Obsidian Conflict is a cooperative multiplayer modification set in the Half-Life 2 universe.
It features a large amount of new gameplay features on all-new maps specially designed for the mod with focus on cooperative gameplay, as well as over hundred user-made maps following the same formula.

In addition to that, You're able to play through vanilla Half-Life 2 all the way up to Episode 2, as well as experimental support for cooperative Half-Life: Source play.

Key features:

- All Source engine Half-Life series games playable in co-op online (Half-Life: Source, Half-Life 2, Lost Coast, Episodes 1 & 2)
- A large set of included custom maps, some in the form of classic combat & teamwork puzzles and others offering extraordinary new gameplay experiences such as cooperative farming and fishing
- New weapons, including dual Uzis, Medkit, Sniper Rifle, the Alyxgun, the Tau Cannon, deployable Manhacks, as well as support for scripted weapons allowing use of weapons from Counterstrike and Day of Defeat Source
- New NPCs, including many from the original half-life such as a fully-functional ichthyosaur, as well as a working mortarsynth from HL2
- Special merchant NPC and related entities, offering gameplay where players can spend points from their score to purchase weapons and map-specific objects
- Many co-op related features, such as a server-side lives system, hud waypoints, player locator, attention & medic calls, and map objectives, as well as players' inventory carrying over between level transitions
- Great support for community mappers, including features like the mapadd system to easily edit existing maps without having to recompile them, as well as tutorials and prefab examples for all of OC's new entities and features
- Support for custom playermodels and custom colorizations on weapons and hud elements

Image RSS Feed Latest Screens
WIP Map OC HUD Mockup Military Tablet
Blog RSS Feed Post news Report abuse Latest News: Breaking the silence

19 comments by Sha~nya on Oct 7th, 2014

Surprise! We still exist!

We have a hotfix in the works to address some of the problems that have been plaguing OC the last few months, it will fix the now-broken mounting system and improve stability of both the client and server.
Because this hotfix requires new binaries for both the server and client, you can expect a few new features too. Everyone who donated after the 1.35 release will finally get their donor access as well.

Sadly we can't give you an ETA just yet due to slow progress, our biggest problem is the lack of coders actively working on the code.
Some are too busy with their job or education while others simply don't feel like working on the code or haven't been in contact with the team for months.

That's why we're actively looking for new coders to ensure OC has a future, so if you:

  • Are proficient with C++, git and Source

  • (Beneficial, but is not mandatory) have experience with graphics and shaders (especially with regard to Source)
  • Are able to communicate with the team (not just language barriers, etc. but also whether you can work with team members without attitudes and all getting in the way)
  • Have enough time to work on a project like this (of course real life still takes priority, but you should at least be able to work on the mod somewhat regularly)

...Then post an application on the forums, send it via Email (info@obsidianconflict.net) or message one of our team members directly!
Of course we are always looking for other positions like mapping and modeling too, so don't be shy!

A big "Thank you!" to everyone who hasn't given up on us yet and sorry for not getting back to you sooner. We're going to post news more often from now on, even if it's just a small update to keep you in the loop.

Media RSS Feed Latest Video
Downloads RSS Feed Upload file Latest Downloads
Obsidian Conflict 1.35 Hotfix #1 (Client)

Obsidian Conflict 1.35 Hotfix #1 (Client)

Jan 23, 2012 Patch 13 comments

For mod client only, not required on dedicated servers. (Requires 1.35 Full.)

Obsidian Conflict 1.35 Hotfix #1 (Server)

Obsidian Conflict 1.35 Hotfix #1 (Server)

Jan 23, 2012 Server 1 comment

For dedicated servers only, DO NOT INSTALL ON MOD CLIENT!! (Requires 1.35 Full.)

Obsidian Conflict 1.35 Full Installer

Obsidian Conflict 1.35 Full Installer

May 30, 2010 Full Version 95 comments

Note: The playermodel installer is currently unavailable. Just hit "Cancel" during that dialog pop-up and the installer will continue properly.

Obsidian Beta 1.34 Full

Obsidian Beta 1.34 Full

Dec 27, 2008 Full Version 28 comments

Note: Only choose "Install client only" or the mod wont install properly.

Obsidian Beta 1.33 to 1.34 Patch

Obsidian Beta 1.33 to 1.34 Patch

Dec 27, 2008 Patch 1 comment

Note: Only choose "Patch client only" or the mod wont install properly.

Obsidian Conflict Community made Trailer

Obsidian Conflict Community made Trailer

Jan 9, 2007 Movies 0 comments

This is a community made video trailer for Obsidian Conflict. It shows off several of the mods maps, gameplay, and features. Take a look, see what you...

Post comment Comments  (0 - 10 of 729)
faroukderbali2 Apr 8 2015, 1:53pm says:

lol a nice mod for those who don't have Half-life 2 and want to play it only co-operatively, so guys if you don't have Half-life 2 just download and install steam then download and install Source SDK 2007 Base from steam then download and install this mod where sourcemods folder is (usually under steamapps/sourcemods), Now you can play it without having to get Half-life 2 or any of it's episodes :3

+1 vote     reply to comment
supersonicbros369 Mar 21 2015, 7:06pm says:

I wish at least half of the old servers survived... can never find anyone to play it with like I used to. However, its true in that if you join an empty server, people will come forth, so its basically a matter of who makes the first move.

+4 votes     reply to comment
Guest Jan 30 2015, 12:14pm says:

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TheGamerErinomc Jan 14 2015, 2:29pm says:

are you able to use this for splitscreen (sorry if this is a stupid question :\)

+1 vote     reply to comment
Yoshii_FIN Feb 3 2015, 11:41am replied:

Nope, many games in PC doesn´t have splitscreen anyway :/

+1 vote     reply to comment
Guest Dec 1 2014, 3:57pm says:

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KOYK_GR Nov 29 2014, 4:28pm says:

ok i got a very cool idea!!!
imagine to be able to "reverse engineer" a turret,hoper mine,man hack by using your gravity gun and be able to add them in your inventory for deployment!
if a player got 10hp left then start a bullet time (server option)
for like 30 secs or so.with some action music

plz if you find my idea cool up vote or better COMMENT on it! thanks!

0 votes     reply to comment
Gleb_AA-Gun Nov 21 2014, 11:22pm says:

The things I at least have hope for in the next version are, obviously SteamPipe Fix, Healing giving points, dynamic lights (more easy for me to convince a friend to make maps to OC), and the best of all in my head... Dual Wield xD

Still, wish that every month you could post a update on how it's going, like very simple update, on OC's main page or Moddb, just so people can see that the mod is alive and going ahead.

+2 votes     reply to comment
HeadCrabD Dec 14 2014, 3:54am replied:

Thanks For your advise. And dont forget to check the Dev blog 1#. there have a lot fix. include Healing give points. Projecttexture Fix.

+1 vote     reply to comment
striker139 Nov 19 2014, 9:01am says:

Will the new HOTFIX include BLACK MESA?

+1 vote     reply to comment
HeadCrabD Nov 21 2014, 10:53pm replied:

No. They still hardly working on other stuffs for next version

+1 vote     reply to comment
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Release Date
Released Jul 2008
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615 votes submitted.

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Highest Rated (8 agree) 9/10

Nice option, almost perfect co-op mod and with a lot more options than Synergy. You should try it. :D

Dec 3 2010, 12:25pm by Killer_man_1996

First Person Shooter
Multiplayer & Co-op

Latest tweets from @obsidianmod

RT @Nomaanism: My attempt at introducing @SlackHQ to my coworkers. T.co

Jun 25 2015, 3:33pm

We just posted some news: Breaking the silence T.co T.co

Oct 8 2014, 12:53am

We just posted some news: Breaking the silence T.co

Oct 8 2014, 12:41am

@ViralHatred Donations are always welcome, tough we can't promise updates, we'll announce an update when it's ready tough...

Sep 9 2014, 2:11pm

@Mryayayify maybe, maybe not, no one really knows

Jul 27 2014, 4:46am

If you want to know what's happening with the YaS server, follow @YaSOnline_ ;) ^NC

Jun 26 2014, 2:30am

@Mryayayify good question, too bad that probably no one has the answer currently...

Apr 30 2014, 6:05pm

RT @BlackMesaDevs: Black Mesa - coming soon to Steam! T.co

Nov 20 2013, 2:17am

looks like T.co is back online, was a tough one to fix :/ -Neico

Oct 13 2013, 8:24am

RT @neic0: YaS will be down to maintenance in 10 min, it'll take around 2 hours

Oct 11 2013, 8:51pm

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