This session dissects key developer-led experiments that dramatically impacted revenue, virality and engagement on the Facebook Games App, a top 15 Facebook game portal with over 30 million users. Developers will discuss the challenges, results and lessons learned from game and platform experiments.  The experiments ranged from new game mechanics and features to deep technical optimizations for performance and reliability.  The speakers will inspire developers to test and iterate upon new ideas within their own games and detail the reporting and metrics needed for success.