Showing 300 open source projects for "multiplayer server"

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  • 1
    LeviLamina

    LeviLamina

    A lightweight, modular and versatile mod loader for Minecraft Bedrock

    ...LeviLamina includes tools and APIs that allow server administrators to add new commands, automation systems, and gameplay mechanics to their servers. By enabling modular extensions, the platform helps server operators tailor gameplay experiences and build complex multiplayer environments.
    Downloads: 57 This Week
    Last Update:
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  • 2
    Horizon

    Horizon

    Horizon is Minecraft: Java Edition 26.3 rewritten in Rust

    ...The platform also supports multiplayer servers, LAN connections, and AI agent interactions through a command-line interface and Model Context Protocol (MCP) server. Horizon uses differential testing against the original Minecraft implementation to verify gameplay accuracy.
    Downloads: 12,400 This Week
    Last Update:
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  • 3
    Subnautica Nitrox

    Subnautica Nitrox

    An open-source, multiplayer modification for the game Subnautica

    Nitrox is a free, open-source multiplayer modification for Subnautica that allows players to explore, survive, and build together in the game's underwater world. The mod introduces multiplayer functionality to the originally single-player survival game, enabling friends to connect through a client-server architecture and share the same environment. Nitrox synchronizes player movement, inventory interactions, world changes, and base construction so multiple players can collaborate on exploration and survival activities. ...
    Downloads: 15 This Week
    Last Update:
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  • 4
    MinecraftConsoles

    MinecraftConsoles

    A certain block game

    ...It supports running on desktop platforms with keyboard and mouse input, making it more accessible beyond its original console-focused design. The repository also includes a dedicated server implementation, enabling multiplayer experiences and LAN-based connectivity. Developers can build and modify the project using modern toolchains, making it a flexible environment for both preservation and innovation.
    Downloads: 104 This Week
    Last Update:
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  • 5
    Impostor

    Impostor

    An open source reimplementation of the Among Us Server

    Impostor is an open source reimplementation of the Among Us Server, written in C#. It is among the first Among Us private servers with support for Steam, Itch, Android and iOS. It is a full replacement of the game's official server, so you can expect all of the game's features to be included, and the same fun playing experience. The difference of course is that you get to play on a private and secure server. Impostor has plugin support as well as a server-sided anticheat feature. You also...
    Downloads: 11 This Week
    Last Update:
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  • 6
    WorldEdit

    WorldEdit

    Minecraft map editor and mod

    ...The tool includes a variety of editing methods such as brushes, shape generation commands, and clipboard operations that allow copying, pasting, and rotating entire structures. WorldEdit can run in both single-player environments and multiplayer servers and is compatible with several modding platforms and server frameworks used in Minecraft Java Edition.
    Downloads: 97 This Week
    Last Update:
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  • 7
    BeamNG.Earth

    BeamNG.Earth

    A 1:1 scale streamed Earth for BeamNG.drive

    ...Roads, buildings, bridges, forests, waterways, and infrastructure are generated from geographic datasets. Regional vegetation, ground materials, lighting, and environmental sounds increase immersion. A companion server streams terrain and world information as players explore different locations. The project also includes BeamMP multiplayer integration and geographic navigation tools. It remains in beta development and requires a compatible BeamNG.drive installation.
    Downloads: 926 This Week
    Last Update:
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  • 8
    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.
    Downloads: 0 This Week
    Last Update:
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  • 9
    Pumpkin

    Pumpkin

    Empowering everyone to host fast and efficient Minecraft servers

    Pumpkin is an open-source Minecraft server implementation written entirely in the Rust programming language with the goal of delivering high performance, efficiency, and modern architecture for hosting multiplayer worlds. Unlike the original Java-based server, Pumpkin focuses on leveraging Rust’s memory safety and performance advantages to create a fast and stable server environment.
    Downloads: 15 This Week
    Last Update:
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  • 10
    gswatcher

    gswatcher

    A simple game server monitor and an administrative tool

    gswatcher is a free, open-source application for monitoring multiplayer game servers and performing basic remote administration. It allows players to maintain a list of favorite servers and check their availability. The application supports multiple server query protocols for retrieving information from compatible games. A buddy list helps users follow friends who play on monitored servers. Desktop notifications can alert users when a buddy joins a server.
    Downloads: 6 This Week
    Last Update:
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  • 11
    DiIiS Project

    DiIiS Project

    Fully-functional open-source server implementation for Diablo 3

    Blizzless DiIiS is an open-source server implementation for Diablo III: Reaper of Souls that allows players to run the game in a fully local or private server environment. It recreates much of the game’s backend infrastructure, including account systems, matchmaking, progression mechanics, and gameplay logic. The project supports a wide range of in-game systems such as character classes, item generation, quests, and multiplayer interactions, aiming to replicate the original online experience without requiring Blizzard’s official servers. ...
    Downloads: 2 This Week
    Last Update:
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  • 12
    GrimAC

    GrimAC

    Fully async, multithreaded, predictive, open source, 3.01 reach

    ...The software is designed to operate asynchronously and with multithreaded processing, allowing servers to maintain high performance even when monitoring large numbers of players simultaneously. Grim supports a wide range of Minecraft versions and can integrate with server platforms used in competitive or large multiplayer environments.
    Downloads: 8 This Week
    Last Update:
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  • 13
    CatServer

    CatServer

    A high performance and high compatibility 1.12.2/1.16.5/1.18.2 version

    CatServer is an open-source hybrid Minecraft server implementation that combines support for both Forge mods and Bukkit-style plugins within the same server environment. Traditional Minecraft server software typically supports either mod loaders such as Forge or plugin systems like Bukkit and Spigot, but CatServer aims to bridge this gap by enabling both ecosystems to coexist. This hybrid approach allows administrators to run modded gameplay features while also using administrative plugins...
    Downloads: 34 This Week
    Last Update:
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  • 14
    XMage

    XMage

    Magic Another Game Engine

    ...You can also find custom sets like Star Wars. All regular sets have nearly all implemented cards. It supports single matches and tournaments with dozens game modes like duel, multiplayer, standard, modern, commander, pauper, oathbreaker, historic, freeform and much more. Local server supports a special test mode for testing combos and other game situations with pre-defined conditions. There are public servers where you can play XMage against other players. You can also host your own server to play against the AI and/or your friends. ...
    Downloads: 15 This Week
    Last Update:
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  • 15
    Archipelago

    Archipelago

    Archipelago Multi-Game Randomizer and Server

    ...The software creates what is known as a “multiworld,” where items that normally appear in one game may instead appear in another player’s game. When a player finds an item belonging to someone else, the system automatically sends that item to the correct player through a networked server. This design encourages cooperative gameplay because progress in one player’s game can depend on items found by other participants. Archipelago includes tools for generating randomized game worlds, hosting multiplayer sessions, and connecting players through dedicated clients. The framework supports a growing list of games that have been adapted to work with its randomization protocol.
    Downloads: 52 This Week
    Last Update:
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  • 16
    Luanti

    Luanti

    Voxel game-creation platform with easy modding and game creation

    ...This modular design enables rich customization and community-driven content: users can install new games, mods, and texture packs via a built-in content browser that draws from a central repository (ContentDB). Luanti supports both single-player and multiplayer via servers; players can host their own or join publicly listed ones, with server-side mods being applied automatically.
    Downloads: 50 This Week
    Last Update:
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  • 17
    Minestom

    Minestom

    1.21.11 Lightweight Minecraft server

    Minestom is an open-source Minecraft server development framework that allows developers to build custom Minecraft server software from scratch without relying on Mojang’s original server code. Instead of functioning as a traditional server implementation, Minestom acts as a lightweight library that provides the core networking and gameplay infrastructure needed to create Minecraft server applications. Developers can use it to design custom game modes, experimental server architectures, or...
    Downloads: 2 This Week
    Last Update:
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  • 18
    Matchbox

    Matchbox

    Painless peer-to-peer WebRTC networking for rust wasm

    Matchbox is a WebRTC-based networking library for the Bevy game engine, enabling multiplayer games to run in the browser or native environments with peer-to-peer communication. It handles matchmaking, NAT traversal, and synchronization in real-time, making it easier for game developers to add fast and scalable multiplayer features. Designed with simplicity and performance in mind, Matchbox supports both WebAssembly and desktop targets. It’s especially useful for browser-based games that need...
    Downloads: 0 This Week
    Last Update:
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  • 19
    GeyserMC

    GeyserMC

    A bridge/proxy allowing you to connect to Minecraft

    ...By bridging the differences between the two platforms, Geyser allows server communities to unify players who would otherwise be separated by incompatible game editions. The software typically runs as a plugin, proxy, or standalone bridge and integrates with popular Java server platforms such as Spigot, Paper, or Velocity.
    Downloads: 30 This Week
    Last Update:
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  • 20
    Reldens - MMORPG Platform

    Reldens - MMORPG Platform

    You can make it - Open Source MMORPG Platform

    Welcome to Reldens, a platform designed to empower developers in creating multiplayer games. With a wide array of features, Reldens enables developers to craft a rich gaming experience without grappling with the complexities usually associated with making a multiplayer game secure and efficient over any network. Built with popular development tools such as NodeJS, Parcel, Colyseus, Phaser, and Firebase, integrated with various database engines, and following robust development practices, the...
    Downloads: 0 This Week
    Last Update:
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  • 21
    SteelMC

    SteelMC

    A Minecraft server in Rust focused on a strong foundation

    SteelMC is an independent Minecraft Java Edition server implementation written in Rust. It aims to reproduce vanilla behavior while using modern multicore processors more efficiently. Gameplay updates remain synchronous, while chunk generation, lighting, packet processing, and chunk transmission can run outside the main server tick. Players can join persistent multiplayer worlds, move, interact with blocks, manage inventories, use commands, chat, and return to previously saved areas. ...
    Downloads: 18 This Week
    Last Update:
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  • 22
    python-socketio

    python-socketio

    Python Socket.IO server and client

    ...It works with multiple asynchronous frameworks such as asyncio, eventlet, and gevent, so developers can choose the concurrency model that best fits their application needs while still using a consistent API. The library provides both server and client implementations, allowing Python applications to serve and communicate with browser clients or other Socket.IO clients in real time. It supports key Socket.IO features like event handling, message broadcasting, binary data transmission, rooms, and namespaces, giving developers the building blocks to create chat applications, live dashboards, multiplayer games, and collaborative tools.
    Downloads: 10 This Week
    Last Update:
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  • 23
    Xash3D FWGS Engine

    Xash3D FWGS Engine

    Xash3D FWGS engine

    Xash3D FWGS is an open-source fork and extension of the original GoldSrc-based engine (from the classic era of first-person shooters), aimed at providing compatibility with the original engine (e.g. games built on it) while extending and modernizing its capabilities. The engine supports multiple rendering backends (OpenGL, GLES, software fallback), modern platforms (desktop OSes, mobile, etc.), and updated features such as better multiplayer, voice chat, IPv6 support, improved virtual...
    Downloads: 88 This Week
    Last Update:
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  • 24

    fgms - multiplayer for flightgear

    A network server for the flightgear simulator

    A network server for the flightgear project. Link together multiple Pilots.
    Downloads: 0 This Week
    Last Update:
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  • 25
    Factorio

    Factorio

    Factorio headless server in a Docker container

    Factorio is an open-source project that provides a Docker container for running a headless Factorio game server. Factorio is a factory-building simulation game in which players automate production lines, research technologies, and manage complex industrial systems, and the repository focuses specifically on hosting the game server in a containerized environment. By packaging the server into a Docker image, the project simplifies the process of deploying and maintaining multiplayer servers across different operating systems and cloud environments. ...
    Downloads: 1 This Week
    Last Update:
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