The slides for a 20 min talk I gave in Casual Connect Tel Aviv in 2015. It introduces the Game-Watching trend and gives some quick tips for game developers & designers on how to make games fun to watch, not only fun to play. You can watch the full talk from the conference here: http://civax.net/2015/11/not-only-esports-how-to-design-games-that-are-fun-to-watch/