flecs ☆

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Description:
Fast entity component system for C & C++

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | @flecsdev | formulae.brew.sh

Category: Developer tools

Tags: ecs gamedev c c++ library data-oriented-design

Install: brew install flecs

About:
Flecs is a high-performance entity component system (ECS) designed for C and C++. It enables data-oriented design for complex game architectures and simulation software. The library emphasizes zero-overhead abstractions and flexible query systems for efficient data processing.

Key Features:

Zero-overhead C and C++ APIs
Highly expressive query engine
Automatic dependency management
Modular architecture with zero dependencies

Use Cases:

Game engine architecture
Real-time simulation software
High-performance computing applications

Alternatives:

EnTT – Popular C++ ECS, Flecs offers a C API and different query model
OpenECS – Alternative ECS implementation, Flecs focuses on query flexibility

Version History

Detected	Version	Rev	Change	Commit