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Multiplayer mods for Half-Life 2

MPShift lists 2 multiplayer mod projects for Half-Life 2. Compare Online multiplayer, LAN, player counts, development stages and links to the original projects.

2 projects listed

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Listed multiplayer mod projects

  1. Synergy

    Shown first by catalog status – not a stability test

    Play the Half-Life 2 campaign cooperatively online.

    ReleasedPublicly availableFrom 2 players; maximum not confirmedOnline multiplayerLANSteam
    Source last checked: 2026-10-24
    Visit original mod project ↗

  2. Obsidian Conflict

    Co-op framework for Half-Life 2 and its episodes, alongside purpose-built cooperative maps.

    BetaPublicly availableFrom 2 players; maximum not confirmedOnline multiplayerSteam

    Legacy public download is Beta 1.35 with mount fixes. Install and mount the games whose campaigns you want to play. Do not confuse it with the separately announced newer Steam version.

    Source last checked: 2026-10-24
    Visit original mod project ↗

Information is based on public project sources, not hands-on game testing. Availability and compatibility can change. MPShift does not host mod files.