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This morning a countdown has appeared on the game's official Facebook page, ticking towards a new trailer release which looks set for Sunday, October 21 at midday BST (7am EST).

Back in May publisher Take-Two delayed the BioShock Infinite release date from this October to February 26, 2013.

At the time creative director Ken Levine said the long-awaited action RPG wouldn't be shown at this year's E3 and Gamescom shows. "That way, the next time you see our game, it will be essentially the product we intend to put in the box," he said.

The slip was allocated to a new 'opportunity' that Levine said would "make Infinite into something even more extraordinary." It's been speculated the addition in question could be a multiplayer mode.