Level -37 is the -38th level of the backrooms and is a darker counterpart to the poolrooms (Level 37).

| Level -37 |
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| Render Of The Level |
Description:
Level -37 is made up of small, cold water filled rooms of a senseless layout. The level is noticeably different from other levels as it is a counterpart to another level, Level 37. It is much like Level 37 in layout terms, but unlike Level 37 the layout is non-linear. Rooms change when out of vision, and walking straight leads back to the starting point.
The walls are of a dark navy-blue, and the water is chillingly cold. The level is very dark and lacks any natural light, making traversing the level acutely dangerous.
Entities aren’t common due to the coldness of the water, yet this does no stop smilers and the corruption, as they still roam the level. It is also notable that "the corruption" harbors strong hate towards the level due to the water making it more difficult for its hunting. Sudden drops are more common on Level -37, and are often at lethal heights. The level harbors nothing of interest, or worth making it nothing more than a hazard to wanderers. Despite this lack of purpose people still find themselves in the level quite often.
Rarely rooms in the level will be extremely expansive, with towering ceilings and wide walls. Along with that, these rooms often have balconies, with staircase leading up to their tops. The B.N.S. have tried to map out these rooms, but due to the lack of light and the systems low power floodlights, the room layouts can’t be finalized. Aside from B.N.S. research, systems and groups simple don’t assemble in Level 37. Though a group is thought to exist, deep in the level.
Entrances And Exits:
Entrances
Level -37 can only be found through Level 37. Down the deep staircases, the tile will slowly darken, and the water get colder. This is the entrance to Level -37. Alternatively no-clipping in cold and dark water has a 1/50 chance of leading one here.
Exits
Exits are rare to Level -37, but exist. Drops are high and deadly, but not ALWAYS lethal. There is a chance that unexpected drops lead back to Level 37, this is only thought to be the case. Other info on exits do not exist as of now, but the B.N.S. may be close to finding a way.
