Many modern games, especially those in the role-playing genre, include a New Game + mode, which essentially allows players to restart the game with most or all of their progress still intact once they finish their initial playthrough. Fortunately, Starfield players will receive the opportunity to start a New Game + once they reach the end of their initial playthrough, which is especially helpful, considering how massive the game is.
Source：https://www.cbr.com/starfield-new-game-plus-guide/
