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.

Image RSS Feed Latest Screens
Screenshots Screenshots Screenshots
Downloads RSS Feed Latest Downloads
HLFX: Lost in Black Mesa

HLFX: Lost in Black Mesa

Dec 25, 2009 Full Version 17 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)

Dec 25, 2009 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 89)
cahal89 Sep 18 2012, 6:45pm 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
Elitesse Aug 22 2012, 5:53pm says:

Great mod!

+3 votes     reply to comment
dinhcapluumanh Jun 7 2012, 9:55am 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, 5:52am replied:

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

+2 votes   reply to comment
Aplayer12345 Apr 2 2012, 8:45am 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, 7:02am replied:

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

+2 votes     reply to comment
Morshu Aug 23 2010, 8:56am says:

In order to make the review lasting, it was made an article of the Reviewers and Critics group. You can find it here: http://www.moddb.com/groups/reviewers-and-critics-group/news/hlfx-lost-in-black-mesa-review

-3 votes     reply to comment
Zethass Aug 3 2011, 8:03pm replied:

that review sucks

+4 votes     reply to comment
Lowlife Aug 19 2010, 12:15pm says:

Hey XaeroX, when's HLFX: Single coming out? Or is it coming out at all?

I can't wait to play my favorite game with such great graphics as seen in this mod!

+2 votes     reply to comment
BlackYousa Jul 14 2010, 6:05am says:

Oh whoops. Nevermind #1, I found it. Sorry about that :B

+2 votes     reply to comment
Post a Comment
click to sign in

You are not logged in, your comment will be anonymous unless you join the community today (totally free - or sign in with your social account on the right) which we encourage all contributors to do.

2000 characters limit; HTML formatting and smileys are not supported - text only

Half-Life Icon
Chain Studios
Send Message
Official Page
Release Date
Released Dec 24, 2009
Mod Watch
Track this mod
Community Rating



83 votes submitted.

You Say


Ratings closed.

Highest Rated (2 agree) 10/10

КЛассно, ребята постарались не зря

Jun 2 2011, 9:41am by m1lkme

First Person Shooter
Single Player
Embed Buttons

Promote HLFX: Lost in Black Mesa on your homepage or blog by selecting a button and using the HTML code provided (more).

HLFX: Lost in Black Mesa HLFX: Lost in Black Mesa
HLFX: Lost in Black Mesa
7,230 of 22,646
Last Update
1 year ago
97 members