“Grand Theft Auto VI” won’t come out until next week, but it has already surpassed $1 billion in sales, according to market research firm Sensor Tower. The firm’s sales tracker, updated Wednesday, estimates that more than 10 million copies of the game are reserved on the PlayStation 5 and Xbox platforms, putting revenue above $1 billion net of returns. The PlayStation 5 accounts for about 75 percent of purchases, according to Sensor Tower estimates.
