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

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RSS Articles

15 years of Obsidian Conflict


15thanniversarybanner


On this day, fifteen years ago, the first version of Obsidian Conflict was released to the public. It all began when the original founders Skidz and Hyperjag3 wanted to create a co-op mode for Missing Information, which quickly turned into its own project, Obsidian Conflict.

Since then, several versions ensued, each one fixing previous bugs and creating new features. People came and went, the engine got game-breaking updates and new challenges were faced, but the spirit of playing together with your friends remained constant.
In case you are interested about the mod’s origins, you can read the original article written for the 7th anniversary here.

Freezing Point, 2006


Deadland, 2006


While development has been quite bumpy in recent years (including a development pause between 2015 and 2017), we keep working hard for our fans and in our compromise to finish what our founders intended: releasing on Steam.


Development remains slow as our team keeps being tied up with real life events, but even with such reduced speed, progress is being made. So far, testing on Steam has drastically improved the ability to test, and finishing the new content mounting system is the last bottleneck that impedes us before we can begin with the closed beta.
We are still confident that we can get started with it this year, and if everything goes well, maybe even release, but time will tell.

oc stitches 020000Stitches 2, 2021


oc diving0002

Diving, 2021


As a closure, we are still accepting new team members. We are also seeking to expand our moderator team in preparation for the closed beta and the release. Of course, contributors are also welcomed as well if you prefer to help out without being anchored to the mod for extended periods of time.
If you are interested, please apply using our new application form.

2020 winter update

2020 winter update

News 6 comments

Let's take a look at how 2020 turned out for Obsidian Conflict.

Obsidian Conflict 2020 mini media update

Obsidian Conflict 2020 mini media update

News 6 comments

After the summer media update, we kept working on the internals of the mod and at this point, almost all the big bugs like game crashes are gone. With...

Obsidian Conflict 2019 summer update

Obsidian Conflict 2019 summer update

News 9 comments

For those who aren’t present in our Discord, you might be wondering what happened during the last nine months. Why have we returned to radio silence...

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!

RSS Files
OC 1.35 Unofficial Mountfix (Full installer)

OC 1.35 Unofficial Mountfix (Full installer)

Full Version 26 comments

Full installer, installs 1.35 plus hotfix and does the mountfix automatically. For detailed instructions, check the mountfix post. (File updated 14.07.2022...

OC 1.35 Unofficial Mountfix (Mountfix only)

OC 1.35 Unofficial Mountfix (Mountfix only)

Patch 2 comments

Stand-alone mountfix, for existing installations. For detailed instructions, check the mountfix post. (File updated 17.07.2022)

[OBSOLETE] Obsidian Conflict 1.35 Hotfix #1 (Client)

[OBSOLETE] Obsidian Conflict 1.35 Hotfix #1 (Client)

Patch 13 comments

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

[OBSOLETE] Obsidian Conflict 1.35 Hotfix #1 (Server)

[OBSOLETE] Obsidian Conflict 1.35 Hotfix #1 (Server)

Server 1 comment

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

[OBSOLETE] Obsidian Conflict 1.35 Full Installer

[OBSOLETE] Obsidian Conflict 1.35 Full Installer

Full Version 96 comments

!!THIS INSTALLER IS OUTDATED AND DOES NOT COME WITH THE REQUIRED FIXES!! We advise just downloading "OC 1.35 Unofficial Mountfix (Full installer)" instead...

[OBSOLETE] Obsidian Beta 1.34 Full

[OBSOLETE] Obsidian Beta 1.34 Full

Full Version 27 comments

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

Comments  (0 - 10 of 776)
Itssayf
Itssayf

Now let me get one thing clear, does this mod require the original half life 2? Or is it non-steam? Please do answer as quick as possible because I am in such a rush to play with my friends.

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Catie
Catie

Yes it does require Half-life 2.

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User537
User537

When is the steam version coming out? I remember I saw this on steam saying "soon" back in 2020

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Daburubareru
Daburubareru

When it's done

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OppulentHertz
OppulentHertz

It's anyone still play this? i download this every server got empty player

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Daburubareru
Daburubareru

Yes the mod it is still ''active'', they have a discord server.

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kigmaste123
kigmaste123

Норм)))

Reply Good karma Bad karma+1 vote
defcon98
defcon98

Looking forward for what's coming next.

Reply Good karma Bad karma+4 votes
Manguydudehomie
Manguydudehomie

Is this being worked on anymore?

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Neico Creator
Neico

Yes, join our discord if you want to get involved with the team and what's happening between the news articles.

Reply Good karma+2 votes
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Twitter

Latest tweets from @obsidianmod

Happy 15th birthday, Obsidian Conflict! 🎉🎉🎉 Moddb.com T.co

Jul 24 2021

RT @ColdVander: @ObsidianMod I made something idk if it looks good but I like it and can't wait for steam release of the mod 🙃 T.co

Jan 13 2021

Just before 2020 is over, we published a new media update detailing on what happened on this year… T.co

Dec 26 2020

We aren't dead! Like everybody else, COVID-19 has affected us as well but work is still going on. While we plan to… T.co

Oct 9 2020

Whomobile did a great video of Diving ( plus a glimpse of the recently discovered version 10, which was never relea… T.co

Apr 22 2020

Obsdian Conflict 2020 mini media update Obsidianconflict.net T.co

Feb 4 2020

Obsidian Conflict 2019 summer update Obsidianconflict.net Youtube.com

Aug 2 2019

Happy Pride Month! T.co

Jun 2 2019

It has been five months since we announced our comeback, let us show you what we've been working on since then!… T.co

Oct 28 2018