Synergy enables you to play through the Half-Life 2 series cooperatively with friends. Supported Games: Half-Life 2 (required) Half-Life 2: Lost Coast Half-Life 2: Episode One Half-Life 2: Episode Two Calamity City 7: Toronto Conflict Dangerous World MINERVA: Metastasis Offshore Riot Act Rock...
User reviews: Very Positive (1,619 reviews)
Release Date: 1 Sep, 2005

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Community-Made Mod

This game requires that you own Half-Life 2.

Play Synergy

Half-Life 2 Mod

 

About This Game

Synergy enables you to play through the Half-Life 2 series cooperatively with friends.

Supported Games:

System Requirements

Windows
Mac OS X
SteamOS + Linux
    Minimum
    OS: Windows® 7 (32/64-bit)/Vista/XP
    Processor: 1.7 GHz Processor (Requires support for SSE2)
    Memory: 512MB RAM
    DirectX: DirectX® 8.1
    Hard Drive: 1 GB available space
    Sound Card: DirectX Compatible
    Network: Broadband Internet connection
    Recommended
    OS: Windows® 7 (32/64-bit)/Vista/XP
    Processor:Pentium 4 processor (3.0GHz, or better) (Requires support for SSE2)
    Memory: 1GB RAM
    DirectX: DirectX® 9
    Minimum
    OS: OS X Mountain Lion 10.8
    Processor: 1.7 GHz Processor
    Memory: 1GB RAM
    Graphics: NVIDIA GeForce 8 or higher, ATI X1600 or higher, or Intel HD 3000 or higher
    Hard Drive: 1 GB available space
    Network: Broadband Internet connection
    Minimum
    OS: Ubuntu 12.04, SteamOS
    Processor: 1.7 GHz Processor
    Memory: 1GB RAM
    Graphic Card: NVIDIA GeForce 8 or higher, ATI X1600 or higher, or Intel HD 3000 or higher
    Hard Drive: 1 GB available space
    Sound Card: OpenAL Compatible Sound Card
    Network: Broadband Internet connection
Helpful customer reviews
50 of 50 people (100%) found this review helpful
172.2 hrs on record
Posted: 18 June
Synergy is a a co-op Half Life 2 multiplayer mod. Its kinda like the other mod for Half Life 1 called "Sven Co-op", Synergy does a better job at debugging the levels for multiplayer such as an elevator that only goes down, the mod will teleport all players to the elevator so nobody gets left behind. This mod can play on custom maps and and other mods making it never get boring (unless you keep replaying the same story. Thats my review on Synergy, its a great mod you guys should get it, 8.5/10 for me.
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23 of 25 people (92%) found this review helpful
6.0 hrs on record
Posted: 16 October
Half-Life 2 + Co-op = Epic
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16 of 16 people (100%) found this review helpful
83.9 hrs on record
Posted: 10 November
Play HL2 maps with your friends. It's like HL2 except multiplayer. It's like GMOD except without the 10 minute loading times
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16 of 16 people (100%) found this review helpful
14.8 hrs on record
Posted: 25 October
Well/\........I dont know where to begin......this game is the symbol of anarchy....if you have half life 2 GET THIS GAME. Synergy is a game about just playing half life with your friends, but no, its not even that. IT IS CHAOS IN A GAME. First time I played this I was in a game with 16 players. Mainly it was about getting to the end of the level as fast as possible doing whatever it takes. Its not as easy as you think though, YOU WILL DIE MANY TIMES. Me and a few random players started rushing through the game, if we met a antlion guard, we would beat it down with crowbars then fire rockets at it. We would cover the map in our own sprays while spamming mics and killing ourselves. Running full-steam ahead into a pile of combine and all of us dueling out with crowbars. Out of all of it my favorite map would be Highway 17 or Nova Prospect. The only problem I have with this game is how Hectic it is, Even though its fun at times it can still be horrible trying to walk across a single plank without being pushed off, or lose your partner and attacked by a horde of Zombbombs. Also the crashing os horrible ;(. Extras:Wanna good song to listen to while playing? Sonic X theme song
Also the community is derranged: One server at night I went in had 7 guys
and 3 women talking about politics while attacking Combine.
Another one had a bunch of kids crying over getting killed XD

10/10 STILL PLAYING AGAIN
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35 of 55 people (64%) found this review helpful
4.1 hrs on record
Posted: 12 June
THE HAX GOT ME IN THIS GAME

11/10
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10 of 10 people (100%) found this review helpful
3.7 hrs on record
Posted: 15 November
Its like HL2 but without the "alone" feeling
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9 of 9 people (100%) found this review helpful
1.8 hrs on record
Posted: 7 November
A really well made mod for Half-Life Co-Op. It breathes some new life into the almost 10 year old game.
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7 of 7 people (100%) found this review helpful
23.0 hrs on record
Posted: 15 June
This mod for Half-life 2 is suprizingly more fun than you would expect 8.5/10

my favorite part is the coast
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6 of 6 people (100%) found this review helpful
29.5 hrs on record
Posted: 1 November
♥♥♥♥ing awesome bro
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6 of 6 people (100%) found this review helpful
9.2 hrs on record
Posted: 15 November
5/5
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6 of 6 people (100%) found this review helpful
11.1 hrs on record
Posted: 20 November
Multiplayer HL2. Can you explain much more?
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7 of 8 people (88%) found this review helpful
344.6 hrs on record
Posted: 5 November
Half Life 2 and GTA: San Andreas have a few things in common - they're both single player, they were both released in 2004, they're two of the best games ever made, but best of all: they both had communities which were technically capable of creating multiplayer experiences. GTA SA has Multi Theft Auto and HL2 has Synergy!

As well as being able to experience the whole HL2 story with your friends you're able to play a variety of other co-operative maps and you can even make one yourself with Hammer. Like any modification though, Synergy is not perfect. Server stability was bad and there are some annoying bugs like not being able to pickup ammo. But these problems won't stop you from experiencing a co-operative HL2 campaign.
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6 of 7 people (86%) found this review helpful
11.0 hrs on record
Posted: 27 June
HL2 coop with friend, awesome :)
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9 of 13 people (69%) found this review helpful
93.4 hrs on record
Posted: 20 November
Half Autism: Episode 3
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4 of 4 people (100%) found this review helpful
17.7 hrs on record
Posted: 20 June
Half-Life 2 is more fun with friends! ^ ^

Has some bugs. Nothing you can't get over though.
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4 of 4 people (100%) found this review helpful
0.4 hrs on record
Posted: 25 October
Isn't a bad mod for hl2. Really enjoyable and fun.
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4 of 4 people (100%) found this review helpful
1.4 hrs on record
Posted: 1 November
While a bit buggy, a great game for people who love co-op, but want to play HL2
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4 of 4 people (100%) found this review helpful
16.2 hrs on record
Posted: 8 November
Cool mod. Adds vehicles, weapons, and co-op to an already great game.

10/10 LET ME DRIVE THE JEEEEEEEP!
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5 of 6 people (83%) found this review helpful
4.6 hrs on record
Posted: 2 November
YAY! Me and my friends can die together by clutch crabs!
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6 of 8 people (75%) found this review helpful
18.9 hrs on record
Posted: 2 October
Multiplayer Half-life 2, what you want more ?
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