For Part Three of the GAMBIT Summer Summit which occurred back on July 6th, 2011features Owen Macindoe from the Singapore-MIT GAMBIT Game Lab and his lecture on "Cooperative planning for AI in games". Every summer at the Singapore-MIT GAMBIT Game Lab, students from Singapore and the US work with GAMBIT researchers and development teams on novel game concepts, and visiting researchers spend that time research gaming related topics across a variety of fields. Back on July 6th, 2011, we drew back the curtains in the middle of the summer to provide insights into our current game development and research activities during the inaugural GAMBIT Summer Summit.