Been working on reworking on a Backrooms level.. Came up with the idea that it will have 9 different variatons of Levels. 
Also level will include Entity, but it will not attack you, but will not be letting you to pass further. Entity will wander acroos the whole map, except that he  won't be able to reach the starting players point. Maybe I will came up with something more with an entity. Also Backrooms level will include clues, that will be needed to be found and find the exit door. Phone will stay as usual, as the timer will be needed to be stopped after you find all clues to save time tracking of the level. Basically time tracking is set how long it took you to find all clues/collect all items in the level and etc. 

Here is a slight video of reworked Backrooms level. New lightings, new variation of Level, currently only one.  Entity patrol through the map.