Sample answers may be downloaded as a zip file.
There is another set of pages similar to this, about making a card game (Spider solitaire). It may be found here....
A collection of games and tools using the techniques just described may be found here and some of them have their source files available for you to download, as working examples. They are on a site called itch.io which not only has many more examples of games but also has a page listing game jams: challenges that anyone can join in. Some of them really are for beginners, so why not have a go?