Despite Grand Theft Auto Online being separate to Grand Theft Auto V the developer has no plans to offer it as a standalone title.
Grand Theft Auto Online was revealed to the world yesterday, when it was confirmed that it would ship with all retail copies of Grand Theft Auto V on September 17, but would not go live until October 1.
“We don’t have any plans to sell GTA Online separately,” a Rockstar rep told Polygon. “It will come free with every copy of GTA V and doesn’t require a code, online pass, or anything like that.”
So the only way to get your hands on GTA Online is to purchase Grand Theft Auto V.