Synergy is a Half-Life 2 co-opertive multiplayer modification.

We have evolved from multiple mods (DC Co-op 2, Dev Co-op and Tim-Coop). This modification strives to give Half-Life players a true Half-Life 2 cooperative experience.

The mod features our own levels and the ability to play the Half-Life 2, Episode One and Episode Two campaigns cooperatively.

In addition, you can add more content by installing third-party mods, such as ROCK 24 and MINERVA: Metastasis, then playing them in Synergy!

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Synergy Update #44

2 years ago News 5 comments

Hello everyone, it's been a while!I have some good news! We have some new development team members to introduce you to. Please officially welcome Travis (Krazy Kasrkin), Edfake and Patrick! They will be working on the various things with Synergy, including the code and maps.
What this means for you is: more updates and more development.We have a changelog ready for you all, which you can see here: Change Log - 44.We do have 2 screenshots to show you as well. We've added another vehicle type, which Fury_161 has created based on the original Buggy. Edfake has updated the scoreboard, with more changes planned. We're looking at figuring out a scoring system as well. Anyway, take a look below:

Also, we've finally returned some of the favourite Synergy content from before the 'OrangeBox' version! Please welcome back kilgore's maps, the Gargantua, the Combine Pulse Rifle and the MP5K weapons!
The following maps have been put back where they belong: syn_Apprehension, syn_DeadSimple, syn_FogIsland and syn_Forgotten_EvilsWe have some interesting things planned for next year, so stay tuned!
Happy Holidays from the entire Synergy Team!

If you do not have Synergy installed on Steam, you can do this by clicking on the following link: Run

Have fun!

Synergy Version 28 Live

Synergy Version 28 Live

4 years ago News 2 comments

Another update for Synergy! New characters for Donors and many bug fixes!

The FINALLY!!1 Update

The FINALLY!!1 Update

4 years ago News 16 comments

Finally! Actual UPDATE to Synergy, the cooperative mod for Half-Life 2!

Oh, yeah! remember that mod?

Oh, yeah! remember that mod?

4 years ago News 11 comments

Yeah, We are back. This time its actually working out between team members and everything is looking up.

"Still Alive..."

"Still Alive..."

5 years ago News 17 comments

A small update released that includes an updated map.

Post comment Comments  (30 - 40 of 418)
gabrifs Dec 11 2012 says:

Can i play this mod with Team Fortress 2 only??

+2 votes     reply to comment
LeonardoW Dec 13 2012 replied:

no, you need at least hl2, ep1, and ep2.

+2 votes     reply to comment
VOSK Creator
VOSK Sep 4 2013 replied:

Half-Life 2 should suffice for the current Steam released version.

+1 vote   reply to comment
FakeZapata Sep 23 2012 says:

Next version of this mod i want coop in bm:s

+3 votes     reply to comment
VOSK Creator
VOSK Dec 24 2012 replied:

We're looking into it.

+2 votes   reply to comment
FakeZapata Aug 15 2012 says:

would be nice with working half life source

+3 votes     reply to comment
sitrumvodoi Jul 26 2012 says:

i got a problem ,when i launch synergy on steam it appeared something lik this:
engine error
synergy requires a registered copy of HALF-LIFE 2 installed on this steam account to funtion correctly

help , i hope someone can help me

+2 votes     reply to comment
Dejected-Angel Oct 5 2012 replied:

Try reinstalling both game and mod.

+1 vote     reply to comment
Captain_Hell_Knight Aug 4 2012 replied:

Do you have Half-Life 2 on Steam?

+2 votes     reply to comment
sitrumvodoi Aug 4 2012 replied:

hl2 required

+2 votes     reply to comment
Captain_Hell_Knight Aug 18 2012 replied:

Then I don't know.

+3 votes     reply to comment
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Half-Life 2
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Release date
Released 2007
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399 votes submitted.

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Highest Rated (4 agree) 7/10

Synergy was once the best Coop mod out there. Before it went to steamworks.

Before it went to steamworks it had awesome maps, badass new guns, custom player models, lots of other things, but then they went to steamworks and it unfortunately got bad. They ripped everything off it and left the custom player models just to donators.

The only thing I still like in this game is the "Trials" pack of maps. Only good thing left in it.

Apr 10 2010 by xXMaNiAcXx

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2 years ago
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