How could i use a gameObject such as a Core?

Unity Engine
1

There’s Cube/Sphere/Capsule/… in Menu “GameObject–Create Other”

how could i use a GameObject such as a Cone?

2

I assume you meant “Cone”. Unity provides a handful of primitives. If you need other primitives you can create them in a 3d app. Also there might be a primitives package on the Asset Store.

3

sorry i make a mistake “Core”–>“Cone”

4

I get it , Thanks