Insomnia is a first-person survival horror game that places you in the perspective of a child trying to fend off mysterious figures looming just out of sight. Strategically use your home's security system to locate and track the movement of these figures, and keep a close eye on your bedroom. Silhouettes will slowly approach you throughout the night; it's your job to fend them off. Hear noises coming from your closet? Be sure to close the sliding door to ensure nothing comes after you! Notice someone stalking from the hallway? Quickly shut your bedroom door to keep them out! You have several tools at your disposal, and it's your job to use them accordingly.