Total War Rome 2 was the best-selling game in Sega's financial year ended March 31 2014, the Japanese publisher said on Friday.
Sales of the title came in at 1,130,000 million units, ahead of the 790,000 sales racked up by fellow PC release Football Manager 2014.
Sega's consumer business segment, which includes games and toys, posted annual sales of 101 billion yen (£586m/$992m), up 18.6 per cent year-over-year, while operating income swung from a loss of 732 million yen (£4.3m/$7.2m) in the previous fiscal year to a profit of 2.1 billion yen (£12.2m/$20.6m).
The company's packaged game sales declined by two million units year-over-year to 8.7 million, while the performance of digital games for mobile devices and PC "remained favourable".
Looking ahead, the company said that "the packaged game software field in the consumer business will continue to undergo rationalization, in an effort to establish a structure that can consistently generate profit. We will also push forth with the digital conversion of existing package IPs."
Sega as a whole posted annual revenues of 378 billion yen (£2.2b/$3.7b), up 17.6 per cent year-over-year, and net profit of 30.7 billion yen (£178m/$302m), down 8.2 per cent.