Andrew rollings co author of the highly successful book game architecture and design has a bs in physics from imperial college london and bristol university and has worked as a technical consultant spanning the games industry and the financial industry since 1995 ernest adams co founder of the igda is an american game design consultant currently based in england. In andrew rollings and ernest adams on game design rollings and adams 2003 for example the authors distil campbells original 17 step journey down to a more manageable and generalisable nine . Andrew rollings and ernest adams on game design chapter 7 gameplay by andrew rollings and ernest adams this is an excerpt from andrew rollings and ernest adams on game design from new riders press available now any game designer should agree that gameplay is the core of the game given an ideal world designers would probably claim that . Ernest adams one day i received a letter from andrew rollings asking if i would like to co author a book on game design andrew had already written the highly successful game architecture and design with dave morris so i knew he would be a good collaborator it didn t take me long to say yes. Andrew rollingsand ernest adams on game design introduces both students and experienced developers to the craft of designing computer and video games for the retail market the first half of the book is a detailed analysis of thekey game design elements examining game concepts and worldsstorytelling character and user interface design core