Microsofts Xbox One was in second place with 115,000 units sold, though Sony is yet to release specific sales numbers for the PS4. NPD analyst Liam Callahan tells VentureBeat that together, the PS4 and Xbox One have more than doubled the sales managed by the PS3 and Xbox 360 in their equivalent six-month launch periods. Microsoft has a weapon up its sleeve While Respawn Entertainments Titanfall was the best-performing game over April, thats thanks to the release of an Xbox 360 version to supplant the original Xbox One launch;