Showing 1712 open source projects for "multiplayer"

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  • 1
    openage

    openage

    Open source clone of the Age of Empires II engine

    ...Using modern technologies as C++17, OpenGL/GLSL, Python, Qt5 and CMake allows people using GNU/Linux, BSD, macOS or Windows to play the game natively. Our aim is to make openage a platform for the original Age of Empires games providing the same look and feel, but with more features for modding and multiplayer. openage uses an open API powered by our human-readable configuration language nyan. We implement a client-server architecture with dedicated servers that supports more than 8 players. The overarching system will provide matchmaking, lobbies, server discovery and other community features. openage is a community project that values every contribution, the only requirement is your enthusiasm. ...
    Downloads: 1 This Week
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  • 2
    libdatachannel

    libdatachannel

    C/C++ WebRTC network library featuring Data Channels, Media Transport

    libdatachannel is a C++ library that implements WebRTC DataChannels and ICE transports, enabling peer-to-peer communication without relying on media components. It is ideal for developers who want efficient, low-latency P2P communication for data transmission in IoT, multiplayer games, decentralized apps, or custom signaling architectures. Built for performance and minimalism, it allows fine-grained control over STUN, TURN, DTLS, and SCTP layers, with a clean and modern C++ interface.
    Downloads: 0 This Week
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  • 3
    FerrumC

    FerrumC

    A reimplementation of the minecraft server in rust

    ...By using Rust’s concurrency and safety guarantees, FerrumC runs fully multithreaded, allowing it to utilize all available CPU cores — which helps deliver smoother, low-latency, high-throughput multiplayer experiences. The project aims both at providing a fast, lean server for typical use (friends or small communities) and offering a foundation that could support large-scale servers, mod/plugin systems, and custom server configurations. FerrumC supports importing existing Minecraft worlds, making it easy for users to migrate from standard servers without losing progress. ...
    Downloads: 3 This Week
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  • 4
    Java Telegram Bot API

    Java Telegram Bot API

    Telegram Bot API for Java

    ...A bot can offer paid services or work as a virtual storefront. Create custom tools. A bot may provide you with alerts, weather forecasts, translations, formatting or other services. Build single- and multiplayer games. A bot can offer rich HTML5 experiences, from simple arcades and puzzles to 3D-shooters and real-time strategy games. Build social services. A bot could connect people looking for conversation partners based on common interests or proximity.
    Downloads: 2 This Week
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  • 5
    Melody

    Melody

    Minimalist websocket framework for Go

    ...It is designed to make real-time server features easier to build without requiring a large framework or complex setup. Developers can use it for chat systems, live notifications, dashboards, multiplayer coordination, collaborative tools, and other bidirectional communication features. Melody provides connection lifecycle hooks, message handlers, broadcasting, session management, and grouped communication patterns. It is built to feel familiar to Go developers and can be integrated into existing HTTP applications. The project is especially useful when a team needs straightforward WebSocket behavior without building connection handling and broadcast logic from scratch.
    Downloads: 0 This Week
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  • 6
    python-socketio

    python-socketio

    Python Socket.IO server and client

    ...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: 0 This Week
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  • 7
    Kanwas

    Kanwas

    Shared context board for teams and agents

    ...The platform supports real-time collaboration, visible agent tool calls, and a timeline that makes AI activity easier to follow and audit. It is designed for long-running projects where maintaining context matters as much as producing a single response. Overall, Kanwas positions itself as a multiplayer thinking space for AI-assisted research, planning, and execution.
    Downloads: 0 This Week
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  • 8
    Folia

    Folia

    Fork of Paper which adds regionized multithreading

    ...These regions run concurrently on multiple threads within a thread pool, allowing server hardware with many CPU cores to process gameplay events in parallel. This architecture significantly increases scalability for large multiplayer environments where players are distributed across different areas of the world. Because the project fundamentally changes how the server processes game logic, many existing plugins are not immediately compatible and must be adapted for the new threading model.
    Downloads: 0 This Week
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  • 9
    Briefer

    Briefer

    Dashboards and notebooks in a single place

    Briefer is an open-source collaborative data platform that brings notebooks, dashboards, and interactive data apps into a unified workspace that combines the flexibility of code with the simplicity of visual exploration. It’s designed so technical users can write Markdown, SQL, and Python side by side for data analysis, visualization, and reporting, while non-technical viewers can interact with results through inputs, dropdowns, and date pickers without writing any code. Users work in a...
    Downloads: 0 This Week
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  • 10
    Planet Mule

    Planet Mule

    Free-to-play multiplayer version of the 8-bit classic M.U.L.E.

    Planet M.U.L.E. is a free remake of the original game M.U.L.E. and a tribute to its original designers of Ozark Softscape.
    Downloads: 34 This Week
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  • 11
    TruckersMP

    TruckersMP

    A Euro Truck Simulator 2/American Truck Simulator multiplayer mod

    ...Whether you enjoy long-distance hauling or meeting other drivers across Europe and beyond, TruckersMP delivers a dynamic multiplayer atmosphere built around trucking passion and realism.
    Downloads: 220 This Week
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  • 12
    Crossfire RPG game

    Crossfire RPG game

    Cooperative multiplayer graphical RPG and adventure game

    Crossfire is a free and open-source cooperative multiplayer graphical RPG and adventure game. Set in a medieval fantasy world, it combines real-time action with traditional role-playing mechanics inspired by games such as Gauntlet, NetHack, Moria, and Angband. Players can choose from 14 races and 16 character classes, develop skills and magic, worship gods, complete quests, discover powerful artifacts, and explore thousands of interconnected maps filled with monsters, dungeons, cities, and adventures. ...
    Downloads: 74 This Week
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  • 13
    America's Army 2.5 Assist

    America's Army 2.5 Assist

    Classic America's Army

    A GUI client application for Downloading Installing and Playing Americas Army 2.5 on Windows, Mac and Linux with a new custom authorization system. On the server side a Desktop server manager for Windows, Mac and Linux and a Command line dedicated server manager for Windows and Linux. Backend server components include a replacement authorization system using the Battletracker account & stats database and a PunkBuster log streaming server which records players possible cheating activities.
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    Downloads: 137 This Week
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  • 14
    Freeciv
    Freeciv is a free turn-based multiplayer strategy game, in which each player becomes the leader of a civilization, fighting to obtain the ultimate goal: to become (or subvert) the greatest civilization.
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    Downloads: 817 This Week
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  • 15
    webmc

    webmc

    PoC Minecraft client written in Javascript

    ...By leveraging browser technologies and modern JavaScript libraries, the project demonstrates how a voxel-based game client can run using web-based graphics and networking systems. WebMC also showcases how browser-based applications can interact with multiplayer game servers using real-time communication channels. The project is primarily intended as a technical experiment and educational demonstration of browser-based game development.
    Downloads: 3 This Week
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  • 16
    Galaxy Forces V2

    Galaxy Forces V2

    A 2D multiplayer space shooter game

    A 2D multiplayer space shooter, inspired by the Amiga classic Gravity Force. Play race, mission or dogfight. Single player, with friends or against AI. There are 50+ levels and a map-editor included. Global hi-score and achievements with replays on the website. The game plays on Windows, Linux and Mac.
    Downloads: 3 This Week
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  • 17
    snake #

    snake #

    Snake with mutiplayer and AI

    this is a classic snake wrote in C# (.net 4.0) with multiplayer or AI opponent. try to challenge your friends or AI, also on network! please write a review to give me a feedback :-)
    Downloads: 0 This Week
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  • 18
    Odamex

    Odamex

    Odamex is a free, cross-platform, modern client-server Doom engine

    Odamex is a free, cross-platform (Mac, Windows, Linux) modification of the Doom engine that allows players to easily join servers dedicated to playing Doom online. The goal of Odamex is to add enhancements to Doom while still retaining that "classic Doom feel" we all know and love about the original game.
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    Downloads: 91 This Week
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  • 19
    Battle for Wesnoth

    Battle for Wesnoth

    A strategy game with a high fantasy theme

    The Battle for Wesnoth is a Free, turn-based tactical strategy game with a high fantasy theme, featuring both single-player, and online/hotseat multiplayer combat. Fight a desperate battle to reclaim the throne of Wesnoth, or take hand in any number of other adventures.
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    Downloads: 4,640 This Week
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  • 20
    KeysAndFingers

    KeysAndFingers

    multiplayer type racing

    an advanced, customizable, open source, free typing trainer with multiplayer battle mode. web version: https://keysandfingers.vercel.app docs: https://iamovi.github.io/KeysAndFingers/
    Downloads: 2 This Week
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  • 21
    Kirstens Viewers

    Kirstens Viewers

    Opensource Created Custom Viewers For Virtual Worlds like SecondLife.

    Kirsten’s Viewer is a fast, modern Third‑Party Viewer (TPV) for Second Life, registered under the official TPV directory. It’s built for creators, photographers, and advanced users who want a clean, modern viewer with a focus on high performance on high end PC's Anaglyph 3D Mode , OpenCL‑based Visual Effects, Aggressive Optimisation, vcpkg + PowerShell One‑Click Build Automation, Highly Tuned Graphics Path , Many Other Cutting‑Edge Features — ongoing experimental work, performance...
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    Downloads: 334 This Week
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  • 22
    MegaMek
    MegaMek is a networked Java clone of BattleTech, a turn-based sci-fi boardgame for 2+ players. Fight using giant robots, tanks, and/or infantry on a hex-based map. Development currently occurs on GitHub (see https://github.com/MegaMek). This SF page remains as a mirror and archive of the old issue trackers. The trackers are currently locked and new issues should be created on the GitHub page.
    Downloads: 69 This Week
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  • 23
    AssaultCube Reloaded

    AssaultCube Reloaded

    A fun realistic multiplayer free-and-open-source first-person-shooter!

    ACR is a fun realistic multiplayer free-and-open-source first-person-shooter! This project has moved to GitHub. A mirror of releases is here.
    Downloads: 26 This Week
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  • 24
    0 A.D.

    0 A.D.

    0 A.D. is a free, open-source, cross-platform real-time strategy game.

    0 A.D. (pronounced "zero ey-dee") is a cross-platform real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of ancient civilizations, each depicted at their peak of economic growth and military prowess.
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    Downloads: 376 This Week
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  • 25
    Official map editor for the multiplayer online game Subspace/Continuum. http://getcontinuum.com/
    Downloads: 0 This Week
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