A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
You can refer to this simple example here: https://medium.com/@div5yesh/turn-based-multiplayer-games-in-unity3d-using-unet-abcd8360ddd5
Take a look at a simple code example here: Turn-based Multiplayer Games in Unity3D using UNet – Divyesh Chitroda – Medium. No asset or framework...