Total War Saga: Thrones of Britannia is a turn-based strategy and real-time tactics video game developed by Creative Assembly and published by Sega released on 3 May 2018 for Windows. The game was brought to macOS and Linux by Feral Interactive on 24 May 2018 and 7 June 2018 respectively. It is the twelfth game in the Total War series of video games. The game is set in the British Isles 878 AD. There are ten playable factions including Wessex Mercia Circenn Mide Gwined and the Danelaw. Like its predecessors the game is both a turn-based strategy and real-time tactics game. The game takes place in the British Isles in 878 AD after Alfred the Great defeated the Danes at the Battle of Edington and the signing of the Treaty of Wedmore. Players assume control of various factions including Vikings British clans and Anglo-Saxons and compete against each other to be the new king. In the game players command different military units and move them around the map. They can also fund research for new projects recruit and manage new characters for their cause and engage in diplomacy with other factions.