Come to Five Nights At Freddy's 4 and defend yourself with an unknown duty till 6 AM. You need to watch the doors and shoo away any undesirable critters that might saunter into your closet or onto the bed behind you.
In this version, you will face more animatronics than Five Nights at Freddy's 3 and Five Nights At Freddy's 2. There are Freddy Fazbear, Chica, Bonnie, Foxy, and even a number of creepier creatures hiding in the shadows. Let's avoid them if you don't want to be eliminated.
In addition, you also fight Foxy and Nightmare Fredbear working alone on Night Five.
The only defense item is a flashlight. It will frighten off anything hiding at the end of the passageways. However, you should be careful when using a flashlight because flashing lights in something's eyes will get you if you get too close to it. Prepare to instantly close the closet door after checking it.
After playing this FNAF version, you can try the recent volume, called FNAF Security Breach.