will show how much places like that there are on the level. And they are on each level, so keep your eyes open! In other respects this is a classic Half-Life-style gameplay - we still do our best to keep the original atmosphere. And you will judge whether we made it.


Please launch the mod only with the supplied launcher lbm_fx.exe located in the "lbm_fx/system" directory! Otherwise game may not work. If you need to run the game with additional peremeters, add them to the shortcut for that laucher. Please note that the game uses a modified opengl32.dll that is copied into Half-Life directory on game startup. When game shuts down this file is left in the game directory. In this case some anti-cheats may consider you a cheater and ban your CD-key. Therefore either disable anti-cheating software or manually delete opengl32.dll from Half-Life directory before running multiplayer games or mods. Chain Studios has no responsibility for a probable ban and frankly warns you.

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HLFX: Lost in Black Mesa

HLFX: Lost in Black Mesa

6 years ago Full Version 19 comments

A singleplayer mod for Half-Life based on a new version of Half-Life FX engine. While the main mod, HLFX:Single, that uses maximum of engine features...

HLFX: Lost in Black Mesa (English Patch)

HLFX: Lost in Black Mesa (English Patch)

6 years ago Patch 10 comments

Patch for HLFX: Lost in Black Mesa, replaces Russian texts with English ones in game. Please intall it into the same directory the mod was installed into...

Post comment Comments  (20 - 30 of 94)
ahkinne Feb 24 2013 says:

When i start the game everything seems okay but then all the in game text is like russian or something i could use some assistance in changing this

+1 vote     reply to comment
XaeroX Creator
XaeroX Apr 6 2013 replied:

There is a patch in the "downloads" section that translates all texts into English.

+1 vote   reply to comment
Zombinelol Nov 10 2014 replied:

dude make a RAR I dont like EXE's cuase I got a virus once and it give sme nightmares

+1 vote     reply to comment
NachitooBalboa Feb 23 2013 says:

Thanks for the mod

+1 vote     reply to comment
max-damage Feb 4 2013 says:

No multiplayer, right? :(

0 votes     reply to comment
R0ck4x3 Feb 4 2013 says:

This looks amazing, especially for the Goldsrc engine.

+1 vote     reply to comment
Patrixus Nov 1 2012 says:

Hello! I have a big problem, could anyone help me?
I love this mod but I think I found a bug and I can't continue the game because of it. Everything works just fine with one exception: I can not see the informations written on ojects, only a title in the message box, but no written text. No problem with the security codes - I just keep Barney alive, he will open security doors for me. But the real problem is the generator: when I open it i can't see the puzzle to solve it, only a very small icon and that's all. Is there a FIX to solve this bug?

+3 votes     reply to comment
cahal89 Sep 18 2012 says:

This mod is amazing! Wow, if only Half-Life was completely remade with this engine and graphics. HL: Source doesn't hold a candle to this.

+2 votes     reply to comment
dinhcapluumanh Jun 7 2012 says:

I can't play this mod,the game freeze at loading screen:<.help me please

+2 votes     reply to comment
XaeroX Creator
XaeroX Jun 10 2012 replied:

What HL version do you use? And what video card?

+2 votes   reply to comment
Aplayer12345 Apr 2 2012 says:

To make this mod recive a 10,let us play in the original HL maps and make some detailed textures!
this mod on HL=EPIC WIN!

+1 vote     reply to comment
IronWoodside Jul 10 2012 replied:

Or even better Opposing force or blue shift or even half-life MP

+2 votes     reply to comment
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Release date
Released 2009
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87 votes submitted.

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Highest Rated (2 agree) 10/10

КЛассно, ребята постарались не зря

Jun 2 2011 by m1lkme

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HLFX: Lost in Black Mesa
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2 years ago
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