Annapurna Interactive, the video game company owned by award-winning Megan Ellison, daughter of billionaire Larry Ellison, co-founder of Oracle (NYSE:ORCL), is in turmoil after its entire staff resigned What Happened: The entire 25-member staff of Annapurna Interactive, including top executives Deborah Mars and Nathan Vella, resigned en masse, reported Business Insider. This move followed failed talks between Ellison, former Annapurna president Nathan Gary, and other executives about the possibility of the studio becoming an independent entity. Ellison established Annapurna Studios in 2011, la…