|This article is about the Thermoblade. You may be looking for the Survival Knife or the Hardened Blade.|
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.
- 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.