Raph Koster has written at least 5 books. Their most popular book is A Theory of Fun for Game Design with 31 saves with an average rating of 4⭐.
2004 • 31 Readers • 300 pages • 4
2013 • 4 Readers • 300 pages • 3
2 Readers
2005 • 955 pages
2018 • 702 pages