The project contains the core implementation and the basic functionalities of a turn-based game working in a clean repository, so every time a new project/prototype comes along you may use this implementation instead rebuilding the basic pass turn mechanics.

it is a Unity3 2019.2.7f2 project.

It contains:

1. Two players, Top and Bottom; (can be extended to more players)
2. Events such as Start and End match integrated with an UI;
3. Events like Player Started and Finished Turn also integrated with a simple UI;
4. Restart point.

I am not going to go further with details about the implementation because you can check the repository on GitHub.

I also made a example project in this link using the idea.

Download the package, import TMPro stuff  and feel free to use it. :D