This is a paid asset, but now you can download Tutorial Engine for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
Tutorial Engine v2.0.1
(Tested with Unity version 2020.3.23f1)
This plugin will let you create your tutorial steps easily and give you a really nice and easy way to display them whenever needed!
FEATURES
The Tutorial Editor let you create tutorials, add steps and save everything as JSON
Only one line of code is needed to load and display a tutorial.
Each step can focus on any GameObject you like including 3D objects, sprites and UI!
*NEW* Now includes a gradient mask for a nicer effect!
*NEW* You can now make your UI elements clickable, and force or not the user to click on it to continue (see demo)
DEMO
WebGL Demo
SUPPORT FORUM AND FEATURE REQUESTS :
https://support.exoa.fr