The length of Onimusha: Way of the Sword has been clarified: focusing solely on the main story takes about 20 hours, while the average completion time for typical players is around 25 hours. To complete all collections and earn the Platinum trophy, the total time investment may exceed 60 hours.
The game primarily follows a linear structure, while also offering optional missions such as "Kyoto Mysteries" and "Chance Encounters." Players can also expand their exploration around the Tokyo base, accessing more optional locations and unlocking corresponding objectives.
Komainu statues are hidden in each area, providing additional objectives for players to revisit completed levels. Depending on playstyle, clearing all side quests in a single playthrough takes approximately 33 hours, but this still won't unlock all available content and items.
Some content must be completed on "Carnage" difficulty, which only unlocks after beating the game once. Therefore, achieving Platinum status requires at least two playthroughs, with an estimated total playtime exceeding 60 hours.
The main story of Onimusha: Way of the Sword consists of 22 chapters, categorized under "Way of the Sword" within the game. The journey features Kyoto landmarks such as Kiyomizu-dera and Kennin-ji, as well as scenes set on bridges and in mountainous areas.
The "Battle of Rendai Field" is a point of no return in this game. Once you enter this chapter, the story will progress continuously to the ending. Players who wish to complete side quests and explore areas should handle any remaining objectives before proceeding.