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

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  • 1
    Sunshine

    Sunshine

    Self-hosted game stream host for Moonlight

    Sunshine is an open-source self‑hosted cloud gaming server that implements NVIDIA’s GameStream protocol. Compatible with Moonlight clients across platforms, it supports low‑latency streaming via software or hardware encoding (AMD/Intel/NVIDIA) and offers a browser‑based control UI for pairing.
    Downloads: 1,275 This Week
    Last Update:
    See Project
  • 2
    Arianne RPG

    Arianne RPG

    Arianne is an engine to develop multiplayer online games like Stendhal

    Arianne is a multiplayer online engine to develop turn based and real time games, providing a simple way of creating the game server rules and clients like our MORPG Stendhal. Our engine Marauroa uses Java and SQL for hosting hundreds of players on a solo host. Stendhal is a fun friendly and free multiplayer online adventure game with a huge and rich world. With hundreds of NPCs and different quests, features like the Travel log and achievement system keep track of progress. Thousands of creatures are ready to fight, above and below ground, and as players level up they can compare themselves on a detailed stats website. The engine Marauroa provides a simple way of creating games on a portable and robust server architecture. Marauroa manages the client server communication and provides an object orientated view of the world for game developers. It handles database access in a transparent way to store player accounts, character progress and the state of the world
    Downloads: 100 This Week
    Last Update:
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  • 3
    Scrabble3D
    <b>The project is continued at https://github.com/Scrabble3D. Find the latest program version under Binaries.</b> Scrabble3D is a highly customizable Scrabble game that not only supports Classic Scrabble and Superscrabble but also 3D games and own boards. You can play local against the computer or connect to a game server to find other players.
    Downloads: 107 This Week
    Last Update:
    See Project
  • 4
    PufferPanel

    PufferPanel

    PufferPanel is an open source game server management panel

    The simplest, free, open source game management panel. PufferPanel is an open source game server management panel designed to be easy to use and easy to install. PufferPanel supports Minecraft, Forge, Spigot, Sponge, Source Dedicated Servers, BungeeCord, PocketMine, Forge, and much more. In addition to being a free and open source project, PufferPanel provides an easy-to-use interface for everyone from individual users to large networks or companies. We strive to create a friendly community, and we would love for you to join us.
    Downloads: 16 This Week
    Last Update:
    See Project
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  • 5
    Docker Minecraft Server

    Docker Minecraft Server

    Docker image that provides a Minecraft Server for Java Edition

    A Docker image and CLI utility by "itzg" for running a complete Minecraft Java Edition server in a container. It automatically downloads the latest stable game version, supports mods, plugins, snapshots, and simplifies orchestration in Docker or Docker Compose environments.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 6
    MangosZero

    MangosZero

    Mangos ZERO is a server for World of Warcraft

    Mangos is an open source project written in C++. It's fast, runs on multiple platforms and stores game data in MySQL or MariaDB. It also has optional support for SOAP. The server supports a wide range of operating systems and various compiler platforms. In order to do that, we use various free cross-platform libraries and use CMake (v3.12+) to provide a cross-platform build system that adapts to your chosen operating system and compiler.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 7
    Moon

    Moon

    A lightweight game server framework implemented with Actor Model

    Moon is a lightweight game server framework based on the actor model. One worker thread can have one or more actors (services), which communicate with each other through message queues. There are many features for game server development.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 8
    Uptime Kuma

    Uptime Kuma

    A fancy self-hosted monitoring tool

    Uptime Kuma is an easy-to-use self-hosted monitoring tool. It is a temporary live demo, all data will be deleted after 10 minutes. Use the one that is closer to you, but I suggest that you should install and try it out for the best demo experience. Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / Ping / DNS Record / Push / Steam Game Server / Docker Containers. Notifications via Telegram, Discord, Gotify, Slack, Pushover, Email (SMTP), and 90+ notification services, click here for the full list.
    Downloads: 4 This Week
    Last Update:
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  • 9
    AzerothCore

    AzerothCore

    Complete Open Source and Modular solution for MMO

    AzerothCore is a fully open-source MMORPG server framework designed to recreate the gameplay experience of World of Warcraft’s Wrath of the Lich King expansion in a customizable and self-hosted environment. It is written primarily in C++ and provides a complete backend infrastructure for running private game servers, including world simulation, player interaction, combat systems, and database-driven content. The project is highly modular, allowing developers to extend or modify game behavior through plugins and custom modules without altering the core engine. It emphasizes stability and “blizzlike” accuracy, meaning it strives to replicate the original mechanics of the official game as closely as possible. The framework is also used as an educational resource for understanding how large-scale online game servers are structured and maintained. It includes tools for managing server configuration, content scripting, and database operations.
    Downloads: 2 This Week
    Last Update:
    See Project
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  • 10
    Grasscutter

    Grasscutter

    A server software reimplementation for a certain anime game

    Grasscutter is an open-source Java server reimplementation for a certain anime-style online game, created for private server emulation and research. It uses Java 17, MongoDB, and Gradle, and it has an ecosystem that includes documentation, a launcher, plugins, and community tooling. The project allows users to run a compatible server environment for specific supported game client versions, but it is not actively maintained in the same way it once was. Current documentation warns that version matching matters and that support is limited, especially beyond the older supported release range. Grasscutter is most relevant to developers interested in reverse engineering, server emulation, game protocol research, and modding communities. Because it interacts with proprietary game clients and services, it should be used only in lawful, authorized, and non-commercial contexts.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Alternative Lineage 2 Game Server written in Java.
    Downloads: 13 This Week
    Last Update:
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  • 12
    Gamer's Proxy

    Gamer's Proxy

    Proxy for games that emulates network conditions like ping and lag.

    Ever played a competitive game with a friend in which one of you hosted the server on their own machine? Ever thought that it's unfair that one person's ping is zero and the other one's is 80? This is an open-source program that can emulate constant ping, ping spikes and packet losses. Download, extract wherever you want, launch the executable and read the instructions that are conveniently placed in the main window of the program. This program allows gamers to fake their ping and packet loss. Only games which allow direct IP connections are supported - this program will not emulate the game server and will not advertise itself on any master server of any game. The idea is this: game client -> proxy -> game server Demonstration video: http://youtu.be/2VWNhmfD1Qk
    Downloads: 9 This Week
    Last Update:
    See Project
  • 13
    The goal of the project is to create a Java multi-user game server that can be easily extended and used for adding a multiplayer feature to games. User authentication, chat and interfaces for adding custom capabilities will be provided out of the box.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 14
    HOTSPOT

    HOTSPOT

    HOTSPOT for windows 10

    Windows is no longer away from hotspot. This software lets you turn your windows 10 PC into a hotspot. Create your middle-ware with apache, IIS or any server , test it by making your PC server. Create LAN servers to play high end LAN games. Share your internet between your clients and many more.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 15
    Apple Game Server 3.1

    Apple Game Server 3.1

    Upload games to legacy apple // computers via serial and no floppies!

    This java (version 6 or higher) program allows you to send games directly to an old apple // computer with no need for floppies, only a serial cable. No hardware modification is necessary, you only need a working serial connection. A cousin of this project can be found here: http://asciiexpress.net/gameserver/ (Thanks Egan!)
    Downloads: 2 This Week
    Last Update:
    See Project
  • 16
    Lucifer

    Lucifer

    Lucifer: The Ultimate Dev-Ecosystem

    "Everything is integrated. Now, even I can't control it." 루시퍼(Lucifer)는 더 이상 단순한 런처가 아닙니다. 개발자가 필요로 하는 모든 하부 구조를 하나로 집대성한, 통제 불가능한 수준의 올인원 통합 제어 환경입니다. 🚀 핵심 특징 (Core Features) 시리얼 제어 (Advanced Serial Control): 하드웨어와의 접점을 완벽하게 장악합니다. 아두이노 및 각종 임베디드 장치와의 데이터 송수신을 가장 드라이하고 정밀하게 수행합니다. 서버 통합 (Terra Server Engine): MariaDB 연동형 고성능 자바 서버 '테라(Terra)'를 코어로 품어, 데이터 처리와 로직 실행의 중심축을 담당합니다. 톰캣 내장 (Embedded Tomcat): 별도의 WAS 설치 없이도 웹 환경을 즉각적으로 구동합니다. 루시퍼가 곧 웹 서버이자 플랫폼이 됩니다. 자바 내장 (Portable Java Environment): 환경 변수 설정이나 버전 갈등에서 완전히 자유롭습니다. 루시퍼 실행 파일 하나에 최적화된 자바 환경이 포함되어 어디서든 즉시 가동됩니다.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 17
    Steam Desktop Authenticator

    Steam Desktop Authenticator

    A desktop implementation of Steam's mobile authenticator app.

    The Steam Desktop Authenticator is a powerful tool designed to enhance the security of your Steam account. With this program, you can enable two-factor authentication (2FA) for your Steam account, adding an extra layer of protection against unauthorized access. Once installed, the program generates time-based one-time passwords (TOTPs) for your Steam account, which you can use alongside your regular password when logging in. These TOTPs are generated locally on your computer, providing a secure and convenient way to verify your identity.
    Downloads: 3 This Week
    Last Update:
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  • 18
    QStat is a command-line utility for collecting real-time statistics from on-line game servers. The games supported are generally limited to the first-person-shooter genre (Quake, Half-Life, Unreal, etc). Statistics may be output in a variety of form
    Downloads: 1 This Week
    Last Update:
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  • 19
    Shoddy Battle (later known as Pokémon Lab) is a Pokémon simulator created by Cathy and bearzly and first released in July 2007. It allows users to play Pokémon matches against other people online. Shoddy Battle was highly influential on the game of competitive Pokémon because it was free and open source, scalable (700,000 battles per month during its peak), user customisable and extensible, and it provided unprecedented statistical data on player skill and Pokémon usage trends. Visit the web site for more information.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    A simple Java console application which connects to Call of Duty game server by RCON protocol.
    Downloads: 1 This Week
    Last Update:
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  • 21
    ASA Server Manager
    ASAM is a Ark Ascended dedicated server manager. Able to install and manage large clusters with different settings seamlessly. Built to fix what other launchers were lacking in control and simplicity.
    Downloads: 1 This Week
    Last Update:
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  • 22
    Diablo 2 Closed Game Server. The project was orginally developed inhouse by Net-Games (www.net-games.com), and has been made opensource for development speed up and getting new features built in.
    Downloads: 1 This Week
    Last Update:
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  • 23
    A LAN game server management utility with the ability to batch control servers from one simple interface. With the possibility of integrating the whole registration/organisation of the LAN event at a later date.
    Downloads: 1 This Week
    Last Update:
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  • 24

    GameServer

    GameServer is a sophisticated, game server designed for online games

    GameServer is a sophisticated, game server designed for massively multiplayer online games. Built with a C++ core and extensible Python scripting, it provides solution for managing persistent game worlds with real-time player interactions, advanced networking, and comprehensive monitoring capabilities.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    Ragnarok Online Site Engine (ROse) - Free Control Panel (CMS) for eAthena Ragnarok Online server Emulator. Written in PHP language. Use smarty php class for templates. contains many functions for manage eAthena dabases.
    Downloads: 1 This Week
    Last Update:
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