What if an Artificial Intelligence was trying to figure out if you were sentient? What if that same AI asked you to kill it? What if you could play a game in short sessions over the course of a year? These questions led us to build Sentience, an experimental narrative game. We used the Yarn dialogue editor to build the game in under 24 hours during the CoCA 2016 Art Marathon and Auction. The only copy in existence was sold to one lucky bidder installed on a Google Tab.