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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RSS Articles

Hello Half-Life/Hard-Life/Synergy fans,

Sorry about the long wait for updates, Schedules have not been friendly over time yet fury_161 has taken some time out to show our current "Office Complex" chapters shown in a YouTube video below.



Consider joining our community and discussing openly any opinions that you may have. We are all aware that changing Half-Life may not be everyone's cup of tea. This mod may not be for everyone but those who appreciate our outlook are more than welcome.


Our changelog is extremely extensive and is not publicized. Every other night I take time to program with our other team members. Getting results is a bit more important than updating a log with minor improvement features.

Synergy Update #44

Synergy Update #44

News 5 comments

Updates to Synergy have been made public on Steam! Version #44 is out! Old Synergy content has been restored!

Synergy Version 28 Live

Synergy Version 28 Live

News 2 comments

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

The FINALLY!!1 Update

The FINALLY!!1 Update

News 15 comments

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

Oh, yeah! remember that mod?

Oh, yeah! remember that mod?

News 11 comments

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

RSS Files
Half life 2 Update HD Textures

Half life 2 Update HD Textures

Texture 29 comments

This is a HD, 2k & 4k Texture pack for Half-Life 2, Half-Life 2 Update, Episode 1& 2 and Synergy. There are approximately (i lost count) 140 textures...

Half-Life 2: Synergy R1.1 Full Install

Half-Life 2: Synergy R1.1 Full Install

Full Version 5 comments

The latest full Synergy package.

Synergy Beta 2.6 to Release 1.0

Synergy Beta 2.6 to Release 1.0

Full Version 1 comment

This will update the Synergy mod from the latest beta to the official (non beta) 1.0 release.

Comments  (0 - 10 of 428)
eyeling
eyeling - - 106 comments

Terrible mod. Synergy fans have deluded themselves into thinking it was ever good. It wasn't. It always sucked ***. Go play Obsidian Conflict instead.

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Guest
Guest - - 692,114 comments

This comment is currently awaiting admin approval, join now to view.

i_love_old_hardware
i_love_old_hardware - - 39 comments

says the natsuki pfp guy

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conclu01
conclu01 - - 1 comments

Tried Obsidian Conflict cause of your comment, tested it out, and got disappointed.

I think I'll stick to Synergy.

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sandwichconsumer
sandwichconsumer - - 1 comments

get a grip

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Guest
Guest - - 692,114 comments

Bro chill, I dont think there should be a reason to hate Synergy. Its simply Half-Life 2 but Coop, and it does a great job on that.
But I havent played Obsidian Conflict yet so I shouldnt blame you yet. Do you hate Synergy because Obsidian Conflict has more interesting features?

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eyeling
eyeling - - 106 comments

I hate it because of 2 reasons. 1: the mod just sucks, and doesn't deserve the level of popularity it has. The maps look like they were made by 9-year-olds, there is a lack of new features, the mod is horribly unbalanced for any less than 4 players, and much more. 2: Unnecessary donation begging. The mod is not nearly good enough to deserve donations. Not to mention you can't even get donation perks because they were only handed out during updates. And since the last update was in 2019, you can't get them anymore.

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Guest
Guest - - 692,114 comments

I understand your opinion.
You did mentioned actual flaws from the mod, the original maps are extremely poor in terms of design and its a pain in the neck to beat the game if there's not enough players, bust there's some reasons why its still popular:
1. There are many community servers like Friendly Crowbar that try to enrich the experience with chat commands, ally npcs like headcrabs or combine soldiers, as well as having additional free skins that you can gets in the workshop.
2. About the unbalanced thing, I bet it was definetly made for lots of players on the same server, but there's an option when hosting a server called Vintage Mode, which disables that completely. Sure its not enabled on the community servers, but it's there in case you want to host with a friend.
3. I think the main reason why its so popular is because its available on Steam as a free HL2 mod, which makes it the easiest way to play HL2 but coop. And I know, Obsidian Conflict is also on Steam, but it's still not available in there. Sure its pretty easy to download OC thought ModDB, but it's far easier on Steam.

I did saw some of the features OC has and they were interesting. In fact, I tried the game one time, but when I looked at the server browser, there was literally nothing, so I uninstalled it along with some other mods to have some free space in my computer.

Personally, I'll stick with Synergy since it's just seamless HL2 coop, plus I have played it for about five months and I got used to these flaws, and if you prefer OC, that's not bad.

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AIEismаschine
AIEismаschine - - 84 comments

Мертвая модификация, большая часть серверов пустует, а те ,что имеют онлайн держатся на 4 игроках максимум.

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yourbread
yourbread - - 1 comments

is that possible to play half life 2 mod with synergy? (like playing mmod, overcharged or nightmare house, etc. with synergy? coop of course)

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