FNAF: Ultimate Custom Night Online is a scary Fnaf unblocked game. It is about a crazy adventure where you are given an interesting extra side mission from Five Nights at Freddy’s: Sister Location. Play FNAF: Ultimate Custom Night Online and you need to survive as long as possible. Start off with a security guard and you are trapped in a dark office. Keep calm and control tools carefully! The power will be reduced and you can get troubles with animatronic monsters when you run out of it before you win.
Instructions: Use the left mouse button to control tools, W-A-D to close the door