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) to offer you the greatest co-op experience. 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 co-operatively. In addition, you can add more content by installing third-party mods, such as ROCK 24 and MINERVA: Metastasis, then playing them in Synergy!

Review RSS Feed minmi96 says
1 minmi96

Aug 3rd, 2011 0 people agree 2 people don't


Counter_The_HL_Guy says
8 Counter_The_HL_Guy

Jul 15th, 2011 0 people agree 1 person doesn't

This is look like a SC but for HL2, :D.

Portal2580 says
1 Portal2580

Jul 12th, 2011 0 people agree 1 person doesn't

WTF where is mod?

mrjackv says
10 mrjackv

Jan 17th, 2011 1 person agrees 1 person doesn't

Very good, I had quite a lot of fun with this mod and with steam support all my friend can join and we can kick some combine *** toghether. Probably one of the must-have mods for Half-Life 2

Randomguy7 says
10 Randomguy7

Nov 11th, 2010 1 person agrees 1 person doesn't

great game with a medium-sized community. Not as many user-submitted maps as it's hl1 predecessor and a way more grown-up community. has a few crashes here and there, but all in all it's a fine way to spend your evening.


May 30th, 2010 0 people agree 1 person doesn't

The best Coop game i've ever played, in the previous versions, of course.

TrashCan-Man23 says
1 TrashCan-Man23

Jul 5th, 2011 1 person agrees 2 people don't

I feel that maybe if the Synergy teamed up with the makers that created Sven Co-op, they might have created something a lot better than this half-assed co-op mod.

I am sorry, but this just feels incomplete.

Dune_Jumper says
8 Dune_Jumper

Dec 8th, 2014

No review provided

FEARPointManOperativ says
8 FEARPointManOperativ

Aug 26th, 2014

No review provided

Capt.Host says
10 Capt.Host

Jul 27th, 2014

No review provided

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