Half-Life 2: Lost Coast is a playable technology showcase that introduces High Dynamic Range lighting to the Source engine. It is included with Half-Life 2, purchased on Steam.

Originally planned as a section of the Highway 17 chapter of Half-Life 2, Lost Coast follows Half-Life protagonist Gordon Freeman as he travels up a coastal cliff to destroy a Combine artillery launcher in a monastery, which is firing on a nearby town.

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Lost Coast: GTE/Half-Life 2: Death Edge is out now!

Hello everyone, it's been a while since the last update, but we're finally back with some good news!
A little over a month ago me and Binkus decided it would be a good idea to work on Lost Coast and release it as a sort of demo for HL2 GTE, or rather an "interactive sneak peek", so please check it out under the "Files" section of this page. Everything that was possible to translate has been translated: Dialogues, Commentary, NPCs, Textures, HUD, Menu, Captions, you name it. For the full experience I'd suggest turning Full Closed Captions on ;)

Current Mod Status

Some people may be wondering why it's taking me so long to work on something that doesn't even require coding or mapping, and the answer is quite simple. Partially it's because of University, back in September 2020 I started my Uni career so the amount of free time I have got reduced, of course not that much but still definitely less than before. The other reason is just me doing things slowly. I got to admit that I spend more time doing anything else than actually working on the bulk of the project. Would it take less if I concentrated more of my free time on the project? Absolutely yes, I just prefer doing it at my own pace, since I don't really like excessively pouring my energy on one thing constantly, and it would only hinder the outcome in some form or another. Obviously the mod is not dead and we're still working on it!

That being said, enjoy the sneak peek and see you on the next article!

oyqea NtrTAYnMnT Source Development Center is open for business

oyqea NtrTAYnMnT Source Development Center is open for business

News 2 comments

Anyone can apply, Everyone can collaborate! In this development company people from around the globe can join together to collaborate on each other's...

The work goes on... on Dust

The work goes on... on Dust


The work can go on... Glad that i could fix the maps simply...

DUSTMod Demo Release

DUSTMod Demo Release


Worked on my first Source Mod the last Months... Glad to release the demo today...

Obsidian Conflict Fall 2018 media update

Obsidian Conflict Fall 2018 media update

News 12 comments

It has been five months since we announced our comeback, let us show you what we've been working on since then!

Add file RSS Files
rtx conf

rtx conf


This is the rtx.conf file necessary to run Half-Life 2: Lost Coast with RTX Remix. Place it in the root directory of the game.

lostcoast arabic

lostcoast arabic

Lost Coast Arabic Localization Language Pack

The ZIP includes: closedcaptions_arabic.dat (a compiled arabic captions file. Must be put inside the "resource" folder with closedcaptions_arabic.txt...

Game Capture: Half-Life 2: Lost Coast

Game Capture: Half-Life 2: Lost Coast

USD Capture

All singleplayer maps captured, with some weapons, most items, and most enemies, for use in RTX Remix mod projects.

BSP Decompiler by 005

BSP Decompiler by 005

Mapping Tool

005 (created by 005) is a decompiler for most BSP formats. Support may vary between engines. Also supports outputing to many different map editor file...

Half-Life 2 with ASHPD v0.8.3-beta

Half-Life 2 with ASHPD v0.8.3-beta

Full Version 14 comments

First release with Lost Coast support. Portal Gun weapon icon by RealBeta, uploaded to GameBanana by RaraKnight.

HL2 Ultimate Mods collection DVD1 Launcher

HL2 Ultimate Mods collection DVD1 Launcher

Installer Tool 3 comments

Half-Lfe 2 Ultimate Mods collection DVD1 Launcher Tool

Comments  (0 - 10 of 13)
Estranged666 - - 7 comments

Extremely easy game :)

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FluffyKittenChan - - 139 comments

Needs a sequel .____.

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jobels - - 59 comments

I love playing the "tech demo" levels on games, years after their release. Now, looking back, I think some of the tech demo levels for games can be better than most of the levels in the game itself. Half-Life 2 was good all-over though, absolutely flawless.

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Mr.Mundy - - 44 comments


That extension make you think the Source Engine is a good engine but in fact it's just a bugged bunch of craps.

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siftheadz - - 155 comments

*looks at avatar*
This is a good example for the dictionary definition of irony.

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SteveZombie - - 3,730 comments

I think HDR is the best thing to ever happen to Source.

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ps3gameboy - - 45 comments

This is an epic hl2 tech demo.

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RangerC - - 1,484 comments


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Kasumi Krystal
Kasumi Krystal - - 1,446 comments


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MartyForEels - - 175 comments


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Landon1121 - - 224 comments


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