The main objective in Five Nights at Freddy's is to survive five nights as the night security guard at Freddy Fazbear's Pizza without being attacked by the animatronics.

You can protect yourself by monitoring the animatronics through the surveillance cameras and closing doors to barricade yourself in your office. However, excessive use of doors will deplete the power supply, making you more vulnerable.

During the day, the animatronics are programmed to entertain children and appear friendly. However, at night, they malfunction and become hostile, roaming the premises in search of intruders.

No, you cannot interact with the animatronics directly. Your only tools are the cameras and the doors to monitor and protect yourself from them.

If you run out of power, the animatronics can freely enter your office, and you lose the game if they reach you.

Yes, the game offers different difficulty settings to cater to both beginners and experienced players. Higher difficulties increase the speed and intelligence of the animatronics.

The core gameplay focuses on survival mode where you must last through five nights. There are also additional story elements revealed through hidden audio logs and other interactive features within the game.

Improving your chances involves learning the patterns of the animatronics, using the cameras strategically, and conserving power by minimizing door closures. Practice makes perfect in this nerve-wracking game.