A loop exists in a dimension completely separate of the subnet. It is said to "exist" in a timeless, spaceless form.


Loops can refer to any instances of "anti-locations" that repeat rooms forever or randomly generate rooms due to time anomalies or torn spacetime.

The most famous example of a loop is the Loop found in Submachine 3: The Loop. It is one of the most complex loop systems discovered.

Other loop "locations" have been discovered or crafted in the subnet and are showcased in Submachine 10: The Exit and Submachine Universe.

List of loopsEdit


“If subnet is universe, then the loops are black holes.”
— Unknown[1]

“I remember those damn looping rooms.”
— An un-named explorer[2]


  1. Notes#Black holes
  2. A note in Sub4

See alsoEdit

Loop • IOO-Royal storage facilitiesStorage unit 32/1Storage unit 33/1‎Storage unit 33/2Storage unit 33/3Storage unit 33/4Level X • 006-Stone loop • 245-Cake loop • 555-Violet loop • 690-Looping traps • 815-Lost plane • 888-Cube loop • 917-Looping sphere • 923-Solitary confinement

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