The gameplay and elements are different.
1. Gameplay. In Spirit Detection Notes, you can play the role of many bad guys and join the enemy camp to win the game. However, in Spirit Realm Qitan, you can only be a good guy, which is stipulated by the rules of the game.
2. Elements. There are many Chinese elements in "Notes on Spiritual Detection". The characters, characters and scenes of ancient styles can feel the charm of culture, while the backgrounds of "Strange Stories of Spiritual Realms" are all based on foreign elements and styles.