Make a ‘Choose Your Own Adventure’ game
Time A few hours, length depending! You’ll need A Mac, Twine
Twine (twinery.org) is a very low-effort game-creation tool that makes it really easy to produce text-based games that work just like Choose Your Own Adventure books. You write a page of text, including some options for what the reader could do next as links. Each link will connect to a new page of text, so you can build up a story with multiple paths quickly and easily.
Once your story is finished, the eventual product is pretty much just a web page. You could put it on your website for people to play online, or send it to people directly, who can open it in any recent web browser. MB
You too could create your very own instant classic equivalent of The Cave of Time.