History

DEMO 1
The first ever demo had no voice acting and only custom night mode.purple guy also had the sprite of the fnaf 2 foxy GO GO GO minigame.The ai was purple instead of white like it is today and there were only 22 characters instead of the diverse 90 characters we have today.The only remarkable thing to say about this demo is the change office button that was scrapped later down the line.

DEMO 2
With 22 more characters for custom night making the grand total 44 characters in demo 2.there were no other game modes introduced but had a new menu.Demo 1 just had a blank background and called it a menu.Finally demo 2 made the menu similar to what it is today

DEMO 3
Demo 3 adds 36 more characters at 3.1 but by 3.3.2 there are 10 more characters.The new mode added was story mode.The 2 chapters that are out were the first chapters.Alot more happened such as the change office button being removed,new menu etc