|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. The Thermoblade does the most damage of all the knives. However, its primary function is that it cooks any edible fish in one swipe.
If a Bleeder latches onto the player's arm, the player can use the Thermoblade to hit the Bleeder.
- Markings on the Thermoblade indicate that it was made by "Alterra Arms Incorporated".
- The Thermoblade once had durability, but it was removed due to durability being deemed useless.
- When the Thermoblade did have durability, it had the lowest durability out of all the knives.