Nemacysts are flying creatures that explode on impact with an enemy. They are often used in air combat by the Locust. While the creatures do massive damage if their attack is successful, they are extremely weak and can be destroyed prematurely with just a few bullets. Nemacysts are spat out by Seeders as a form of defense. They can also be used to stop the signal of the Hammer of Dawn satellite to your handheld Hammer of Dawn, making it so you can not use it, and overall, useless.