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Synergy
Synergy enables you to play through the Half-Life 2 series and many other singleplayer Source Mods cooperatively with friends.
Recent Reviews:
Mostly Positive (145) - 77% of the 145 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (10,100) - 90% of the 10,100 user reviews for this game are positive.
Release Date:
1 Sep, 2005
Developer:
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Curator Review

Recommended
By Angry-Mob 26 January, 2016

“HL2 coop, what more can i say?”

Features
Languages:
Interface Full Audio Subtitles
English ✔ ✔ ✔
French ✔ ✔ ✔
Italian ✔ ✔ ✔
German ✔ ✔ ✔
Spanish - Spain ✔ ✔ ✔
Danish ✔
Dutch ✔
Korean ✔ ✔ ✔
Portuguese - Portugal ✔
Russian ✔ ✔ ✔
Simplified Chinese ✔ ✔ ✔
Traditional Chinese ✔ ✔ ✔
See all 12 supported languages
Includes 1 Steam Achievements

Community-Made Mod

This game requires that you own Half-Life 2.

Click here to learn more about mods on Steam.

Install Synergy

Half-Life 2 Mod

Free
 

About This Game

Synergy is a simple Half-Life 2 Modification (Mod) that enables you to play through the Half-Life 2 series and many other 3rd-party campaigns cooperatively with friends.

System Requirements

Windows
macOS
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
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.
    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
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.
    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
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What Curators Say

120 Curators have reviewed this product. Click here to see them.

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