# A Theory of Fun for Game Design

- **Author**: Raph Koster
- **Year**: 2004
- **Summary**: Koster's book argues that the core of fun is learning. Games are systems that teach us patterns in a safe and engaging way. The pleasure we derive from games is an evolutionary reward for mastering new skills. The book posits that boredom sets in once a system is fully understood, highlighting the need for continuous new challenges to maintain engagement.
- **Link**: https://www.theoryoffun.com/