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The Alien Vents are a huge network of pipes, created by the Precursor Race that stretch out in the crust of Planet 4546B. The pipes have multiple access points throughout the world, and all converge at the Primary Containment Facility. The purpose of these pipes is to allow oxygen-rich water from multiple biomes to be pumped into the Sea Emperor Leviathan's Aquarium, creating an ideal environment for it. [1] However, at an unspecified time, the captive Sea Emperor Leviathan managed to train Peepers to use the pipe system, through which the Peepers deposit flora seeds into the Aquarium and collect small amounts of Enzyme 42, they then go back to the surface and distribute the enzyme. This process is the sole reason that some life has managed to survive on the planet. Entrances for the Alien Vents are located in the Dunes, Grand Reef, Underwater Islands, Mushroom ForestMountains, and the Sparse Reef.

Entrance Points

Alien Pipe Entrance Points are vents located in six biomes around the world. These vents allow Peepers to distribute Enzyme 42 to other creatures. The vents have two access points, both of which only allow Peepers one way travel into or out of the Alien Vents. The Peepers can occasionally be seen swimming in and out of the points.

Image Location Coordinates
Dunes -1160 -245 -140
GR Alien Pipe Entrance
Grand Reef -940 -335 -1220
Mountains 750 -285 1020
Northeastern Mushroom Forest 650 -170 480
Sparse Reef -725 -300 -725
Underwater Islands -465 -70 870

Data Bank Entries

Alien Vent

These vents connect to an ancient piping network that extends beyond maximum scannable depth. The pumping system is still functional, indicating a power source exists somewhere else on the planet.

  • The inflow vent is drawing water from the surrounding area, and pumping it to an unknown location below the surface
  • Warm, de-oxygenated water is being expelled into the atmosphere
  • Most creatures are avoiding the vents
  • Peepers can be observed entering and exiting the pipe network seemingly unharmed

Assessment: Further research required


This terminal is controlling the flow of water to and from this facility via the attached pipe network.

Water composition indicates water is being drawn from different biomes between here and the surface of the planet. The water temperature is considerably lower than the volcanic environment outside the facility, while micro-organism and nutrient counts are substantially higher.

Oxygen-deprived water is being flooded from the system and recycled back to the surface.


These inflow pipes are being used by peepers to access the otherwise isolated facility.

- Peeper behavior elsewhere on the planet suggests they are not being sucked in by accident, but rather have evolved to actively seek out the correct access points
- The specimens scanned have all consumed high quantities of seeds from the surface world
- Specimens show differing levels of bacterial symptoms


These outflow pipes are transporting peepers out of the facility, back towards the surface.

- All specimens scanned are carrying the enzyme which inhibits bacterial growth and helps the body repair the symptoms of the infection
- Stomach cavities are all empty

Pipe Access Point

This appears to be one of the endpoints of the alien piping system transporting fresh water from the surface into the containment facility.

- Peepers are using the pipe network to travel to and from the surface
- behavior must be explained by evolutionary adaptation to extreme circumstances