Subnautica Wiki
This article is about Laser Cutters in Subnautica. Click here for information on this subject in Below Zero.

The Laser Cutter is a tool crafted at the Fabricator. Fragments of the Laser Cutter must be scanned in order for its blueprint to be unlocked.

Its only function is opening sealed doors in Wrecks and the Aurora. It has an Energy level which can be replenished with a Battery.

When equipped, it emits light in a five-meter radius from the player.

Power Usage

Cutting open one sealed door will drain 17% of the charge of a normal battery. This means it can cut through five doors and nearly make it through a sixth before needing to replace the battery.


Diamond.pngDiamond.pngBattery.pngTitanium.pngCave Sulfur.pngArrow-right (1).pngFabricator.pngArrow-right (1).pngLaser Cutter.png

Data Bank Entry


The ultra high frequency laser cutter is tuned specifically to cut through titanium and plasteel based materials at a thickness of up to 10cm. This makes it an essential tool for construction, salvage and rescue operations, but ineffective on natural obstacles.

'The Alterra Laser Cutter: Who called the locksmith?'



  • In previous versions of the game, the Laser Cutter was crafted at the Modification Station with a Repair Tool and a Diamond.
  • Previously, for every 2% of usage on an object, the Laser Cutter's battery percentage went down by 1%. Thus the player could get two objects opened before needing to replace the battery.
  • The PDA data bank entry can only be obtained by dropping and scanning a built Laser Cutter.