Try as we might, it's impossible to turn away from our darkest fears as Halloween creeps up -- the cold, gloomy nights; the zombies, vampires, and witches appearing at our doorsteps; the visions of masked Michael Myers in our heads. So face your fears dead on with some of the scariest mobile games out there.

Fear of zombies: Walking Dead: The Game (Android, iOS; Metacritic score)

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If you suffer from kinemortophobia, or a fear of zombies, then you probably shouldn't be playing apocalyptic adventure Walking Dead: The Game. Set in the same universe as the acclaimed TV series and comic books, this game has you guide convicted murderer Lee Everett on a course of redemption. He hacks bloodthirsty zombies across five nightmarish episodes to save himself, an orphan named Clementine, and other survivors they encounter on their journey to find Clem's parents. If you find the rich storytelling and quick-reflex gameplay appealing, check out the sequels Walking Dead: The Game - Season 2 (Android, iOS) and The Walking Dead: Michonne (Android, iOS).

Fear of robots and/or dolls: Five Nights at Freddy's (Android, iOS; Metacritic score)

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A fear of robots (robophobia) typically develops in childhood, with sufferers imagining that someday machines will take over the world. Those who fear dolls (pediophobia) think that dolls will come to life and harm humans. Five Nights at Freddy's preys on both terrors. In the psychological adventure game, you play the night watchman at Freddy Fazbear's Pizza. Animatronic Freddy Fazbear and his two friends have been malfunctioning, and it's your job to fix them before they make you malfunction. If you survive those treacherous nights, test your survival skills in sequels Five Nights at Freddy's 2 (Android, iOS), Five Nights at Freddy's 3 (Android, iOS), Five Nights at Freddy's 4 (Android, iOS), and Five Nights at Freddy's 5 (iOS).

Fear of sleep and/or the dark: Dungeon Nightmares (Android, iOS)

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If you have a fear of sleeping (hypnophobia) or of the dark (nyctophobia), test yourself with the escape-room-style adventure Dungeon Nightmares. Each night your character falls asleep only to find themselves trapped in dark dungeon. Your goal is to make your way out of the night terrors by relying on your sense of sound and whatever tools or items you encounter. Take one wrong step and you'll never wake up again. But if you do live to see daylight, be sure to check out Dungeon Nightmares II (Android, iOS).

Fear of serial killers: Murder Room (Android, iOS)

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A fear of serial killers, or foniasophobia, can lead to major anxiety and obsessively ruminating about death. When a maniacal butcher is hunting you in Murder Room, your only comfort is that your fears are justified. The psychological horror game begins in a dark room, when you hear a sudden harsh mechanical grinding. As you make your way farther along, you'll come to a figure wearing a pig mask chainsawing a body on an operating table and reaching in for their entrails. Use your wits to escape or you may end up splattered on the table, too.

Fear of the unknown: Tormentum: Dark Sorrow (Android, iOS; Metacritic score)

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Whether it's caused by life-altering events like a messy divorce, a death of a loved one, or our inherent resistance to change, your fear of the unknown (xenophobia) will be tested by this point-and-click adventure game. In Tormentum: Dark Sorrow you play the nameless hero with no past crossing strange landscapes (an homage to the work of H.R. Giger, Swiss surrealist painter and Oscar-winning visual-effects designer for Alien) as he attempts to uncover the secrets of Tormentum and escape its gloomy world through clues, tools, puzzles, and mini games.

Joshua Rotter is a copy editor for Download.com and covers iOS.