Lego City Undercover: The Chase Begins is a prequel sandbox-style action-adventure video game, developed by TT Fusion, a division of TT Games, that was released on the Nintendo 3DS on 21 April 2013 in North America and in Europe on 26 April 2013. Unlike previous Lego titles developed by TT Games, which have been based on various licenses, the game is based on the Lego City brand and is published by Nintendo. It is the second Lego game to be published by Nintendo rather than an independent publisher such as WB Games or LucasArts