While earlier Rockstar Games used Social Club, it wasn't mandatory. Then only you will be able to move forward to gameplay session," an email from Rockstar Games' customer support reads. "I would like to inform you that you will be able to play on your PS4 Pro and reading your previous query, you will need one-time Internet connection while signing into Social Club to login to the game. The Rockstar Games Social Club is, as the name suggests, a social network service (and digital rights management tool) for games from the developer such as GTA V, Max Payne 3, and now, Red Dead Redemption 2.
According to an email from the developer's customer support team posted on popular gaming forum ResetEra, Red Dead Redemption 2 requires a one-time connection to the Internet for would be players to create or log into a Rockstar Games Social Club account. Rockstar Games' upcoming open-world adventure Red Dead Redemption 2 may force users to sign up for a Rockstar Games Social Club account before playing the game.