EDIT: Added and changed some things: Pirate Cove and the Play Area is now a bit larger and now includes "Foxy's Treasure Cave", which is a small, near pitch dark maze. The corridors of the maze lead to a small room full of fake treasure chests. Added an Emergency Exit in Pirate Cove and added bathrooms in the Employee Break Room. Changed the hallway to the main bathrooms in Freddy's Dining Hall to match the one seen in-game. Now at least the whole building is one big rectangle, also.
I've succumb to the power of the evil animatronic bear... Don't ask me how... Anyway, this is what I did out of boredom: drew a floor plan for a haunted pizza restaurant...
I went for a more Chuck E. Cheese style when it came to this version of Freddy's, so it's MUCH larger than it is in game canon. For example: Foxy's Pirate Cove is now a giant two story Play Area and Arcade. There is also a glass counter where kids can receive prizes (mostly Freddy Fazbear products and plushies) for their tickets they receive from the arcade games. Foxy's show is more like a dinner theater play of "The Pirates of Penzance", which gives an overall lighthearted atmosphere. (Although years of wear and tear have taken their toll on poor Cap'n Foxy and his crew. Also, I go by many other people's theory that the Bite of '87 was actually Foxy's doing, though an accident and not done purposefully. It ruined Pirate Cove's reputation though, none the less, so kids and parents spend more time at the Arcade and Play Area.)
Freddy's Dining Hall is the main hub and is where most guests have to go to gain access to other areas of the restaurant. This is where Freddy and Friends have their show and entertain the guests. (I remember going to Chuck E. Cheese with my parents as a kid and all three of us HATED how cramped these eating areas were, especially when you have screaming kids tearing by nearly knocking hot food out of servers hands. I tried to make the area, although incredibly large, seem very cramped with tables and chairs to reflect these memories.)
A few areas had to be moved around for aesthetic reasons, such as Chica's Kitchen and the bathrooms. I added a few extra areas, such as a Waiting Area, the "Boss's" Office, and the Employee Break Room. I wanted to give the restaurant an air of obvious Capitalist ideal, giving Boss a massive and luxurious office with huge plush chairs and the employees a tiny and cramped Locker and Break Room. To access the Break Room, one would have to make their way through the creepy Animatronics and Set Studio, which is where the sets and myriad of [ghastly] animatronics are housed and/or built, repaired, and mended as need be. Then of course there's the Security Office at the front of the restaurant where the story of Five Nights At Freddy's takes place. Although there are two desks in this version: one is for the day shift and one is for the night (Mike, your character's) shift. (Anyone familiar with the game should know which desk is Mike's/"their's".)
So yeah, hopefully the fans of the game won't tear me limb from limb [and stuff me in a Freddy Fazbear suit].
Five Nights At Freddy's and all associated with it are copyright of Scott Cawthon