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.

Post download Report content Obsidian Beta 1.34 Full
Full Version
Dec 27th, 2008
385.73mb (404,465,082 bytes)
17,228 (1 today)
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Note: Only choose "Install client only" or the mod wont install properly.

Changes / Fixes

- Fixed Several crash instances.
- Fixed CSS muzzle flashes not originating from the barrel of the gun in some circomstances.
- Fixed some change team exploits.
- Fixed My Items panel not working on some resolutions.
- Fixed func_tank effects not working.
- Fixed a bug related to the merchant giving items.
- point_hurt can now have filters in hammer.
- Fixed env_embers having no default texture for older maps.
- Fixed some uzi ammo handling bugs.
- Fixed parenting not showing up on info_player_* entities in hammer.
- Changed up player spawning and corrected some bugs.
- Spectators can no longer set off hopper mines.
- Fixed Sniper and OICW sounds being played everywhere.
- Default skill has been set to 2.
- Player announcements and find players will now be disabled while in spectator.
- Player held props will now be dropped when the player leaves the server.
- Player owned vehicles will now be destroyed when the owner player leaves the server.
- Players will now be correctly removed from map vehicles when they leave the server while driving.
- Players joining a lives map in a series will spawn with extra lives on the next map if they have 0.
- Half-Life 1 wall chargers and health chargers will now change their texture to enabled or disabled depending on their state.
- Stuttering from player created beams such as sniper rifle and flashlight beams have been resolved.
- func_gravity will now correctly revert the players gravity when they leave the trigger bounds.
- The Jalopy radar will work for all jalopys now, not just the last spawned.
- Weapons selection hud element has been optimized to fit more custom weapons on screen.
- Corrected issues in spectator mode while a point_viewcontrol is active.
- Local players will now show up in point_viewcontrols.
- Changed the way how env_hudhint was reading messages (it now supports localized strings as well as plain).
- Fixed some ammocrates not showing up right


- Added Custom Icon Option to info_radar_target.
- Added Option to Enable/Disable the Hazard Lights on the Jalopy (disabled by default).
- Added convar sv_visible to let server administrators decide if they want to add the server to Valves Master Server or not (useful for Mappers that want to test their map without anyone seeing the server).
- Added maps/cfg/_particles.txt to allow custom particles (works in _modify.txt too) Format: { Particles { "file" "" } }
- Added ep1 and ep2 tags, which get's set on the server as soon as one of this content is mounted.
- Added Headlights to the Jeep.
- Added trigger_auto_crouch which is a re-creation from Left 4 Dead.
- Added ForceDrop Input to prop_physics and prop_physics_override
- Added Makrontt le necron´s tweaked css weapon scripts and weapon icons.
- Added an option to let weapon lasers/sprites use custom color's like the flashlight.

Map Updates

- Corrected some mapadd bugs.
- Replaced the old energy vortex effect in ep1_citadel_01 with a particle effect.
- Re added oc_starlight.
- Added several new mapadds for Half-Life Source.
- Updated oc_danmaku to version i.
- Added a new map, oc_antlion_attack_01.
- Added a coop mapadd mission for de_chateau.

Preview Image
Obsidian Beta 1.34 Full
Post comment Comments
Tron619 Dec 27 2008 says:

great mod i love its kinda like sven co-op for half-life 2

+9 votes     reply to comment
ALPB May 16 2010 replied:


+1 vote     reply to comment
bunya333 Dec 29 2008 buried:


lol i hope this awesome i have to many mods if my father see this mod to he say he is gonna delet 10 mods of me then i have 2 mods over OMG I REALY HAVE TO MUCH MODS :)

-19 votes     reply to comment
AlCool Mar 9 2009 replied:

I think I have more ;D

+1 vote     reply to comment
Icedecknight Feb 20 2010 replied:

pshhhh 12 mod I got over 9000!!!

+2 votes     reply to comment
JustBarney Feb 25 2010 replied:

I lost count of my mods after about 10

-1 votes     reply to comment
truenn Oct 19 2009 replied:

u say 12 is too much? i got 17

+2 votes     reply to comment
Vison9 Dec 22 2009 replied:

29 mods here. :)

+3 votes     reply to comment
LordXamot(Cavou) Apr 9 2010 replied:

I have 56 mods- all of which are for Half-Life 2 and Episode 2.
My favorite is Get a Life.

Soon, after I download Obsidian Conflict, that number will become 57.

+1 vote     reply to comment
ChaoticNeutral Feb 13 2010 replied:


+5 votes     reply to comment
ShortfuseBlizz Apr 12 2010 replied:

Got 61 mods here :P

+1 vote     reply to comment
hiddenstriker Jan 16 2009 says:

I just want to get something straight...
in the new version you said that there would be the cloaking device and grappling hook..... WHERE IS IT???!!!

overall the mod is great!!
keep working on further developments!!

+1 vote     reply to comment
FlameOfHeaven Creator
FlameOfHeaven Jan 20 2009 replied:

Those are in since 1.22, or even earlier.

+3 votes   reply to comment
ShadowWolf93 Jan 23 2009 says:

i have a proplem
when the install reach the cheat control script it f***s up
can anyone help me

+1 vote     reply to comment
FlameOfHeaven Creator
FlameOfHeaven Jan 24 2009 replied:

Choose "Install client only".

+1 vote   reply to comment
BcForCe Feb 8 2009 says:

great mod love u guys

+1 vote     reply to comment
atlas0880 Jul 8 2009 says:

sweet mod

+1 vote     reply to comment
TheUnknownM Jul 9 2009 says:

i cant download it its says 410 - gone HELP!

+2 votes     reply to comment
TheUnknownM Jul 9 2009 says:

nvm im downloading it on filefront ;l

+1 vote     reply to comment
llomellamomario Sep 15 2009 says:

Better than Synergy, but from far more bugged than Synergy... I really like that, but crashing the game and start over again... is not my style. Please, fix bugs before adding new features. Just a suggestion ;D

+1 vote     reply to comment
Callinstead09 Sep 18 2009 replied:

Oh god, don't tell me it still has that problem!!!! >8C

+1 vote     reply to comment
Callinstead09 Sep 24 2009 says:

Well I played it and expirienced no crashes

+1 vote     reply to comment
Dragoonxxxxxx Oct 13 2009 says:

I must ask, as this has happened to other game mods of mine, and I suppose I will never get to play them until it is fixed. I cannot play this and others, because it will start up, then at loading screen, it will continue loading. Then, it will exit out, and say error, could not "Read" click ok to terminate program. I reaaallyy wanna play this game so can anyone help me please? I would be extremely grateful.

+2 votes     reply to comment
Mudfugger Oct 18 2009 says:

My game freezes when loading world, im not sure what to do?.

+1 vote     reply to comment
Bobj Apr 11 2010 says:

Ok i install the client,but when i try and launch it it wants to launch source sdk. Any help?

+1 vote     reply to comment
sasuke2490 Apr 20 2010 says:

downloading now

+1 vote     reply to comment
daithimchugh May 2 2010 says:


Does this mod work over lan(mainly interested in half life 2 co-op campaign)? Finding it hard to get info on it - i saw a post that says the newer versions dont work on lan.

Is there a particular version of half life I need for this mod?

Much appreciated!

+1 vote     reply to comment
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