Ghost of Tsushima is an epic, open-world samurai adventure set during the Mongol invasion of Japan in 1274. Release date: TBC . This item is FREE delivery. Suitable for the PS4. In 1274, the fearsome Mongol Empire invades the Japanese island of Tsushima and slaughters its legendary samurai defenders. Jin Sakai is one of the last survivors of a noble samurai clan. To combat his overwhelming foes, he must pioneer deadly new fighting techniques - the way of The Ghost - and wage an unconventional war for the people of Japan.