Showing 1450 open source projects for "multiplayer"

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  • 1
    Warzone 2100

    Warzone 2100

    Free and open source real-time strategy game

    ...Supporting Windows, macOS, Linux, FreeBSD and more - all with cross-platform multiplayer support!
    Downloads: 71 This Week
    Last Update:
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  • 2
    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: 124 This Week
    Last Update:
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  • 3
    Rune

    Rune

    Build multiplayer web games played by millions

    Rune is a game development platform focused on creating real-time multiplayer games with minimal backend code. Designed for indie developers, it handles networking, matchmaking, and server management while integrating seamlessly with JavaScript-based game engines.
    Downloads: 8 This Week
    Last Update:
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  • 4
    S&box

    S&box

    s&box is a modern game engine, built on Valve's Source 2

    ...Built on a cutting-edge game engine, s&box allows creators to prototype, build, and share interactive game modes, tools, and environments using C#, JavaScript, and visual scripting, promoting accessible content creation for developers of varying skill levels. The platform emphasizes multiplayer and community experiences, giving creators direct control over networking, physics, rendering, and audio without needing to build those systems from scratch. With real-time recompilation and fast iteration loops, developers can see changes instantly, speeding up the creative process dramatically compared to traditional engines. ...
    Downloads: 151 This Week
    Last Update:
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    Your smart coding agent

    Junie is an AI-powered coding agent developed by JetBrains designed to enhance developer productivity by integrating directly into popular IDEs such as IntelliJ IDEA, PyCharm, and Android Studio. It supports developers by assisting with code completion, testing, and inspections, ensuring code quality and reducing debugging time.
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  • 5
    Colyseus

    Colyseus

    Multiplayer Framework for Node.js

    Colyseus is a multiplayer framework for Node.js that simplifies the creation of real-time multiplayer games and applications, providing a robust and scalable solution for developers.
    Downloads: 0 This Week
    Last Update:
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  • 6
    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.
    Downloads: 4 This Week
    Last Update:
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  • 7
    OpenSoldat

    OpenSoldat

    OpenSoldat is a unique 2D (side-view) multiplayer action game

    OpenSoldat is a unique 2D (side-view) multiplayer action game. It has been influenced by the best of games such as Liero, Worms, Quake, Counter-Strike, and provides a fast-paced gaming experience with tons of blood and flesh. This repository contains the source code of the so-called 1.8 version. Compared to the original version, the code has undergone many changes but is not in a finished state.
    Downloads: 2 This Week
    Last Update:
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  • 8
    Unciv

    Unciv

    Open-source Android/Desktop remake of Civ V

    Unciv is an open-source reimplementation of the game Civilization V in Java using LibGDX. It focuses on replicating the core gameplay mechanics in a lightweight, mobile- and desktop-friendly format, supporting both single-player and multiplayer modes. Unciv uses a minimalist art style and text-based UI to deliver a fast, turn-based strategy experience.
    Downloads: 18 This Week
    Last Update:
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  • 9
    Gradient Bang

    Gradient Bang

    Gradient Bang is an online multiplayer universe

    Gradient Bang is an experimental open-source project developed within the Pipecat ecosystem that reimagines AI interaction as a persistent, multiplayer simulation where users and large language models coexist inside a shared virtual environment. Rather than functioning as a traditional application or API, it is conceptualized as an “online multiplayer universe” in which participants can explore, trade, battle, and collaborate while interacting with AI agents as active entities within the system. ...
    Downloads: 3 This Week
    Last Update:
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  • 10
    SpacetimeDB

    SpacetimeDB

    Multiplayer at the speed of light

    SpacetimeDB is a high-performance, distributed database optimized for real-time multiplayer applications. It offers low-latency data synchronization across clients, ensuring a seamless and responsive user experience. With built-in conflict resolution and support for complex data types, SpacetimeDB simplifies the development of interactive, collaborative applications.
    Downloads: 4 This Week
    Last Update:
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  • 11
    Mirror Engine

    Mirror Engine

    V1, Mirror Classic. V2, Mirror Engine: Join Discord for access

    ...The repository includes components for both the engine application and supporting server infrastructure, allowing the platform to function as a full game development ecosystem. The engine aims to simplify the process of building multiplayer experiences by providing built-in networking, asset management, and synchronization systems.
    Downloads: 1 This Week
    Last Update:
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  • 12
    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: 1 This Week
    Last Update:
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  • 13
    LeviLamina

    LeviLamina

    A lightweight, modular and versatile mod loader for Minecraft Bedrock

    ...By enabling modular extensions, the platform helps server operators tailor gameplay experiences and build complex multiplayer environments.
    Downloads: 6 This Week
    Last Update:
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  • 14
    Counter-Strike: Football

    Counter-Strike: Football

    Multiplayer FPS game - Counter-Strike: Football

    Competitive multiplayer FPS game where two football fan teams fight with the goal of winning more rounds than the opponent team. Teams are Attackers and Defenders. The Defenders team has a goal of protecting their fan base sanctuary every round from desecrating by attackers using their graffiti bomb ball.
    Downloads: 3 This Week
    Last Update:
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  • 15
    Mindustry

    Mindustry

    An open-source sandbox tower defense game

    Mindustry is a tower-defense sandbox factory game. Build supply chains of conveyor belts to fuel your turrets, produce materials for building, and defend your structures from waves of enemies.
    Downloads: 137 This Week
    Last Update:
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  • 16
    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: 19 This Week
    Last Update:
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  • 17
    Flycast

    Flycast

    Flycast is a multiplatform Sega Dreamcast, Naomi, Naomi 2

    ...The emulator focuses on both accuracy and performance, using optimized rendering techniques to replicate original visuals while offering optional enhancements such as higher resolutions and improved textures. It includes support for online multiplayer, save states, and various input devices, making it more flexible than original hardware. Flycast also supports arcade systems based on similar architectures, expanding its compatibility beyond standard console titles. The project is actively developed, with ongoing improvements to compatibility, performance, and feature support.
    Downloads: 34 This Week
    Last Update:
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  • 18
    Xash3D FWGS Engine

    Xash3D FWGS Engine

    Xash3D FWGS engine

    ...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 filesystem, and support for modern asset formats. For modders or fans of classic games, Xash3D FWGS offers a way to play or build games using the familiar GoldSrc workflow but with updated portability and features. Legacy mods and maps for supported games can often be used unchanged (or with minimal modifications), preserving the classic experience. ...
    Downloads: 123 This Week
    Last Update:
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  • 19
    OpenRA

    OpenRA

    Real Time Strategy game engine supporting early Westwood classics

    ...This means that OpenRA is not restricted by the technical limitations of the original closed-source games: it includes native support for modern operating systems and screen resolutions (including Windows 10, Mac OS X, and most Linux distros) without relying on emulation or binary hacks, and features integrated online multiplayer.
    Downloads: 57 This Week
    Last Update:
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  • 20
    WorldEdit

    WorldEdit

    Minecraft map editor and mod

    ...Instead of placing or removing blocks individually, WorldEdit provides commands and tools that enable users to select regions of the world and apply transformations to thousands or even millions of blocks at once. This capability makes it extremely useful for constructing large builds, terraforming terrain, repairing damage, or managing multiplayer server worlds efficiently. 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: 19 This Week
    Last Update:
    See Project
  • 21
    C-Dogs SDL

    C-Dogs SDL

    Classic overhead run-and-gun game

    C-Dogs SDL is an open-source, classic overhead run-and-gun game that offers both single-player and multiplayer modes. It features customizable campaigns, a variety of weapons, and supports modding, allowing players to create and share their own missions. The game has been updated to include modern features while retaining its retro charm.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 22
    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 platform ensures security, ease of use, and high customization for developers. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    FreeOrion

    FreeOrion

    Source code repository of the FreeOrion project

    ...Players manage planets, design ships, conduct research, engage in diplomacy, and wage war across a procedurally generated galaxy. FreeOrion offers a unique tech tree, customizable empires, and supports multiplayer for competitive or cooperative play. It's community-driven, open-source, and under active development.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 24
    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. The project aims to replicate the core mechanics and gameplay of Minecraft while providing a flexible foundation for customization and optimization. Its architecture emphasizes efficient networking, resource management, and scalability, allowing servers to handle more players with reduced system overhead. ...
    Downloads: 10 This Week
    Last Update:
    See Project
  • 25
    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: 10 This Week
    Last Update:
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