Furies replace Insanity Elementals from Shadows of Evil and, much like Insanity Elementals, spawn into the map by falling from the sky. They spawn along with the Parasites on their second unique round. Furies will also attack the player while overriding the first, the second and the fourth Corruption Engines, in a similar fashion to the Crusader Zombies from Origins. In addition, Furies have the ability to teleport to the player and attack him/her.
- In the trailer, the Furies are shown to be much larger.
- Because of the intensity of their animations and how many can spawn, the game is extremely prone to crash when they spawn, especially during the later rounds.
- When targeting a Lil Arnie, the Apothicon Furies will still teleport towards and hit a player in range, instead of teleporting to the Lil Arnie, provided there is line of sight between the Fury and the player.