http://www.bonegilla.com.au/research/suitcase/
how to make this type of game 2d in unity as in the above link
You’ll need to learn how to use Unity’s GUI system. I don’t have any tutorial in mind, but here are some functions you’ll have to use :
The tricky part will be the logic of the game obviously. I cannot give much advices, except that you will need arrays. Learn about them if you don’t master them already.