Agent is an unreleased stealth action game under development by Rockstar North that was originally announced for the PlayStation 3.

Michael Shorrock, Sony Computer Entertainment America's director of third-party relations, wrote on the official U.S. PlayStation Blog: "As part of our long standing relationship with Rockstar, and the incredible success for both companies with the cultural icon that is Grand Theft Auto we've agreed to the PlayStation exclusive rights of the next great franchise from the Rockstar studios."

[3] Ben Feder, the then-president of Take-Two Interactive (Rockstar's parent company), said that the game would be "genre-defining" and "a whole new way of experiencing videogames that we haven't really seen before".

[10] However, Sony Computer Entertainment America's chief executive officer (CEO), Jack Tretton, said at E3 2011 that he was unsure over Agent's PlayStation 3 exclusivity and that it was a decision for Rockstar Games to make.

[12] On 1 August 2012, when asked about Agent at Take-Two Interactive's financial report for the first quarter of 2013, chairman and CEO Strauss Zelnick said "we haven't announced anything about that title".

[19][20][21] In December 2015, a few new screenshots from between 2009 and 2010 were leaked by former Rockstar North artist Darren Charles Hatton on his online portfolio.

[24] On 27 August 2017, images of concept art were allegedly leaked online, including depictions of a snowy alpine setting and apparent character sketches.