Search Results for "online multiplayer"
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Showing 430 open source projects for "online multiplayer"
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Warzone 2100
Free and open source real-time strategy game
...Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles. Play versus your friends on a local network, or try your hand at online multiplayer with an integrated lobby. Play versus AI bots in local skirmishes (or as added teammates/enemies in multiplayer), and practice your skills with endless replayability. Over 400 different technologies yield an extensive tech tree with many paths to choose from. Customize your units with a flexible design system that allows for a wide variety of possible units and tactics. ... -
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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. -
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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. ... -
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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. -
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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. -
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chess-tui
Play chess from your terminal
...It supports local two-player games as well as playing against any UCI-compatible chess engine, giving users flexibility to challenge engines like Stockfish or GNU Chess. For online play, it integrates with Lichess, enabling authentic multiplayer games and token-based account connections from within the terminal environment. The application also includes customization options such as different board skins and helper menus to assist players with move entry or engine configuration. With its focus on interactive play and accessibility through simple installation via package managers or direct cargo builds, it targets both casual players and power users who prefer keyboard-driven or remote environments. -
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YimMenu
YimMenu, a GTA V menu protecting against a wide ranges
YimMenu is an open-source modification menu for Grand Theft Auto V designed to enhance gameplay while providing protection against common crashes and disruptions encountered in online sessions. It operates as an injected module that interacts directly with the game engine, allowing users to access a wide range of in-game controls and customization options through an overlay interface. One of its primary goals is stability, offering safeguards against malicious or unstable interactions that can occur in multiplayer environments. ... -
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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... -
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Fish Folk: Jumpy
Tactical 2D shooter in fishy pixels style. Made with Rust-lang
Fish Folk: Jumpy is a tactical 2D shooter, played by up to 4 players online or on a shared screen. Aim either left or right; the rest is up to clever movement and positioning in this fish-on-fish brawler. Jumpy runs in the browser. You can play a web demo to try out the game, without needing to install anything on your computer. We recommend using the Chrome browser or other derivatives for best performance, or if you have issues with other browsers. -
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DiIiS Project
Fully-functional open-source server implementation for Diablo 3
...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. It includes features like dungeon generation, artificial intelligence for enemies, and support for both campaign and adventure modes. The server is designed to be deployable locally or over LAN, enabling cooperative play in controlled environments. ... -
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XMage
Magic Another Game Engine
XMage allows you to play Magic against one or more online players or computer opponents. It includes full rules enforcement for over 20 000 unique cards and more than 50.000 reprints from different editions. 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. ... -
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Multi Theft Auto: San Andreas
Multi Theft Auto is a game engine
Multi Theft Auto (MTA) is a software project that adds network play functionality to Rockstar North's Grand Theft Auto game series, in which this functionality is not originally found. It is a unique modification that incorporates an extendable network play element into a proprietary commercial single-player PC game. Multi Theft Auto is based on code injection and hooking techniques whereby the game is manipulated without altering any original files supplied with the game. The software... -
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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. -
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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. ... -
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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. -
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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. -
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TruckersMP
A Euro Truck Simulator 2/American Truck Simulator multiplayer mod
TruckersMP is a popular multiplayer modification that brings a shared online experience to the world of truck simulation. It connects thousands of players in a persistent environment where realism, cooperation, and community come together on the open road. Designed for stability and smooth online play, TruckersMP enhances immersion by turning single-player trucking into a living, social experience. -
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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. -
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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. -
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Scorched Earth Online War
Online War system for IL-2 Sturmovik and Iron Front in ArmA 2
SEOW is a dynamic multiplayer campaign system for running on-line wars using the IL-2 combat simulator together with Iron Front in ArmA 2. SEOW is a free add-on for IL-2 and Iron Front in ArmA 2 released under the GNU Public Licence. For an install of SEOW, you need the MP, the DB and the DCS, 3 downloads in total. Check out the Files tab above for direct downloads. -
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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. -
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Garry's Mod: GMod APK
Free APK version of Garry's Mod, the Android sandbox physics game
...The game offers a versatile spawn menu where you can create objects, non-player characters, props, and ragdolls, then manipulate them with a physics gun. Unlike many sandbox games, Garry’s Mod supports both offline and online multiplayer modes, enabling players to create and share unique game modes ranging from mystery to action. Its user-friendly interface makes it easy to customize controls and gameplay, making it accessible to newcomers and seasoned creators alike. Players can enjoy popular modes like Morbus, Prop Hunt, and Dogfight or design their own imaginative scenarios. ... -
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Vegas X APK for Android
Virtual Las Vegas casino experience with slot machines and other games
...The game features realistic, colorful graphics and immersive sound effects that replicate the feel of a real casino floor. Vegas X includes multiple game modes and online multiplayer options, allowing players to compete with friends and climb leaderboards. While the game is free to play, it offers in-app purchases for virtual coins and advantages to accelerate progress. Some users may find the monetization aggressive, with frequent prompts for purchases, and gameplay is mainly traditional slot simulation without innovative mechanics. ... -
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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.
