You should add each level in numerical order so people would know what to expect. These levels should be 0, 1, 2, 3, 4, 5 and 6.
Edit the Backrooms game with Unity! · By
The new Backrooms game is based on the Backrooms Wikidot website. It is mentioned at the end of each level’s page that their exits lead to different levels. (Mostly NOT in order)