The author of the text created a Wordle-like game called SHEETLE in Google Sheets, using lesser-known features such as IMPORTDATA, Recalculation and Iterative calculation to automate tasks, and Hidden ranges to condense results. The author found that by approaching the project like an art project and trying new things, they stumbled upon solutions that wouldn't have been considered otherwise. They share their experience and encourage others to try making something similar, whether it's a game or another creative project.