Koster, Raph,  1971- <br/><br/>
A theory of fun for game design / 
by Raph Koster. 
 - 2nd. ed. 
 - Sebastopol, Calif. :  O'Reilly Media,  c2014. 
 - 244 p. :  col. ill. 
<br/><br/><label>ISBN: </label>9781449363215 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer games--Design<br/>Computer games--Social aspects
<br/><br/><label>LC Class. No.: </label>QA76.76.C672  / K677T 2014