The video cache offers an extensive and unauthorized look into the making of one of the biggest games in the industry. A leak of this scale is so rare that some people question its authenticity, but people familiar with the development of the game said the videos are real. The footage provides an early and rough look at plans for Grand Theft Auto VI, though the final version will look much more polished, said the people, who asked not to be named because the details are private. The hacker posted dozens of never-before-seen Grand Theft Auto VI videos to an online message board over the weekend. On the forum, the person suggested that he was the same hacker who infiltrated Uber Technologies Inc. in a high-profile incident last week. The claim has not been verified. The hacker said in a follow-up message about the upcoming Grand Theft Auto game, “I’m looking to negotiate a deal,” and raised the prospect of releasing more inside information about the project. A Take-Two representative did not respond to a request for comment outside regular hours. The last Grand Theft Auto was released in 2013 and became the most valuable entertainment property, based on the enduring popularity of its companion online game. The upcoming Grand Theft Auto VI has been in development in some form since 2014, Bloomberg reported. It will have a playful female lead for the first time in the series and will be set mostly in a fictionalized version of Miami, Bloomberg reported. Take-Two first acknowledged the game’s existence in February, a revelation that quickly sent its stock up 7%. Employees at Rockstar Games, the Take-Two studio that makes Grand Theft Auto, were stunned by the leak, people familiar with the project said. Many were dealing with the implications of the event and how management would respond to it. In July, video game maker Roblox Corp. accused a hacker of posting stolen information in an attempt to blackmail the business. Neil Druckmann, co-chairman of Sony Group Corp.’s Naughty Dog, who has been dealing with information ahead of the release of his game, Last of Us II, posted a message Sunday on Twitter seeking to reassure “my fellow developers out there affected by the most recent leak.” ©2022 Bloomberg LP