alecthomas/entityx

Health v2 · maintenance only

Adoption not part of the score

2342 stars · 301 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

EntityX is a fast, type-safe Entity Component System (ECS) library for C++11 that decouples entity logic and data from entity objects. It provides type-safe component management and event delivery, originally built during the development of a 2D space shooter.

Use cases

• manage game entities with an entity-component-system in C++
• decouple game object data from logic in a C++ game
• build a 2D game with a cache-friendly ECS architecture
• handle events between game entities in C++
• prototype game architecture with type-safe components
• benchmark ECS implementations against Anax or Artemis

When to choose

• you are writing a C++ game or simulation and want a lightweight, type-safe ECS
• you need cache-friendly component storage for many entities
• you want a minimal C++11 library with no Boost dependency

When to avoid

• you need a full game engine with rendering, physics, and audio built in
• your project requires modern C++17/20 features or active feature development
• you are working in a language other than C++

Facets

library · maturity maintenance

game-engine simulation graphics simulation cpp cross-platform entity-component-system ecs cpp11 game-architecture game-development

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