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"Warning: the cyclops is designed to be operated by a three-person crew. Only experienced helms-people should attempt to pilot this vehicle solo."
―PDA, Dialogue

The Cyclops is a 54.2 meter (178 foot) long, 14.2 meter tall (47 foot), and 12.6 meter wide (41 foot), large player-controlled submarine with a top speed of 14.4 Knots or 7.4 m/s (27 km/h).

It is constructed via the Mobile Vehicle Bay and can act as a mobile Seabase.


In order to gather a Cyclops Blueprint, 3 different types of fragments need to be scanned:

  1. Cyclops Hull fragments (Sea Treader's Path, Floating Island  and Mushroom Forest)
  2. Cyclops Engine fragments (Aurora, Wrecks, Mountain Island, and Jelly Shroom Caves)
  3. Cyclops Bridge fragments (Sea Treader's Path, Mushroom Forest and near the Aurora)

All need to be scanned a total of 3 times each. Once the player has completed this task, it adds the respective parts of the whole Cyclops Blueprint.

Once scanned, each part has a progress tracker in the Blueprints tab of the PDA. When a part is fully scanned it will be listed as a blueprint; however, these blueprints can't be used on their own. Once complete, each part contributes to the cyclops blueprint as fragments contribute to other blueprints.


A HUD on the bridge window displays health, noise, speed settings and energy.

On the left HUD are four speed settings. In order, they are: "Silent Running", "Ahead Slow", "Ahead Standard" and "Ahead Flank". Each setting changes speed as well as noise. 

The Cyclops can dock the Seamoth and the Prawn Suit, but only one at a time, similar to the Moonpool. If the Cyclops Docking Bay Repair Module upgrade is installed, any docked vehicle will slowly be repaired.

A computer terminal on the bridge allows the user to give their Cyclops a custom name. This custom name is displayed along the starboard side of the vessel and has a 14 character limit. This terminal also allows the user to adjust the colors of the exterior and the external custom name; HEX codes will also be displayed by this terminal.

A hologram projector next to where the player stands to pilot the submarine displays a small image of the Cyclops and nearby hostile creatures as red triangles.

A switch on board allows the lights on the Cyclops to be turned on or off at will. This affects how stealthy the Cyclops is; it is less likely to be noticed by aggressive creatures if lights are off. Two switches are available, one for the interior and one for the exterior lights.

On the port side of the bridge, a hologram displaying a large image of the Cyclops can be seen. The health bar is displayed above the projected Cyclops image and, if present, leaks and fires will be displayed on this image, showing the player where they are located.

If the Cyclops is close to terrain, a HUD will appear on the bridge window, showing where the terrain is.

The Cyclops has three on-board cameras that can be operated using a button found on the HUD on the right side of the bridge window. The camera locations are on the keel, the conning tower, and the screw, which are respectively the front of the bottom, the very top, and the back of the Cyclops.

The Cyclops also has an on-board A.I. that will warn the player of danger, and a beacon that allows the player to find it from a distance. The keel section of the Cyclops has five built-in Storage Lockers, each containing 12 units of space.

The Cyclops comes equipped with two wall-mounted fire extinguishers, one port side engineering, and one port side of the bridge, both which can be removed for use, and later replaced by the player.

On the starboard side of the engine room, the Cyclops Upgrade Fabricator can be found. It functions similarly to the upgrade fabricator in the Scanner Room, allowing the player to create the upgrade modules for the Cyclops if they have unlocked the blueprints for them.

As it says in the data bank entry, it is named for the fact that it can be piloted by one person. The sub may also be named based on its single, large window, resembling an eye.

When the Cyclops explodes, it will destroy a Seamoth or Prawn Suit, should one be docked inside. However, the Cyclops will feature a warning prior to the explosion, providing time to exit the submarine with the smaller vehicle. Any appliances built onboard will be able to be deconstructed for their respective materials after the Cyclops explodes. A small amount of Metal Salvage will also be available to obtain. When the Cyclops explodes, when inside you will see a fire quickly burst through from the back to the front.

An upgrade is currently in development which will allow the player to load chaff into the console in front of the engine room and deploy them out of the Conning Tower via a button on the Cyclops HUD. These chaff or Decoys will distract creatures and allow the Cyclops to escape.

How to UseEdit

  1. Press LMB to initiate the Cyclops' driving controls at the steering column.
  2. Press LMB when in pilot mode to activate sound horn.
  3. Move the Cyclops forward and backwards with W and S.
  4. Steering is A and D to turn left and right.
  5. To dive (descend) use C and SPACE to rise/surface (ascend).
  6. Use the mouse to control the visual field.
  7. Press E to dismount from the driving position.
  8. Click the camera symbol to the left of the control panel to access the cameras.
  9. While in Camera mode scroll the mouse wheel to switch between cameras.
  10. Click the Decoy symbol to launch a short lived decoy to help you escape
  11. Click the sonar icon to do a sonar scan (if Cyclops Sonar Module upgrade is installed)
  12. Click the shield icon to briefly activate the force field (if Cyclops Shield Generator upgrade is installed)
  13. Press Esc to exit camera mode and return to driving mode.

Fabrication and AppliancesEdit

The Cyclops can be further customized using Placeable Items constructed with the Habitat Builder. A Fabricator, Modification Station, Battery Charger or Power Cell Charger built in the Cyclops will use the ship's power, turning the cyclops into a mobile base, but allow for the construction of items such as Cyclops-specific upgrades that cannot be created elsewhere, or alternatively allow for the recharging of batteries and power cells while in transit away from Seabases or the Lifepod. Lockers, Giveaway Items, and even an Aquarium or Interior Growbeds can also be built inside the Cyclops. The latter can be very useful for growing food on Survival mode which, when combined with a Stillsuit, can permit long-term sustenance when away from a Seabase for extended periods of time.

Influence of Depth and DamageEdit

Below 500 meters depth, the Player will be alerted by the on-board A.I stating, "PASSING SAFE DEPTH." After this warning, there's an increasing chance you will rupture the exterior hull, costing health. However, the hull breaches can be repaired by the Repair Tool. Location of the breach will appear on the port side hologram display. If damage continues fires will start springing up in random locations. These will also appear on the port side hologram display. Fires left unchecked will spread, causing more damage, and releasing toxic smoke that will cause a small amount of recurring damage to the player, as well as making it increasingly more difficult to see. Small fires might be automatically extinguished by the Cyclops if there's not too much damage, otherwise the player must take a fire extinguisher and put it out. Once all fires are out, the computer will announce it, and begin evacuating the smoke from the cabin.

If the user is in possession of the Cyclops Hull Module MK1 Blueprint, it is possible to craft the Cyclops Hull Module MK1. This increases the crush depth by 400m. The Cyclops Hull Module MK2 will increase the crush depth by 1000m. This means the Cyclops is capable of going as low as 1500m below the water's surface in total, as opposed to the Seamoth's 900m with a Pressure Compensator MK3 upgrade.


The Cyclops uses up Energy as it is used. At 100% power, the Cyclops can travel approx. 4450 meters (44.5m/1%).[update required for Ion Power] The engine room at the rear contains Power Cells. If there is a Fabricator, Modification Station, or Battery Charger/Power Cell Charger (Crafted chargers from habitat builder will drain power cells) on the Cyclops, then they will drain the power cells when in use. Docking the Seamoth personal submersible or Prawn Suit will also transfer energy to recharge it from the power cells.

A Cyclops Power Efficiency Module can be obtained from the Aurora's power generator room that improves the Cyclops' energy efficiency by 400%, increasing the approx. travel distance to 8900 meters (89m/1%). This will also lead to half energy consumption for any items being fabricated. (Fabricating is fixed to 5 energy now, regardless of Cyclops Power Efficiency Modules.)

If the Cyclops is depleted of power, the on-board lights will shut off, appliances cannot be used, and oxygen is not produced.

The Cyclops will not use energy when in Creative Mode.

As of the Castles & Coffee Update (January 2017) the Cyclops has a maximum power capacity of 6000 units using Ion Power Cells, each power cell adding 1000. Regular Power Cells provide a maximum of 1200 units with each cell adding 200. Original values for Power Cells were 100 each for a total of 600 units, which was likely changed because of Cyclops energy usage complaints.

Currently, it is possible to build a Power Cell Charger inside the Cyclops. Charging a power cell currently creates a net gain in energy, despite drawing from the Cyclops' energy reserves.


When piloting the Cyclops, there is a camera button, clicking the camera button to the top right of the control panel will allow the player to control the Cyclops cameras. There are three cameras in total, one under the keel, one on the back and one on the conning tower (Very top). These cameras are best used for navigating around obstacles, or for checking for predators before disembarking.

Collision HUDEdit

When the Cyclops is driven near a creature or terrain, the collision HUD appears and shows where the creature/terrain is. This can be useful for small areas.


Two buttons, located to the right of the Cyclops Color and Name post, can be clicked to toggle the interior and exterior lights. Interior lights will be automatically turned off if energy runs out. Turning the lights off doesn't affect the energy currently.

Oxygen Edit

The Cyclops will produce Oxygen naturally, like the Seabases. However, if the Cyclops runs out of Energy, the oxygen will slowly run out.


Plasteel Ingot×5Enameled Glass×5LubricantLubricantAdvanced Wiring KitArrow-right (1)Mobile Vehicle BayArrow-right (1)Cyclops

Future PlansEdit

  • The Cyclops may have the ability to be docked to seabases.[1]
  • The Cyclops may have alternate depth upgrades in the future.
  • The Cyclops will have more features at a later date.[2]

Data Bank EntryEdit

The cyclops is the most popular and reliable deep-sea submersible in the galaxy. By comparison to the competition it can be crewed by just one pilot, hence the name. It features:

  • Manual piloting controls and forward observation deck for precision maneuvering
  • Dry dock for transportation and maintenance of scouting vehicles
  • Extensive storage solutions in the stern section
  • Internal and external video feeds
  • Onboard AI for collision and damage detection
  • Multiple customization options


  • Top Speed: 8m/s
  • Acceleration: 3m/s/s
  • Distance per power cell: Variable
  • Crush depth: 500m below sea level
  • Dimensions: 54m x 14m x 12m
  • Persons: 6

NB The cyclops does NOT feature:

  • Habitation quarters: It is recommended the captain draw up a rota to decide who gets to sleep in the corridor each night
  • Emergency ballast: In the event of flooding and full power failure this vehicle WILL sink
  • Extensive customization options




For a more complete gallery, visit Cyclops/Gallery.


  • The console left of the steering wheel is marked with "ALTERRA", similar to the Survival Knife displaying the manufacturer title "Alterra Arms". Alterra is a corporation also known from the game Natural Selection 2, which was also developed by Unknown Worlds Entertainment.
  • At one point it was possible to recharge the Cyclops by mounting Solar Panels other generators to the top of the Cyclops. This feature has since been removed. The only way to recharge the Cyclops' power cells is via the Power Cell Charger, which first requires said Power Cells to be removed from the engineering room.
  • The drive setting "Ahead standard" was previously the only speed the cyclops could move at.
  • Sometimes when entering the Cyclops the AI will say

"You are the best captain on this planet." Which may be a reference to you being the only known human on the planet.


  1. Dated August 25th, 2016.

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