Sony said in a recent PlayStation Blog post said Gran Turismo 7 would need an internet connection for its single-plyer campaign, and Polyphony Digital said an internet requirement is necessary for players to experience the main campaign mode.
The news comes shortly after Sony announced GT7's release date during the PlayStation Showcase 2021. Speaking with Eurogamer, GT creator Kazunori Yamauchi said that the decision was made to prevent cheating in the game.
"The requirement for the online connection isn't specific to the Cafe per se. It's just to prevent cheating overall from people trying to modify the save data, so that's the reason for the online connection," he said.
Gran Turismo 7 Requires Internet Connection To 'Prevent Cheating'
"The only part of the game that doesn't require an online connection is the arcade mode, because that has no effect on the save data, so that's possible. But anything that has to do with the save data requires a connection. For example things like the livery data as well - that's something that is downloaded from the online server."
In other words, it sounds as if Gran Turismo 7 is a completely online game now, with no offline campaign. Whether that will change in some way between now and its March 4 release date remains to be seen.