How Ultimate Custom Night works

What it is: the 2018 free release where you build the night yourself
Roster: 50 animatronics from across the whole series
You set: which ones show up, and how aggressive each one is (0-20)
Length: one night, not five - but it does not get easier
Cost: free in the browser

In the game FNAF Ultimate Custom Night you spend one night in the office surrounded by animatronics you picked yourself. This game has 50 animatronics from every part of FNAF and simple controls - everything runs off the mouse.

You choose your favourite animatronics, set a difficulty from 0 to 20 for each of them, and then try to get to 6 AM. Monitor the doors, the air pipes and the ventilation holes. But do not think that you can simply close them and wait - power drains, the vents need resetting, and half the roster ignores doors entirely. If you are a fan of the horror genre, FNAF Ultimate Custom Night is sure to please you. Good luck!

What makes UCN different

You are not given a night - you design it, and the game scores you for it
Every animatronic has its own counter, and several of them conflict with each other
The office has a heater, a vent system, a duct system and an air fan to juggle at once
Beating specific presets unlocks cutscenes that fans spent years arguing about
50/20 mode - everyone at maximum - is one of the hardest things in the whole series

A few of the fifty

Springtrap - comes through the vents, stopped by the vent doors
Circus Baby - the only one you handle by feeding her, not blocking her
Nightmare Bonnie and Nightmare Chica - the doors again, exactly like the old games
Golden Freddy - punishes you for looking at the wrong screen
Dee Dee - drops in and adds someone new to the night mid-run

If the whole 50-strong roster is too much for a first go, the original two doors of FNAF 1 are the version everything here is built on, and the mask mechanic comes from FNAF 2.