Which version of blood-stained bell tower is suitable for offline?

Undercurrent version. In the undercurrent version of the blood-stained bell tower, occupations such as night watchman and night watchman are added, which increases the suitable crowd from 15 to 30 people, which can be suitable for more people to play offline and speeds up the pace. Starting from the first 30 minutes, this version can be completed in 15 minutes to 20 minutes.