You can download the images used in the game development chapter of the “Beginner’s Guide to iOS 14 App Development Using Swift 5, SwiftUI and UIKit” book by clicking here.
You can use the native archive utility or WinZip in Mac OS to open the compressed file. You will need to use the password given on page 252 of the book to open this archive file.
Please do not hesitate to contact me in case you experience problems. Thanks.