This document discusses how games and gamification can support the Quantified Self movement. The Quantified Self involves self-tracking one's personal data in order to gain self-knowledge and enable experimentation. While self-tracking is not new, the Quantified Self community shares data and learns from self-experiments. Games are engaging due to interesting choices and quantifiable outcomes. Both games and Quantified Self utilize personal data, so games could potentially support the Quantified Self by facilitating personalized experiments, promoting community, and influencing lifestyle and behavior changes. This may lead to meaningful health outcomes if the games drive engagement that generates useful self-tracking data and informs healthy knowledge and actions.