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

  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
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    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • 1
    Ur-Quan Masters HD

    Ur-Quan Masters HD

    Ur-Quan Masters High Definition

    Ur-Quan Masters HD Mod. An HD remake of Star Control 2. It's the full Ur-Quan Masters game but also featuring a high resolution mode, new features, & new artwork.
    Leader badge
    Downloads: 71 This Week
    Last Update:
    See Project
  • 2
    Planet Bounce

    Planet Bounce

    Planet Bounce game for Windows

    An action packed multiplayer space combat game for up to 4 players. Play co-op in 4 unique game modes. Fly your space ship through the atmosphere bouncing off planets. Fire special weapons to annihilate your opponents. NEW Version 3.0 features a single player Campaign, dynamic weapon recoil, and destructible planets! This is an addictive simple and great space combat game for all ages.
    Downloads: 4 This Week
    Last Update:
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  • 3
    Downloads: 2 This Week
    Last Update:
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  • 4
    Digital Paintball 3

    Digital Paintball 3

    3D FPS Digital Paintball 3 Multiplayer Online Game

    Digital Paintball 3 is a first person shooter (FPS) game available on Web, PC, Mac and Linux. Conflate your love for simulated sport with adventure, and what you will get is the best 3D, digital paintball 3 video game of all times! You can enjoy endless hours of pure joy and an assured excitement that gradually mounts without leaving the sanctity of your home or braving the detestation of getting wet or dirty. The new online game that we have developed so punctiliously is sure to leave you regaling to the extent that you will soon be hooked to it. One of the fastest paced multiplayer digital paintball, Paint-ball Online is a super way to exercise your mental prowess, hand-eye coordination, concentration, Digital Paintball 3 Online analytical knack, quick decision-making capabilities, and of course, your love digital paintball 3 for the actual sport. Carry the power in your hand, register at our site and feel the blues blow away.
    Downloads: 0 This Week
    Last Update:
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  • Try Google Cloud Risk-Free With $300 in Credit Icon
    Try Google Cloud Risk-Free With $300 in Credit

    No hidden charges. No surprise bills. Cancel anytime.

    Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
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  • 5

    Dominion of the Sword

    Medieval 2: Total War - Kingdoms Modification

    Dominion of the Sword is a Medieval 2: Total War total conversion supermod that aims to recreate the medieval era with an emphasis on historical accuracy and gameplay.
    Downloads: 0 This Week
    Last Update:
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  • 6

    JungTimer

    a simple timer for the jungle in League of Legends

    Keeps track of respawn times of jungle mobs in League of Legends (including dragon and Baron) so you don't have to!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7

    LetsPlay Bukkit plugin

    LetsPlay is a bukkit plugin.

    This plugin is designed for the minecraft community LetsPlay.nu. It contains several gamemodes like "Hunger Games", "Capture the Block" and "Diggy Diggy".
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8

    MCKami Classic Minecraft Server Software

    Non-Java Minecraft Classic Server Software

    Non-Java Minecraft Classic Server Software
    Downloads: 0 This Week
    Last Update:
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  • 9
    PotBS Econ Manager

    PotBS Econ Manager

    A economic manager for the game Pirates of the Burning Sea

    Downloads: 0 This Week
    Last Update:
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  • Application Monitoring That Won't Slow Your App Down Icon
    Application Monitoring That Won't Slow Your App Down

    AppSignal's Rust-based agent is lightweight and stable. Already running in thousands of production apps.

    Full APM with errors, performance, logs, and uptime monitoring. 99.999% uptime SLA on the platform itself.
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  • 10
    SuperLauncher is an alternative launcher for Minecraft
    Downloads: 0 This Week
    Last Update:
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  • 11

    drag0nius' Diablo 3 DpS Calculator

    Damage calculator and items comparison tool for Diablo 3

    Fully featured, standalone & platform-independent Java (JRE6) damage calculator/items comparison tool for Diablo 3. Be sure to check https://sourceforge.net/p/d3dpscalc/wiki/Home/ before asking questions. Language file is available, possible to include any language as long as somebody provides me with translation. Currently supported: - English - Polish
    Leader badge
    Downloads: 0 This Week
    Last Update:
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