Resident Evil 6 received mixed reviews from critics, who praised the graphics, artificial intelligence and controls, but criticized the execution of the interwoven campaigns and departure from the survival horror roots of the franchise in favor of a more action-oriented style. It had a development staff of more than 600, making it Capcom's largest production. Resident Evil 6 was conceptualized in 2009 and entered full development the following year under Resident Evil 4 producer Hiroyuki Kobayashi. The story is centred around their four interwoven campaigns, and every campaign features a unique style in both tone and gameplay. Kennedy, Chris Redfield, Jake Muller and Ada Wong as they confront the force behind a worldwide bio-terrorist attack. It was re-released with all downloadable content for the PlayStation 4 and Xbox One in March 2016, and for the Nintendo Switch in October 2019. A major installment in the Resident Evil series, Resident Evil 6 was released for the PlayStation 3 and Xbox 360 in October 2012, and for Windows in March 2013. Resident Evil 6 is a 2012 third-person shooter video game developed and published by Capcom.