Subnautica Wiki


513pages on
this wiki
Add New Page
Comments63 Share
This article is about the Thermoblade. You may be looking for the Survival Knife or the Hardened Blade.

The Thermoblade is an in-development tool and an upgrade to the regular Survival Knife. It is crafted by using the Modification Station.

In general, it can be used for harvesting or defense. However, its primary function is that it cooks any edible fish in one swipe.

The Thermoblade has a limited durability of about 34 strikes against an object. It does the most damage of all the knives, but its low durability makes it unsuitable for fighting.

If a Bleeder latches onto the player's arm, the player can use the Thermoblade to stab the Bleeder.


Survival KnifeBatteryArrow-right (1)Modification StationArrow-right (1)Thermoblade

Gallery Edit

Trivia Edit

  • Markings on the Thermoblade indicate that it was made by "Alterra Arms Incorporated". Alterra is a corporation also known from the game Natural Selection 2, which was also developed by Unknown Worlds Entertainment.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.