Sven Co-op is a co-operative game originally based around Valve Software's Half-Life. In this game players must work together against computer controlled enemies and solve puzzles as a team.
User reviews:
Very Positive (339 reviews) - 91% of the 339 user reviews in the last 30 days are positive.
Very Positive (7,473 reviews) - 89% of the 7,473 user reviews for this game are positive.
Release Date: Jan 19, 1999

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Recent updates View all (22)

January 27

Windows XP Support Ending

I'd like to ask if anyone still plays Sven Co-op on Windows XP, and if so, why?

Microsoft ended support of Windows XP on April 8th, 2014. As such, Microsoft is no longer releasing updates or fixes for the OS.

In newer versions of Microsoft's Visual C++ compiler (VS 2015 and up), players running Sven Co-op under Windows XP will experience a crash. It's something we experienced a while back in build 986278 and corrected by reverting to an older version C++ compiler for build 997953 and later.

Unfortunately, some new features we're working on mandate an upgrade to our toolchain. We're caught between a rock and a hard place.

If you check out the Steam hardware / software survey ( ), the refreshing point is that most players won't be affected by this problem. Windows XP is only about 1.14% of the player base.

Are you affected? Please share your thoughts below!

183 comments Read more

January 22

Sven Co-op Update Released [Build 1583289]

An update for Sven Co-op has been released. If you are running a dedicated server please use SteamCmd to update your servers.


Unfortunately the list is too long to post. You can find the full change log on our news.

Version details

Steam build ID numbers: Game 1583289, dedicated server tool 1583292, SDK tool 1583293.

Please use the steam build ID number as a reference when posting an issue or query on our message boards. You can find the build number you currently have within Steam by right clicking our game or tools, selecting Properties, then selecting the Local Files tab.

16 comments Read more


“...quite possibly the best Half-Life mod of all time.”

About This Game

Sven Co-op is a co-operative game originally based around Valve Software's Half-Life. In this game players must work together against computer controlled enemies and solve puzzles as a team.

While Sven Co-op is similar to Half-Life with similar weapons, monsters, and characters, the difficulty has been increased to suit team play.

Sven Co-op's levels are set as missions and are generally separate from each other. Many missions span several maps and some are collected together in a series. The aim of most levels is to reach the end or to achieve an objective -- obtaining a high score is not essential to beat a level, it's just part of the fun.

System Requirements

    • OS: Windows® XP (32 or 64 bit)
    • Processor: 1 GHz single core processor
    • Memory: 512 MB RAM
    • Graphics: 64MB video card capable of using OpenGL 2.1
    • DirectX: Version 9.0c
    • Network: Broadband Internet connection
    • Storage: 2 GB available space
    • Additional Notes: Some additional tools require .NET framework 3.5 or later. 3rd party content will require varying additional disk space.
    • OS: Windows® 7/8/10 (32 or 64 bit)
    • Processor: 2 GHz dual core processor
    • Memory: 2 GB RAM
    • Graphics: 128MB video card with pixel shaders and great OpenGL 2.1 support
    • Network: Broadband Internet connection
    • Storage: 4 GB available space
    • Additional Notes: Dual-core processor will improve performance of the sound and particle modules.
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Very Positive (339 reviews)
Very Positive (7,473 reviews)
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