Showing 1712 open source projects for "multiplayer"

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  • 1
    Archipelago

    Archipelago

    Archipelago Multi-Game Randomizer and 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: 18 This Week
    Last Update:
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  • 2
    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: 9 This Week
    Last Update:
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  • 3
    Libplanet

    Libplanet

    Blockchain in C#/.NET for on-chain, decentralized gaming

    Libplanet is a .NET library for creating multiplayer online game in decentralized fashion, which means the whole gameplay occurs on a peer-to-peer network among equal nodes rather than an authorized central server. Under the hood, it incorporates many features (e.g., digital signature, BFT consensus, data replication) of a blockchain.
    Downloads: 9 This Week
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  • 4
    Trystero

    Trystero

    Serverless WebRTC matchmaking for painless P2P

    Serverless WebRTC matchmaking for painless P2P: make any site multiplayer in a few lines. Trystero manages a clandestine courier network that lets your application's users talk directly with one another, encrypted and without a server middleman. To establish a direct peer-to-peer connection with WebRTC, a signalling channel is needed to exchange peer information (SDP). Typically this involves running your own matchmaking server but Trystero abstracts this away for you and offers multiple "serverless" strategies for connecting peers (currently BitTorrent, Firebase, and IPFS).
    Downloads: 4 This Week
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  • 5
    Zed

    Zed

    High-performance, multiplayer code editor from the creators of Atom

    Zed is a next-generation code editor designed for high-performance collaboration with humans and AI. Written from scratch in Rust to efficiently leverage multiple CPU cores and your GPU. Integrate upcoming LLMs into your workflow to generate, transform, and analyze code. Chat with teammates, write notes together, and share your screen and project. Multibuffers compose excerpts from across the codebase in one editable surface. Evaluate code inline via Jupyter runtimes and collaboratively edit...
    Downloads: 31 This Week
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  • 6
    Yogstation
    Yogstation is an open source fork of Space Station 13 developed and maintained by the Yogstation community. It offers a balanced mix of roleplay and gameplay, aiming to create an engaging multiplayer experience with unique mechanics and server rules. The repository contains the full SS13 codebase with modifications, including custom jobs, items, maps, and quality-of-life improvements. Yogstation prioritizes accessibility for new players while maintaining depth for veterans, making it one of the more popular SS13 community forks. ...
    Downloads: 6 This Week
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  • 7
    SteelMC

    SteelMC

    A Minecraft server in Rust focused on a strong foundation

    ...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. Its networking layer supports Java Edition authentication, encryption, compression, and protocol communication. World generation is currently its most complete system and is tested against reproducible vanilla chunks for block-level parity. ...
    Downloads: 12 This Week
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  • 8
    Librelancer

    Librelancer

    A re-implementation of Freelancer

    Librelancer is an open-source reimplementation of the engine behind Freelancer, the iconic 2003 space trading and combat simulation game by Microsoft. Written in C# and powered by OpenGL and modern game development practices, Librelancer faithfully replicates the original gameplay while providing a flexible codebase for modding, analysis, and future enhancements. It supports original assets and is designed to be both a preservation project and a foundation for new space simulation games...
    Downloads: 4 This Week
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  • 9
    Evennia

    Evennia

    Python MUD/MUX/MUSH/MU* development system

    Evennia is a mature, open-source framework written in Python — specifically designed to build text-based, online multiplayer games such as MUDs, MUCKs, MUSHes, MUXes, and other “MU-style” virtual worlds. Rather than prescribing a rigid game structure, Evennia gives you a bare-bones but powerful foundation: default systems handle networking, database/storage, server management, user accounts, characters, rooms, items, chat channels, and basic commands — but you define the gameplay rules, content, and game logic yourself in pure Python modules. ...
    Downloads: 0 This Week
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  • 10
    Ancient Beast

    Ancient Beast

    The Turn Based Strategy Game/eSport. Master your beasts

    Ancient Beast is a turn-based strategy indie game project played online against other people featuring a wide variety of creatures to acquire, putting them to use in order to defeat your opponents. This project was carefully designed to be easy to learn, fun to play and hard to master. We hope you'll enjoy it. The game takes place in a dystopian future, where people have excelled in power thanks to the use of technology, specifically advanced 3d printers. The world is split into 7 factions,...
    Downloads: 9 This Week
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  • 11
    Factorio

    Factorio

    Factorio headless server in a Docker container

    ...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. The container automatically handles dependencies, configuration, and updates, making it easier for system administrators and hobbyists to run dedicated Factorio servers. Users can configure server settings, maps, mods, and saved games through mounted volumes and environment variables within the container.
    Downloads: 6 This Week
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  • 12
    Overload Technologies

    Overload Technologies

    3D game engine with lua scripting

    Overload is a six-degree-of-freedom (6DoF) shooter game developed by Revival Productions. It serves as a spiritual successor to the classic 'Descent' series, offering intense combat, labyrinthine levels, and a rich sci-fi narrative. Players navigate fully 3D environments, battling robotic adversaries with a variety of weapons, all while experiencing complete freedom of movement in any direction.​
    Downloads: 2 This Week
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  • 13
    Widelands

    Widelands

    Widelands is a free, open source real-time strategy game

    Widelands is a free, open-source real-time strategy game with single-player campaigns and a multiplayer mode. The game was inspired by Settlers II™ (© Bluebyte) but has significantly more variety and depth to it. Still, it is easy to get started through playable tutorials. In Widelands, you are the regent of a small clan. You start out with nothing but your headquarters, where all your resources are stored. In the course of the game, you will build an ever growing settlement.
    Downloads: 10 This Week
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  • 14
    Better Stack JavaScript client

    Better Stack JavaScript client

    Better Stack JavaScript client

    ...Search all your logs anytime. See what metrics your teammates are looking at, comment on note-worthy data spikes and share log fragments with one click. Building a great software is a multiplayer game. Get answers fast with a powerful SQL query builder. No need to learn a new querying language or ask your data analyst.
    Downloads: 8 This Week
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  • 15
    Merlin HTTP/2

    Merlin HTTP/2

    Merlin is a cross-platform post-exploitation HTTP/2 Command

    ...The command-line interface only works great if it will be used by a single operator at a time. The Merlin agent can be controlled through Mythic, which features a web-based user interface that enables multiplayer support, and a slew of other features inherent to the project.
    Downloads: 8 This Week
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  • 16
    JanusWeb

    JanusWeb

    An in-browser implementation of JanusVR

    ...JanusXR turns any webpage into its own three-dimensional space where users can meet and explore with others. Host content on the open web and customize Janus' open-source multiplayer server to fit your needs. VESTA is JanusXR's user-driven community. Post your own spaces and get feedback from other community members! The built-in editor allows users to join together to create content in real-time. JanusWeb's widget generator allows you to embed a 3D WebVR portal to your webspace into any 2D webpage. With the JanusXR Youtube translator, watching videos with friends is a walk in the park. ...
    Downloads: 8 This Week
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  • 17
    CrowdSec

    CrowdSec

    Firewall able to analyze visitor behavior & provide adapted response

    CrowdSec - an open-source massively multiplayer firewall able to analyze visitor behavior & provide an adapted response to all kinds of attacks. It also leverages the crowd power to generate a global IP reputation database to protect the user network. Crowdsec shouldn't, and didn't crash any production so far we know, but some features might be missing or undergo evolutions.
    Downloads: 8 This Week
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  • 18
    TauCeti Classic

    TauCeti Classic

    Frankenstein lived

    ...TauCetiClassic emphasizes immersive roleplay scenarios, detailed station environments, and unique content compared to other SS13 forks. The project is actively developed, with ongoing updates from its community of players and coders. By extending SS13, it provides both a playable multiplayer environment and a collaborative platform for experimentation.
    Downloads: 2 This Week
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  • 19
    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: 3 This Week
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  • 20
    Luck Perms

    Luck Perms

    A permissions plugin for Minecraft servers

    ...The plugin provides a flexible system for creating user groups, assigning permissions, and defining roles that determine access to commands, features, and gameplay mechanics. Designed for performance and scalability, LuckPerms can handle large multiplayer servers and complex permission hierarchies while maintaining fast response times. Administrators can configure permissions using command-line tools, configuration files, or a web-based editor that simplifies management of large permission systems. The plugin also supports multiple storage backends such as local files, SQL databases, and other data systems, allowing server networks to synchronize permissions across multiple servers.
    Downloads: 2 This Week
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  • 21
    CMSS13

    CMSS13

    Contains the code for CM-SS13

    ...The repository includes the complete source code, sprites, maps, and configuration files needed to run servers or contribute to development. Compared to traditional SS13 forks, cmss13 introduces unique mechanics such as marine squads, advanced weaponry, and alien abilities, offering a combat-heavy multiplayer experience. The project thrives on active contributions from its community, ensuring continuous updates and balancing. It provides both a platform for immersive gameplay and an open development environment for fans of the SS13 ecosystem.
    Downloads: 2 This Week
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  • 22
    Mudlet

    Mudlet

    Cross-platform, open source, and super fast MUD client with scripting

    Play immersive, multiplayer, pure-text games on Mudlet. Performance defined Mudlet from its birth. The custom text display and the Lua-powered scripting system will handle the biggest raids without issues. Mudlet’s entire user interface is designed to be modded – from the space within the window to the look and feel of the client itself. Make yourself a beautiful portal to your text world.
    Downloads: 6 This Week
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  • 23
    quadplay

    quadplay

    The quadplay fantasy console

    ...Play your games in any modern web browser on a laptop, desktop, tablet, phone, Raspberry Pi 4, or Jetson Nano. 60 fps @ 384 x 224 pixels = 12:7 aspect ≈ 16:9.3. 4096 sRGB (4:4:4) colors. Four players with virtual controls for D-pad and eight buttons. Local and safe online multiplayer. Supports Xbox, Playstation, SNES, Stadia, Switch, 8bitdo, touch screen, and other controllers. Hundreds of built-in sprites, sounds, and fonts. Program in PyxlScript, a friendly Python-like language. Order-independent, 4-bit alpha transparency. Native 2.5D graphics with z-order.
    Downloads: 4 This Week
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  • 24
    Centrifuge

    Centrifuge

    Real-time messaging library for Go with scalability in mind

    ...It's a general-purpose real-time messaging library for Go programming language. Real-time messaging can help create interactive applications where events are delivered to online users with minimal delay. Chats apps, live comments, multiplayer games, real-time data visualizations, collaborative tools, etc. can all be built on top of Centrifuge library. The library is built on top of efficient client-server protocol schema and exposes various real-time oriented primitives for a developer.
    Downloads: 6 This Week
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  • 25
    LÖVR

    LÖVR

    Lua Virtual Reality engine

    ...Writen in C99 and scripted with LuaJIT, includes optimized single-pass stereo rendering. Out of the box you get fast stereo rendering, VR controllers, hand tracking, haptics, spatial audio, 3D physics, PBR materials, SDF fonts, multiplayer, and more. The entire engine is 1MB and runs on LuaJIT, the fastest JIT compiler round these parts. Projects are just folders with scripts and assets in them, organized however you want.
    Downloads: 4 This Week
    Last Update:
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