Knives are useful for cutting tallgrass and cattails. It's very important to craft a knife as soon as possible to cut tallgrass in order to build a firepit and cattails to make early game storage items. Knives are mostly useless as weapons, seeing as the basic flint knife has the same damage, but less reach, as a simple stick.
There are several variants that you can craft. Each variant has a different durability and attack power. A stone knife head can be crafted via knapping and the metal variants have to be crafted using smithing.
|Vanilla Game Content|
|Tools & Weapons|