RiME is an adventure puzzle video game developed by Tequila Works. You play as a young boy recently arrived on a mysterious island. A fox-like spirit guides him along his way.
You can find the wikipedia page here, though the usual warning for spoilers should apply. How Long to Beat estimates about 7 hours to completion. There does seem to be a little wiggle room, depending on how much of a completionist you are. Available on Microsoft Windows, the Nintendo Switch, PlayStation 4 and the Xbox One.
At the time of writing, and for those of us on PC, it is cheapest on Steam, sitting at 11€54.
Please be mindful of your fellow goodjers and spoiler any discussion of plot points. Have fun, everyone!
You can find the main thread over this way. We'll be playing RiME in January 2019, with an extra month behind for stragglers. Enjoy, folks!