Showing 457 open source projects for "multiplayer"

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  • 1
    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: 32 This Week
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  • 2
    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: 18 This Week
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  • 3
    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: 7 This Week
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  • 4
    minecraft-world-downloader

    minecraft-world-downloader

    Download Minecraft worlds, extend server's render distance. 1.12.2

    A Minecraft world downloader that works as a proxy server between the client and the server to read & save chunk data. Download multiplayer worlds by connecting to them and walking around. Chunks can be sent back to the client to extend the render distance.
    Downloads: 17 This Week
    Last Update:
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  • 5
    GeyserMC

    GeyserMC

    A bridge/proxy allowing you to connect to Minecraft

    Geyser is an open-source proxy and protocol translation tool that enables cross-platform multiplayer between Minecraft: Java Edition servers and Minecraft: Bedrock Edition clients. The project works by translating network packets between the two different game protocols so that players using Bedrock Edition devices such as consoles, mobile phones, or Windows editions can connect to servers originally designed for Java Edition.
    Downloads: 25 This Week
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  • 6
    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: 25 This Week
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  • 7
    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: 11 This Week
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  • 8
    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: 0 This Week
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  • 9
    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: 0 This Week
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  • 10
    Crossfire RPG game

    Crossfire RPG game

    Cooperative multiplayer graphical RPG and adventure game

    Crossfire is a free, open-source, cooperative multi-player RPG and adventure game. Since its initial release, Crossfire has grown to encompass over 150 monsters, 3000 areas to explore, an elaborate magic system, 14 races, 16 character classes, and many powerful artifacts scattered far and wide. Set in a fantastical medieval world, it blends the style of Gauntlet, NetHack, Moria, and Angband.
    Downloads: 66 This Week
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  • 11
    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: 41 This Week
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  • 12
    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.
    Downloads: 161 This Week
    Last Update:
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  • 13
    LandsDiscordBot

    LandsDiscordBot

    Adds Discord Functionality to Lands.

    This plugin adds Discord functionality to the spigot plugin Lands. It allows land owners to create a channel for their land so they can chat from Discord with their land members online at the Minecraft server. Also you can view top lands in Discord, receive land and war notifications and more to come.
    Downloads: 8 This Week
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  • 14
    PolanieOnLine
    PolanieOnLine is multiplayer online 2D game using Java and SQL.
    Downloads: 9 This Week
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  • 15
    Master of Magic - IME

    Master of Magic - IME

    Multiplayer Java rewrite of Simtex's classic game Master of Magic

    This is a multiplayer client/server java rewrite of Microprose/Simtex's classic DOS turn based strategy game Master of Magic. Latest versions now require Java 25, however since a lot of folks have been having trouble setting this up, I am now providing 2 versions, one with a JRE included in the download, and one without. Beyond this, it should just be as simple as unzipping the file and running server.bat to get the server running locally, and client.bat to start up the client. ...
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    Downloads: 30 This Week
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  • 16
    2D isometric MMORPG using the SDL framework. Daimonin offers a free public server at https://www.daimonin.org . A Unity client is also in active development.
    Downloads: 9 This Week
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  • 17
    jfCraft

    jfCraft

    jfCraft : Yet Another Minecraft Clone

    jfCraft is Yet Another Minecraft Clone built with the JavaForce library. Built from the ground up to look like the real thing. Uses the Faithful texture pack. Complex blocks and entities are loaded from Blender files. Now includes a built-in VoIP conference like TeamSpeak. This game is incomplete for now. The plan is to recreate the game in full and then go way beyond with plugins to create much more.
    Downloads: 8 This Week
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  • 18
    FreeCol

    FreeCol

    Colonize the New World.

    FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization. The objective of the game is to create an independent nation. You start with only a few colonists defying the stormy seas in their search for new land. Will you guide them on the Colonization of a New World? The last stable version release can be found here: https://sourceforge.net/projects/freecol/files/latest/download The latest test pre-release of the next version can be found...
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    Downloads: 400 This Week
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  • 19
    Domination (Risk Board Game)

    Domination (Risk Board Game)

    Domination is a game that is a bit like the board game Risk

    Domination is a game that is a bit like the well known board game of Risk or RisiKo. It has many game options and includes many maps. Written in java it includes a map editor, a simple map format, multiplayer network play, single player, hotseat, 5 user interfaces and many more features, it works in all OSs that run java 1.5 or higher, iOS and Android.
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    Downloads: 113 This Week
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  • 20
    Online Multiplayer Games Lobby written in java, the client lib can be added to any java game, and the server runs on any java enabled computer.
    Downloads: 0 This Week
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  • 21
    Mech Station Beta

    Mech Station Beta

    Mech Station Beta - Tower Defense like Game

    ...Developed solo over half a year, with 500 KB of source code and AI-generated graphics. As you can see from the screenshots, the game is designed in a pixel art style. One of the planned features is multiplayer. Your feedback is welcomed.
    Downloads: 0 This Week
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  • 22
    Xonotic

    Xonotic

    Superproject containing build scripts and tools to download assets

    ...Born as a community fork of the Nexuiz project to preserve open development principles, Xonotic runs on an enhanced version of the DarkPlaces engine and supports Windows, macOS, and Linux platforms with no installation required beyond extracting the game files. Players can enjoy a wide variety of multiplayer game modes—from traditional deathmatch and team captures to experimental variations like Nexball and Freeze Tag—each designed to exploit high mobility and deep map knowledge. The game includes dozens of official and community-created maps, robust server browsing, customizable HUD and controls, and even an integrated statistics system called XonStat for tracking performance.
    Downloads: 2 This Week
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  • 23
    XSwing Plus

    XSwing Plus

    Classic arcade game remake of Swing Plus -Total Mindcontrol

    XSwing Plus is a free remake of the arcade game Swing Plus -Total Mind Control. It's written in Java an will run on Windows, Linux & Mac. When it's done, the easy, fast, clever and addictive game play will be back in single & multi player mode. The Project is moved to 👉 https://github.com/TobseF/XSwing-Plus
    Downloads: 2 This Week
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  • 24
    Risk
    Risk has been renamed to Domination.
    Downloads: 2 This Week
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  • 25
    DynamicClient (Minecraft)

    DynamicClient (Minecraft)

    A Hack Client created from curseforge creators since 2021

    Dynamic Client is a minecraft hacked client that improve's the experience of the player, It has mods that was used for testing anti-cheats of servers but we changed it to be hacked client because making a client just to test anti-cheats is Boring. Announcement: 1.9.11 has been released! NOTE: This requires you to have a Minecraft launcher such as TLauncher to use the hack client. it also shows how anyone can create their own client, without coding as you only need ac-credit the mod...
    Downloads: 89 This Week
    Last Update:
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