Flecs
Official Link: https://www.flecs.dev/flecs/
Source code link: https://github.com/SanderMertens/flecs
Description: Flecs is a fast and lightweight Entity Component System that lets you build games and simulations with millions of entities.
Size: Small (<200mb)
Source License: Open Source
Price Model: Completely Free
Last Release Version: 4.1.1
Last Release Date: Aug. 23, 2025
Development Platforms: Windows Mac Linux
Publishing Platforms:
Programming Languages: C++ C
Genres: 2D 3D Agnostic
Features: ECS
Entry Last Updated: Aug. 26, 2025
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