Open Source Gaming Tools

Godot ★ 119K

Free 2D and 3D game engine for cross-platform projects

three.js ★ 117K

JavaScript 3D Library.

imgui ★ 77K

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

bevy ★ 49K

A refreshingly simple data-driven game engine built in Rust

raylib ★ 36K

A simple and easy-to-use library to enjoy videogames programming

GDevelop ★ 28K

Create 2D and 3D games without coding, powered by AI assistance

Babylon.js ★ 26K

Babylon.js is a powerful, beautiful, simple, and open game and rendering engine packed into a friendly JavaScript framework.

libgdx ★ 26K

Desktop/Android/HTML5/iOS Java game development framework

OpenRA ★ 18K

Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Li

aframe ★ 18K

:a: Web framework for building virtual reality experiences.

engine ★ 17K

Powerful web graphics runtime built on WebGL, WebGPU, WebXR and glTF

MonoGame ★ 15K

Free, open-source framework for cross-platform game development

ebiten ★ 14K

A dead simple 2D game engine for Go

entt ★ 13K

Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more

Pumpkin ★ 13K

Empowering everyone to host fast and efficient Minecraft servers

boardgame.io ★ 12K

State Management and Multiplayer Networking for Turn-Based Games

JoltPhysics ★ 12K

A multi core friendly rigid body physics and collision detection library. Written in C++. Suitable for games and VR applications. Used by Horizon Forbidden West

flame ★ 11K

A Flutter based game engine.

Fyrox ★ 9.6K

3D and 2D game engine written in Rust

azerothcore-wotlk ★ 9.1K

Complete Open Source and Modular solution for MMO

stride ★ 7.9K

Stride (formerly Xenko), a free and open-source cross-platform C# game engine.

zinx ★ 7.8K

A lightweight concurrent server framework based on Golang.

colyseus ★ 7.5K

⚔ Multiplayer Framework for Node.js

WickedEngine ★ 7.3K

3D engine with modern graphics

agones ★ 7.1K

Dedicated Game Server Hosting and Scaling for Multiplayer Games on Kubernetes

s&box ★ 6.5K

Build and play games inside a game engine that runs live

melonJS ★ 6.4K

a modern & lightweight HTML5 game engine

redot-engine ★ 6.2K

Redot Engine – Multi-platform 2D and 3D game engine

horizon ★ 5.7K

Minecraft: Java Edition 26.3 rewritten from scratch in Rust, checked against vanilla with 281 differential harnesses. Get it with the Horizon launcher.

planck.js ★ 5.3K

2D JavaScript Physics Engine

LinuxGSM ★ 4.9K

The command-line tool for quick, simple deployment and management of Linux dedicated game servers.

FXGL ★ 4.9K

Java / JavaFX / Kotlin Game Library (Engine)

ggez ★ 4.7K

Rust library to create a Good Game Easily

macroquad ★ 4.7K

Cross-platform game engine in Rust.

LittleJS ★ 4.4K

Tiny fast 2D/3D HTML5 game engine with many features and no dependencies.

LumixEngine ★ 3.9K

3D C++ Game Engine - yet another open source game engine

Terasology ★ 3.9K

Terasology - open source voxel world

godot-minimal-theme ★ 3.8K

Godot Minimal Theme

fheroes2 ★ 3.7K

fheroes2 is a recreation of Heroes of Might and Magic II game engine

armory ★ 3.4K

3D Engine with Blender Integration

murder ★ 3.4K

Murder is a pixel art ECS game engine.

Descent3 ★ 3.0K

Descent 3 by Outrage Entertainment

corona ★ 2.9K

Solar2D Game Engine main repository (ex Corona SDK)

pitaya ★ 2.8K

Scalable game server framework with clustering support and client libraries for iOS, Android, Unity and others through the C SDK.

permafrost-engine ★ 2.8K

An OpenGL RTS game engine written in C

goworld ★ 2.7K

Scalable Distributed Game Server Engine with Hot Swapping in Golang

lovr ★ 2.6K

Lua Virtual Reality Framework

ursina ★ 2.6K

A 3D and 2D game engine for Python

raylib-go ★ 2.6K

Go bindings for raylib, a simple and easy-to-use library to enjoy videogames programming.

Overload ★ 2.5K

3D game engine with lua scripting

ferrumc ★ 2.5K

A reimplementation of the minecraft server in rust.

Claw3D ★ 2.4K

Claw3D is an open source 3D engine built on OpenClaw for creating games, simulations, and high-performance 3D applications.

Excalibur ★ 2.4K

🎮 Your friendly TypeScript 2D game engine for the web 🗡️

wasmi ★ 2.3K

WebAssembly (Wasm) Interpreter - An efficient, lightweight, and deterministic WebAssembly interpreter for embedded systems and plug-in runtimes.

OpenJK ★ 2.3K

Community effort to maintain and improve Jedi Academy (SP & MP) + Jedi Outcast (SP only) released by Raven Software

flutter-unity-view-widget ★ 2.3K

Embeddable unity game engine view for Flutter. Advance demo here https://github.com/juicycleff/flutter-unity-arkit-demo

Infernux ★ 2.3K

Building a Neural Network-Native Engine (3N). Python authoring, C++ runtime, Vulkan/WebGPU. Windows, Linux, Android and Web.

zfoo ★ 2.0K

💡Extremely fast enterprise server framework, can be used in RPC, game server, web server.

pinus ★ 1.9K

A fast,scalable,distributed game server framework for Node.js, Powered by TypeScript. 一个TypeScript写的node.js分布式游戏/应用服务器框架（原型基于pomelo）。

forgottenserver ★ 1.8K

A free and open-source MMORPG server emulator written in C++

pufferpanel ★ 1.8K

PufferPanel is an open source game server management panel, designed for both small networks and personal use

NettyGameServer ★ 1.7K

使用netty4.X实现的手机游戏分布式服务器,支持tcp,udp,http,websocket链接，采用protobuf自定义协议栈进行网络通信,支持rpc远程调用,使用mybatis3支持db存储分库分表，支持异步mysql存储，db保存时同步更新reids缓存。 使用ExcelToCode工程，将excel数据生

mcrcon ★ 1.1K

Rcon client for Minecraft

hyperion ★ 1.1K

Minecraft game engine for massive custom events

kruise-game ★ 1.1K

Game Servers Management on Kubernetes

due ★ 981

基于Go语言开发的高性能分布式游戏服务器框架

panel ★ 873

A modern game server management panel built in Rust. Deploy, monitor, and manage Minecraft, Rust, and other game servers with industry-leading performance.

UeCore ★ 858

UeCore(Universe Engine Core) is an Open Source MMO RPG Framework World of Warcraft Server Engine (NOT Unreal Engine)

cherry ★ 824

🍒 Cherry — Go game server framework powered by Actor Model. Serial goroutine per actor, NATS/etcd discovery, pluggable connectors (TCP/WS/HTTP), protobuf & obj

GameFrameX ★ 770

An open-source toolbox that takes a game all the way "from idea → built → live" — Unity/Godot/Cocos/Laya clients + one .NET server. | 开源游戏全流程工具箱：Unity/Godot/Coc

Kaetram-Open ★ 752

Kaetram is an open-source 2D HTML5 MMORPG. It is an extended version of BrowserQuest (BQ).

stendhal ★ 706

Stendhal is a fun friendly and free multiplayer online adventure game with an old school feel.

pokerth ★ 694

PokerTH is a poker game written in C++/Qt.

PowerNukkitX ★ 683

Open-source, feature-rich Minecraft: Bedrock Edition server written in Java. Supports custom items, blocks, entities, full vanilla commands, advanced mob AI, an

canary ★ 666

Canary Server 15.25 for OpenTibia community.