Rika is basically Unity's system design + Unreal's philosophy, i.e. components + STM.

A naive workflow is:

Blender -> Blender custom export script -> 

    scene.json

-> Rika import script -> Rika

The Rika package is made of:

• Type
• Asset
• Engine
• Renderer
• Components

What's unique about Rika is everything is in STM, so no locks and massively scalable.