And there are many ways of "immersion", such as 360 panorama, holographic projection, light and shadow immersion and so on.
Immersion of "script killing":
The core of script killing is human role-playing, which is usually guided by a DM. Usually one player plays the murderer without the knowledge of other players. After several rounds of evidence search, discussion and reasoning, the player finally chose the murderer and cracked the murderer's motives and modus operandi.
Finally, DM (the host) announces the truth, which usually lasts 2-6 hours. With the increase of demand, it sometimes lasts for 9 hours or even two days, and the number of participants varies from 5- 10.