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Best Open Source game engine Libraries

A curated list of the most popular GitHub repositories tagged with game engine. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1godotengine/godot

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

106,918C++
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#2ocornut/imgui

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

71,476C++
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#3bevyengine/bevy

A refreshingly simple data-driven game engine built in Rust

44,714Rust
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#4raysan5/raylib

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

31,078C
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#5BabylonJS/Babylon.js

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

25,116TypeScript
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#6libgdx/libgdx

Desktop/Android/HTML5/iOS Java game development framework

24,813Java
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#7leereilly/games

Archived — A list of games, add-ons, maps, etc. hosted on GitHub. Any genre. Any platform. Any engine.

24,536
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#84ian/GDevelop

🎮 Open-source, cross-platform 2D/3D/multiplayer game engine designed for everyone.

20,656JavaScript
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#9cocos2d/cocos2d-x

Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.x & 2.x.

18,942C++
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#10aframevr/aframe

:a: Web framework for building virtual reality experiences.

17,475JavaScript
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#11playcanvas/engine

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

14,465JavaScript
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#12SFTtech/openage

Clone of the Age of Empires II engine 🚀

14,100Python
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#13MonoGame/MonoGame

One framework for creating powerful cross-platform games.

13,182C#
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#14hajimehoshi/ebiten

A dead simple 2D game engine for Go

12,970Go
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#15luanti-org/luanti

Luanti (formerly Minetest) is an open source voxel game-creation platform with easy modding and game creation

12,349C++
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#16skypjack/entt

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

12,299C++
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#17boardgameio/boardgame.io

State Management and Multiplayer Networking for Turn-Based Games

12,267TypeScript
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#18jrouwe/JoltPhysics

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 and Death Stranding 2.

9,685C++
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#19egametang/ET

Unity3D Client And C# Server Framework

9,672C#
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#20cocos/cocos-engine

Cocos simplifies game creation and distribution with Cocos Creator, a free, open-source, cross-platform game engine. Empowering millions of developers to create high-performance, engaging 2D/3D games and instant web entertainment.

9,416C++
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#21o3de/o3de

Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D engine that enables developers and content creators to build AAA games, cinema-quality 3D worlds, and high-fidelity simulations without any fees or commercial obligations.

8,957C++
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#22FyroxEngine/Fyrox

3D and 2D game engine written in Rust

8,884Rust
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#23turanszkij/WickedEngine

3D engine with modern graphics

6,894C
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#24FlaxEngine/FlaxEngine

Flax Engine – multi-platform 3D game engine

6,627C#
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#25BoomingTech/Piccolo

Piccolo (formerly Pilot) – mini game engine for games104

6,550C++
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