Awesome ECS

A curated list of Entity-Component-System (ECS) libraries and resources.

ECS Libraries
Applications powered by ECS
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Legend: 🟢 Active (<1yr) · 🟡 Slow (1-2yr) · 🔴 Stale (>2yr) · 💀 Archived

ECS Libraries

Libraries and frameworks implementing the Entity-Component-System pattern.

C/C++

💀 anax - Open source C++ entity system. ⭐ 463
💀 ECS - C++ single-header entity component system library. ⭐ 482
🔴 ecs.hpp - A single header C++14 entity component system library. ⭐ 41
🔴 ecst - Experimental C++14 multithreaded compile-time entity-compnent-system library. ⭐ 491
🔴 EntityFu - A simple, fast entity component system written in C++. ⭐ 86
🔴 EntityPlus - C++14 entity component system. ⭐ 191
🟢 EntityX - Fast, type-safe C++ entity component system. ⭐ 2.3k
🟢 entt - Fast and reliable entity-component system. ⭐ 12.3k
🟢 Flecs - A Multithreaded Entity Component System written for C89 & C99. ⭐ 8.0k
🟢 Gaia-ECS - Fast and type-safe C++17 archetype-based entity component system. ⭐ 118
🔴 Ginseng - An ESC library designed for use in games. ⭐ 56
🔴 goomy - A tiny, experimental ECS framework. ⭐ 14
🔴 Kengine - Game engine with an Entity-Component-System (ECS) architecture. ⭐ 616
🔴 matter - C++17/20 ECS implementation. ⭐ 21
🟢 mustache - A fast, modern C++ entity component system. ⭐ 68
🟢 pico_ecs - Single-header and cross-platform ECS. ⭐ 490
🟢 WickedEngine’s ECS - WickedEngine’s ECS implementation. ⭐ 6.9k

C#

🟢 Arch - A high-performance Archetype & Chunks Entity Component System for game development and data-oriented programming. ⭐ 1.6k
🟡 DefaultEcs - ECS for syntax and usage simplicity with maximum performance. ⭐ 746
🟢 DragonECS - ECS for Unity and .NET. ⭐ 292
🔴 Entitas - The Entity Component System Framework for C# and Unity. ⭐ 7.6k
🟢 Fennecs - … the tiny, tiny, high-energy Entity-Component System! ⭐ 411
🟢 Frent - Data oriented ECF with an ECS api for C#, Godot, and Unity. ⭐ 156
🟢 Friflo Engine ECS - ECS for .NET with focus on performance, cache locality and DX. ⭐ 536
🔴 LeoEcsLite - Lightweight C# Entity Component System framework. ⭐ 60
🟢 Massive ECS - Bitset-based ECS with rollbacks. C# library and Unity package. ⭐ 189
🟢 ME.BECS - ECS for Unity with full game state automatic rollbacks. ⭐ 243
🟢 Morpeh - ECS Framework for Unity Game Engine and .NET Platform. ⭐ 634
🟢 Static ECS - C# Hierarchical Inverted Bitmap ECS framework. ⭐ 142
🟢 Svelto.ECS - Lightweight data oriented entity component system framework. ⭐ 1.4k
🟢 TinyEcs - A tiny bevy-like archetype-style ECS library for dotnet. ⭐ 135

Common Lisp

🔴 beast - Basic Entity/Aspect/System Toolkit. ⭐ 30
🔴 cl-ecs - An implementation of the Entity-Component-System pattern mostly used in game development. ⭐ 8
cl-fast-ecs - Blazingly fast Entity-Component-System microframework. gitlab

Dart

🔴 Fast ECS - Simple and fast Entity-Component-System (ECS) library written in Dart. ⭐ 17

Elixir

🟡 ECSx - An ECS framework for Elixir. ⭐ 257

Python

🟢 esper - A lightweight Entity System for Python. ⭐ 671

Rust

🟢 bevy_ecs - Simple to use, ergonomic, fast, massively parallel, opinionated, and featureful written in Rust. ⭐ 44.6k
🟢 hecs - High-performance, minimalist entity-component-system. ⭐ 1.2k
🔴 legion - High performance Rust ECS library. ⭐ 1.7k
🟢 shipyard - Entity Component System written in Rust. ⭐ 834
🟡 specs - Parallel entity component system written in Rust. ⭐ 2.6k

Go

🟢 Ark - An archetype-based Entity Component System for Go. ⭐ 215
🔴 ecs - A Go-implementation of the Entity-Component-System paradigm. ⭐ 331

Lua

🟢 Concord - A feature-complete ECS library. ⭐ 303
🟡 ECS Lua - A fast and easy to use ECS engine for game development. ⭐ 224
🟢 evolved.lua - Evolved ECS (Entity-Component-System) for Lua. ⭐ 172
🔴 Nata - Entity management for Lua. ⭐ 51
🔴 tiny-ecs - Entity Component System for Lua that’s simple, flexible, and useful. ⭐ 773

Java

🔴 Artemis-odb - A continuation of the popular Artemis ECS framework. ⭐ 827

Julia

🟢 Ark.jl - An archetype-based Entity Component System (ECS) for Julia. It is a port of the Go ECS Ark. ⭐ 54

Kotlin

🟢 Fleks - Fast, lightweight, multi-platform entity component system in Kotlin. ⭐ 246

JavaScript / TypeScript

🟢 becsy - A multithreaded Entity Component System (ECS) for TypeScript and JavaScript, inspired by ECSY and bitecs. ⭐ 285
🟢 bitECS - Functional, minimal, data-oriented, ultra-high performance ECS library. ⭐ 1.3k
💀 ECSY - Entity Component System for javascript. ⭐ 1.1k
🔴 miniplex - The gentle game entity manager, focused on ease of use and developer experience. ⭐ 983
🟡 Thyseus - An archetypal Entity Component System, built entirely in Typescript. ⭐ 86

Zig

🟢 Comptime ECS - Comptime-defined ECS implementation in Zig. ⭐ 4
🟢 knoedel - Data oriented application framework written in Zig (ECS). ⭐ 27
🟡 mach-ecs - Entity Component System from first-principles designed for Zig. ⭐ 35
🟢 ZCS - An archetype based entity component system written in Zig. ⭐ 145
🟢 Zig ECS - A Zig port of the fantasic Entt. ⭐ 393

Haskell

🟢 apecs - A fast, extensible, type driven Haskell ECS framework for games. ⭐ 408

Applications powered by ECS

Game Engines

Game engines built on ECS architecture.

C++

🟢 crown - General purpose data-driven game engine. ⭐ 27
🔴 Engine - Basic cross-platform 3D game engine. ⭐ 301
🟢 halley - A lightweight game engine written in modern C++. ⭐ 3.8k
🔴 igneous - Open source game engine written in C++. ⭐ 51
🔴 kengine - Game engine focused on ease-of-use, runtime extensibility and compile-time type safety. ⭐ 616
🟢 Lina Engine - Modular, tiny and fast C++ game engine, aimed to develop 3D desktop games. ⭐ 890
🟢 Lumos - Cross-Platform C++ 2D/3D game engine. ⭐ 1.5k
🟡 MxEngine - C++ open source 3D game engine. ⭐ 1.2k
🟢 Nazara Engine - Cross-platform framework aimed at real-time applications requiring audio, 2D and 3D real-time rendering, network and more. ⭐ 812
🟢 nebula - Open-source and free-to-use modern C++ game engine. ⭐ 1.1k
💀 shiva - Modern Cross-Platform C++ Engine with modularity. ⭐ 159
🔴 Sparky - Cross-Platform High Performance 2D/3D game engine. ⭐ 1.2k
🟢 supernova - Game engine for 2D and 3D projects with ECS and data-oriented design. ⭐ 376
🟡 Usagi - Hierarchical component entity system based game engine. ⭐ 53
🟢 WickedEngine - 3D engine with modern graphics. ⭐ 6.9k

Go

🟢 Engo - A cross-platform game engine written in Go following an interpretation of the Entity Component System paradigm. ⭐ 1.8k

Rust

🟡 Ambient - The multiplayer game engine. ⭐ 3.9k
💀 Amethyst - Data-oriented and data-driven game engine written in Rust. ⭐ 8.0k
🟢 Bevy - A refreshingly simple data-driven game engine built in Rust. ⭐ 44.6k
🟢 Bones - An easy-to-use game engine for making real games. ⭐ 292

Zig

🟢 mach - Game engine & graphics toolkit for building high-performance, truly cross-platform, robust & modular games, visualizations, and desktop/mobile GUI apps. ⭐ 4.6k

Graphics Engines

Graphics and rendering engines using ECS.

C++

🔴 bs::framework - Modern C++14 library for the development of real-time graphical applications. ⭐ 1.8k
🟢 The Forge - Cross-Platform Rendering Framework with support for PC Windows, Linux, Ray Tracing, macOS/iOS, Android, XBOX, PS4, PS5, Switch, Quest 2. ⭐ 5.5k

Physics Libraries

Physics simulation libraries organized as ECS.

C++

🟢 edyn - A real-time physics engine organized as an ECS. ⭐ 750

Other Resources

Benchmarks

Performance benchmarks comparing ECS frameworks.

🔴 CSharpECSComparison - Benchmarks of common ECS Frameworks for C#. ⭐ 53
🟢 ECS C# Benchmark - Benchmarks of the main ECS Frameworks for: C#. ⭐ 174
🟢 ECS C# Benchmark - Common uses-cases - Benchmark many common use cases in the simplest and most performant variant. ⭐ 43
🟡 ecs_benchmark - Benchmarks of common ECS (Entity-Component-System)-Frameworks in C/C++. ⭐ 280
🟢 Lua ECS Library Benchmark - Benchmarks of common ECS Frameworks in Lua. ⭐ 6