Fluid is a feature-complete ECS.

Providing high performant modules, Fluid is my attempt at making a proper ECS.
It consists of Entities to which Component can be attached.
Components are simple data bags with optional modifier logic.
They define the behaviour of the Entity, which is executed by Systems.

It was created with performance in mind, avoiding unneccesary repooling.
It avoids memory allocation and makes use of numerical keys for fast access.

Fluid is completely finished.
The documentation for Fluid is in development.

Downloads and links