"Five Nights at Freddy’s: Security Breach" is an expansion of the iconic horror franchise, set in a vast, immersive location known as Freddy Fazbear’s Mega Pizzaplex. Unlike previous entries, which confined players to a single location with limited movement, this installment introduces a free-roaming gameplay mechanic, allowing players to explore the sprawling environment, which is filled with attractions, hidden secrets, and various characters. Players assume the role of a young boy named Gregory, who finds himself trapped overnight in the Pizzaplex and must evade animatronic monsters that come alive after hours.
Throughout the game, players navigate through different areas such as arcade zones, food courts, and elaborate show stages while solving puzzles and seeking items to aid in their survival. The game emphasizes stealth and strategy; players need to carefully plan their movements to avoid detection by not only the terrifying animatronics but also the game's antagonist, Vanessa, a security guard with sinister motives. "Security Breach" also features a new save system involving Freddy Fazbear, who assists Gregory in his attempts to escape, adding a compelling layer to gameplay as players balance their safety with the need for exploration and discovery in this chilling, yet vibrant world.