This document discusses intrinsic motivation and how it relates to gamification. It defines intrinsic motivation as doing an activity for its own sake rather than for external rewards. Extrinsic motivation involves doing something to get a separable outcome. The document proposes that intrinsic motivation comes from four factors: relatedness, autonomy, mastery, and purpose. It defines each of these factors and gives examples of how they can be supported through gamification. It introduces the RAMP model, which depicts these four intrinsic motivators as layers in supporting long-term engagement. The document argues that while extrinsic rewards have their place, intrinsic motivation through relatedness, autonomy, mastery and purpose is key to sustained participation.