In Episode 3, the mall was an actual mall called The Valley View Centre Mall which was abandoned in January 2022 and demolished in May 2023. Kane revealed he made over 90% of the mall with CGI.
In Episode 2, the steps to nowhere are real, however only the first couple. The rest is entirely made with CGI.
Also in Episode 3, the Rolling Giant was an actual event which took place in the mall right before it closed. The giant itself was called "Julius the Giant". The signs for the Giant saying "We're Back" was also a sign that was used to promote the event inside the mall.
In Episode 3, in a call he did with another YouTuber called Wendigoon, Kane said there was going to be a scene using a drone, but he decided to cut it since it didn't fit.