The Sensational December Machine is a "short interactive story about an inventor and her unusual new creation." The brief interactive story took three weeks to create and includes hand-drawn art and text as well as "dynamic music" that evolves alongside the story provided by Daniel Olsén, the composer for Device 6 and Year Walk. "We hope you'll snuggle up with this little seasonal, and very three-dimensional, tale in fullscreen mode," the developer added. "Perhaps with some good headphones, and a warm drink by your side." The Sensational December Machine can be downloaded through Simogo's website.