Titanfall's sequel will have a single-player campaign, though it won't release until "late this year or early next," said lead writer Jesse Stern.

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Stern told Forbes Respawn Entertainment's development team began working on the sequel in 2014, after finishing Titanfall's downloadable content."One of the shortcomings of the first game was we just did not have the mechanism to tell everyone 'here's who you are, here's where you are, and who's around you,'" Stern said. "We knew all the answers, we just could not deliver it."Back in October, Titanfall's sales passed 10 million , giving the studio flexibility in exploring the story it originally wanted to tell. Stern said Respawn is looking to "deliver a vision of grand global colonial warfare," and retell "the story of the American Revolution and the American Civil War in space."Stern also told Forbes Respawn is working in partnership with Lionsgate TV to develop a Titanfall spin-off TV series. The problem, Stern said, is its cost."It would be very expensive," he said. "We are trying to find a way to tell a story in the worlds we want to be in and produce in the TV model."Respawn founder and CEO Vince Zampella confirmed to IGN last year Titanfall's sequel will not be an Xbox exclusive , and will launch on all major platforms—PlayStation 4, PC, and Xbox One. Respawn is also partnering with Nexon to bring a new, original Titanfall game to iOS and Android , set to release sometime in 2016.

Nicole is a freelance writer for IGN. You can follow her on Twitter