http://pointlinesquare.com game design evolution Tue, 23 Feb 2010 06:15:02 +0000 http://backend.userland.com/rss092 en http://pointlinesquare.com/2010/02/standard-play-lengths/ http://pointlinesquare.com/2010/02/desire-vs-friction/ http://pointlinesquare.com/2009/01/games-for-a-10-attention-span-why-this-matters/ http://pointlinesquare.com/2008/08/content-communities/ http://pointlinesquare.com/2008/08/not-casual-vs-not-hardcore/ http://pointlinesquare.com/2008/07/games-for-a-10-attention-span/