All Games > Free To Play Games > Synergy
Community Hub
Synergy
Synergy enables you to play through the Half-Life 2 series and many other singleplayer Source Mods cooperatively with friends.
Recent Reviews:
Very Positive (58) - 84% of the 58 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (10,009) - 90% of the 10,009 user reviews for this game are positive.
Release Date:
Sep 1, 2005
Developer:
Tags
Popular user-defined tags for this product:
+

Sign in to add this item to your wishlist, follow it, or mark it as ignored

Curator Review

Recommended
By Angry-Mob January 26, 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
View all

What Curators Say

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

Customer reviews for Synergy

Review Type


Purchase Type


Language


Customize
Date Range
To view reviews within a date range, please click and drag a selection on a graph above or click on a specific bar.

Show graph



Playtime
Filter reviews by the user's playtime when the review was written:



No minimum to No maximum

Display
Show reviews in selected display order





Learn More
Show graph
 
 Hide graph
 
Filters
Excluding Off-topic Review Activity
Playtime:
Played Mostly on Steam Deck
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...