Action
Shooter
Massively Multiplayer
Synergy (Half-Life 2 Co-op)
Synergy is the Half-Life 2 cooperative modification that enables you to play with others through Half-Life 2 and it's episodes (Episode 1 and 2), as well as our own levels. You may also install other third-party mods, such as MINERVA: Metastasis and ROCK 24, to also play them cooperatively with other players. Synergy tries to maintain the true Half-Life 2 gameplay, while still adding in our own unique ideas.
Action
Shooter
Massively Multiplayer
Synergy (Half-Life 2 Co-op)
Synergy is the Half-Life 2 cooperative modification that enables you to play with others through Half-Life 2 and it's episodes (Episode 1 and 2), as well as our own levels. You may also install other third-party mods, such as MINERVA: Metastasis and ROCK 24, to also play them cooperatively with other players. Synergy tries to maintain the true Half-Life 2 gameplay, while still adding in our own unique ideas.
FAQ
Where can I buy the game?
You can purchase the game directly from the available links on this page, including official stores and authorized platforms.
How do I know when in-game items or DLC become available?
Where can I follow updates about the game?
You can follow the game’s official social media channels, website, or join its community platforms like Discord or Reddit. Important updates will also be shared here on Xsolla Mall.
Is this game available on my platform?
Supported platforms and other game details are listed on the game page. If you don’t see your platform, it may not be supported yet.
Are there any special editions or bundles?
If available, special editions and bundles will be listed under the purchase section on the game page.
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All rights reserved, 2026. This site uses cookies.