Little Nightmares II is a puzzle-platformer and survival horror game in which players control Mono, a young boy navigating a nightmarish world warped by the transmission of a distant Signal Tower. Gameplay combines environmental puzzle-solving with stealth and light combat, as Mono and his AI companion Six work together to evade grotesque enemies and traverse dangerous environments. The game is a prequel to the original Little Nightmares and features collectible items that unlock additional story content.