Games or gamification (game thinking) can be a powerful approach for boosting engagement and motivation in learning. However, without understanding why and how game elements work, they can backfire. Come to this session to learn how to use a deliberate play worksheet to analyze any games or design your own. New to games? No problem! This session was presented at the ATD21 Conference, held @Home and @HQ, in Salt Lake City, on August 28 - September 1, 2021.