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: 1,268 This Week
    Last Update:
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  • 2
    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.
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    Downloads: 200 This Week
    Last Update:
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  • 3
    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
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    Downloads: 137 This Week
    Last Update:
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  • 4
    Nakama

    Nakama

    Distributed server for social and realtime games and apps

    Distributed server for social and real-time games and apps. Users can connect with friends, and join groups. A built-in social graph to see how users can be connected. Extend the server with custom logic written in Lua, TypeScript/JavaScript, or native Go code. Build scalable games and apps with a production-ready server used by ambitious game studios and app developers all around the world.
    Downloads: 24 This Week
    Last Update:
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  • 5
    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: 16 This Week
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  • 6
    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: 6 This Week
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  • 7
    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: 5 This Week
    Last Update:
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  • 8
    Leaf

    Leaf

    A game server framework in Go (golang)

    Leaf, written in Go, is a open-source game server framework aiming to boost efficiency both in development and runtime. Simple APIs. Leaf tends to provide simple and plain interfaces which are always best for use. Self-healing. Leaf always tries to salvage the process from runtime errors instead of leaving it to crash. Multi-core support. Leaf utilize its modules and leaf/go to make use of CPU resouces at maximum while avoiding varieties of side effects may be caused. Each module runs inside a separate goroutine. Modules communicate with one another via a light weight RPC channel(leaf/chanrpc). Leaf suggests not to take in too many modules in your game server implementation. Gate module, for management of connection. Login module, for user authentication. Game module, for the main business.
    Downloads: 4 This Week
    Last Update:
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  • 9
    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: 4 This Week
    Last Update:
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  • 10
    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
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  • 11
    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: 3 This Week
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  • 12
    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: 2 This Week
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  • 13
    Alternative Lineage 2 Game Server written in Java.
    Downloads: 25 This Week
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  • 14
    Agones

    Agones

    Dedicated Game Server Hosting and Scaling for Multiplayer Games

    Multiplayer dedicated game servers anywhere. An open source, batteries-included, multiplayer dedicated game server scaling and orchestration platform that can run anywhere Kubernetes can run. Define and manage groups of ready-game servers through YAML configuration or API calls. Integrated SDK for managing game server lifecycle, health and configuration. Integration with OpenCensus for platform-independent game server metrics and monitoring dashboards. Agones replaces usual bespoke or proprietary cluster management and game server scaling solutions with a Kubernetes cluster that includes the Agones custom Kubernetes Controller and matching Custom Resource Definitions for GameServers, Fleets and more. With Agones, Kubernetes gets native abilities to create, run, manage and scale dedicated game server processes within Kubernetes clusters using standard Kubernetes tooling and APIs. This model also allows any matchmaker to interact directly with Agones via the Kubernetes API.
    Downloads: 1 This Week
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  • 15
    NettyGameServer

    NettyGameServer

    A mobile game distributed server implemented using netty4.X

    A mobile game distributed server implemented using netty4.X, supports tcp, udp, http, websocket links, uses protobuf custom protocol stack for network communication, supports rpc remote calls, uses mybatis3 to support db storage sub-database sub-table, supports asynchronous mysql Storage, update the reids cache synchronously when the db is saved. Use the ExcelToCode project to generate java classes and json data dictionaries from excel data, and DictService directly reads json to reduce part of the data dictionary code. Use the game-executor project to increase the asynchronous event global service in the game, support event sharding, and balance asynchronous execution event logic. Use netty's proxy mode to increase gateway proxy forwarding.
    Downloads: 1 This Week
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  • 16
    NoahGameFrame

    NoahGameFrame

    A fast, scalable, distributed game server engine/framework for C++

    A fast, scalable, distributed game server engine/framework for C++, including the actor library, and network library, can be used as a real-time multiplayer game engine ( MMO RPG/MOBA ), which supports C#/Lua script/ Unity3d, Cocos2dx and plan to support Unreal. Easy-to-use, interface-oriented design. An extensible plugin framework that makes getting your application running quick and easy. A clean, uncluttered design and stable engine that has been used in several commercial products. A high-performance actor model (by a safe thread pool). Event and attribute-driven, making it clear and easy to maintain your business. Based on standard C++ development, ensuring cross-platform support. An existing C++ and C# game client for rapid development. Cross-platform support.
    Downloads: 1 This Week
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  • 17
    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: 12 This Week
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  • 18
    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: 10 This Week
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  • 19
    starrydb-publice

    starrydb-publice

    starrydb is game server engine

    starrydb is game server engine, As long as a few simple scripts can help you quickly build a game server. email:admin@starrydb.com
    Downloads: 10 This Week
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  • 20
    A PHP 5 library for querying game servers. Currently supporting over 160 games, including source (half-life), unreal and quake engine games, ase & gamespy protocols. Newer games supported are Crysis & Call of Duty 5. Also supports Teamspeak 2.
    Downloads: 4 This Week
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  • 21
    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
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  • 22
    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: 5 This Week
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  • 23
    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: 3 This Week
    Last Update:
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  • 24
    webDiplomacy
    Diplomacy is a popular turn based strategy game in which you battle to control Europe; to win you must be diplomatic and strategic. webDiplomacy lets you play Diplomacy online. Official game server: http://webdiplomacy.net/
    Downloads: 2 This Week
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  • 25
    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: 7 This Week
    Last Update:
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