While staying true to his original appearance, Withered Chester is more broken down than his original counterpart. He lacks an arm and leg segment, revealing endoskeleton frame underneath. Part of his face is completely removed, though his jaw is still intact. The casing for his eyes and left ear has been removed. It should be noted that Withered Chester appears dirty. This applies to the other animatronics in the game.
Withered Chester becomes active on Night 2. He can appear in any camera like the other animatronics. His mechanic is different from most other animatronics: instead of trying to get to the player from the Central Hall, he will try to get to the player through the vents. By clicking the phone in the room Chester is in, the player can scare him away, and then he runs out of sight of the camera. Chester is never seen in the Central Hall, except during a jumpscare. He bangs on the vent cover while trying to get in it, so the player can listen for when they need to react to him. If left unattended, he will enter the vents and loudly climb towards the player; at this point, a jumpscare is unavoidable unless the night ends first.
- Chester appeared in the final teaser. Brightening the teaser showed text saying "Why didn't they like me?".
- The minigames imply Chester was scrapped earlier then Candy and Cindy, perhaps after being damaged by RAT. This explains why he keeps the same joints and suit parts.
- Chester banging on the vent cover and running away if scared off by the phone is one of the few times an animatronic is seen moving on camera or any time not during a jumpscare.
- Chester kind of resembles Withered Bonnie from Five Nights At Freddy's 2 except Chester still has his upper jaw unlike Withered Bonnie from Five Nights at Freddy's 2.