title: Total War (series)
context: Total War is a series of strategy games developed by The Creative Assembly for personal computers. They combine turn-based strategy and resource management with real-time tactical control of battles. The first of the series, Shogun: Total War was released in June 2000. The most recent major game released was Total War Saga: Thrones of Britannia on 3 May 2018. The series has sold over 20 million copies.[1]
question: How many units has Total War sold?
answers: 20 million