Microsoft sends out invites to an Xbox event on May 21. That's when the company will likely reveal its next video game console.
— May 1: Activision says the next installment in its successful "Call of Duty" franchise will be titled "Call of Duty: Ghosts" and feature a new story and characters. It will be released Nov. 5 for PC, PlayStation 3, Xbox 360 and next-generation consoles.
— May 8: Activision Blizzard Inc.
— May 9: Sony Corp. (PlayStation)
— May 13: Take-Two Interactive Software Inc.