Play Entry 19

 Roberts and his col- leagues found in analyzing several hundred of these distinct culture summaries that, first, games of strategy tended to exist in more complex cultures and, second, a more positive attitude toward games of chance tended to accompany more positive religious feelings.(Sutton-Smith 2008; 101) 

http://www.journalofplay.org/sites/www.journalofplay.org/files/pdf-articles/1-1-article-sutton-smith-play-theory.pdf