Empire: Total War is a turn-based strategy and real-time tactics video game developed by Creative Assembly and published by Sega. The fifth installment in the Total War series, the game was released in 2009. The game, which focuses on the early modern period of the 18th century, was announced at the Leipzig Games Convention in August 2007. The Mac OS X version of the game was released by Feral Interactive on 10 June 2014. The Linux version was released, also by Feral Interactive, on 8 December 2014.