Game Musou Orochi Z is an exclusive project from Koei brings together two best tactical games Sangoku Musou and Sengoku Musou with new missions and an original script. Without warning Snake King Orochi has begun an invasion. Using the immense power, allowing to break time and space, Orochi kidnapped the strongest and most courageous warriors of Ancient China and Feudal Japan to test their skills in battle with the best soldiers. None of the armies could not resist authority Orochi. On the ground remains less the heroes, who continued to resist the Snake King. 96 playable characters instead of 79 in the original, all the old optional new costumes, new campaigns, new game modes, new items. In general, all normal publishers it would be just an addon, but Koei served it as the third part of the WO.