Browse free open source Java Multiplayer Games and projects below. Use the toggles on the left to filter open source Java Multiplayer Games by OS, license, language, programming language, and project status.

  • Fully Managed MySQL, PostgreSQL, and SQL Server Icon
    Fully Managed MySQL, PostgreSQL, and SQL Server

    Automatic backups, patching, replication, and failover. Focus on your app, not your database.

    Cloud SQL handles your database ops end to end, so you can focus on your app.
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  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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  • 1
    SuperLauncher is an alternative launcher for Minecraft
    Downloads: 2 This Week
    Last Update:
    See Project
  • 2
    Second Life Cross Sim Messaging System utilizes the Google App Engine to as the medium to send/receive and persist messages to allow prim/script communication across sims
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3

    UECraft

    This is a modpack for the Technic Launcher written from scratch

    UECraft is a modpack for the Techinc Launcher that is writen from scratch and paired with BuildCraft.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    jGameAdmin is a Java based web application, targeting Linux and Windows systems. With jGameadmin, you can easily administrate your game servers, voice servers and customers over a single and intuitive web interface.
    Downloads: 0 This Week
    Last Update:
    See Project
  • PRTG Catches Network Issues Before They Cause Downtime Icon
    PRTG Catches Network Issues Before They Cause Downtime

    Threshold-based alerts flag problems early, so your team can act before users notice, not after.

    Reactive troubleshooting usually means hearing about a problem from frustrated users, not your monitoring tool. PRTG sets threshold-based alerts across devices, servers and applications, notifying your team by email, SMS or push the moment a metric crosses a set limit. That means catching a failing disk or overloaded server before it becomes an outage and getting time back from firefighting. Start a free trial and set your first alerts today.
    Download 30-Day Trial
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