This article is about Propulsion Cannon in Subnautica. For the related article on the Below Zero Wiki, see Propulsion Cannon.
This article is about the Propulsion Cannon. You may be looking for the Repulsion Cannon or the Prawn Suit Upgrade.

The Propulsion Cannon is a tool crafted with the Fabricator. It can be modified to the Repulsion Cannon with the Modification Station. The Propulsion Cannon takes up four slots in the player's Inventory. In Creative, the player starts with a Propulsion Cannon in their inventory.


The main function of the Propulsion Cannon is to attract and launch objects with its beam, including small Fauna or Flora and Harvesting Nodes within a range of 19 meters or less. It is also used to move away debris blocking the player's path in the Aurora and in wrecks.

Objects can be suspended via the Propulsion Cannon by aiming at the object and pressing RMB (Xbox One:

XBOX Right Trigger

, PlayStation 4:PS4 R2). The player can also load an item from their inventory into the Propulsion Cannon by pressing F (Xbox One:


, PlayStation 4:PS4 Dpad Up). Once an object is loaded, the player can launch the object by pressing RMB (Xbox One:

XBOX Right Bumper

, PlayStation 4:PS4 R2) again. Pressing F (Xbox One:


, PlayStation 4:PS4 Dpad Up) with an item loaded releases the object without launching it. Attracted objects can be picked up by the player with LMB (Xbox One:


, PlayStation 4:Combops4x). This makes the Propulsion Cannon useful to catch fish and pick up hard-to-reach items.

If a Bleeder latches onto the player's arm, the player can use the Propulsion Cannon to grab the Bleeder. It can then be blasted off.


The Propulsion Cannon uses energy from a Battery which can be replaced with R (Xbox One:


, PlayStation 4:Combops4sq). While picking up objects does not use any energy, holding objects with the Propulsion Cannon uses 1 unit of energy every 1.43 seconds (41.96 energy per minute, 143 seconds for a full Battery or 715 seconds for a full Ion Battery). Launching objects uses 4 units of energy.

The Propulsion Cannon can be recharged with the Swim Charge Fins.

Spoiler alert: The following section contains story related material.

An Ion Battery can be used to power the Propulsion Cannon


Wiring KitBatteryTitaniumArrow-right (1)FabricatorArrow-right (1)Propulsion Cannon

Uses in Crafting

Propulsion CannonComputer ChipMagnetiteMagnetiteArrow-right (1)Modification StationArrow-right (1)Repulsion Cannon

Data Bank Entry


The propulsion cannon allows technicians to manipulate gravitational forces at ranges of up to 20m. It is commonly used in construction and mining to move materials.

Operating Instructions:
- Pull the trigger once to lock onto and attract a single targeted object weighing less than 25kg
- The object can now safely be retrieved from the gravitational beam
- Alternatively, pull the trigger a second time to propel the object at speed away from the device
- Not recommended for use on organic subjects

'The Prop Cannon: Some species are telekinetic. For everyone else, there's Alterra.'



  • The Propulsion Cannon has many similarities to the gravity gun from the Half-Life series. The developers have admitted to using it as a design inspiration.[1]
  • The largest object that can be grabbed is the Seamoth, although it is difficult to move.
  • The Propulsion Cannon's first model, used in early access was reused for the Stasis Rifle.

Spoiler alert: The following section contains story related material.

  • The Propulsion Cannon used to be one of the only ways the player can grab Enzyme 42, but has been removed.


This section contains bugs related to Propulsion Cannon. Make sure to only post reproducible bugs, and use appropriate system template ( XboxLogo, PlaystationLogo, WindowsLogo / AppleLogo ) depending on which platform(s) the bug has been encountered on.

  • WindowsLogo When the Propulsion Cannon is used on an object directly beneath the player's feet, the object will be pulled upwards without colliding with the player, but the player will collide with the object. Thus, "flying" is possible.


  1. Dated January 7, 2015.
Community content is available under CC-BY-SA unless otherwise noted.