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The Best Monster TV Shows on Free Services

Finding a good Monster TV show to watch can be hard, so we've ranked the best ones and included where to watch them. Check out our list of the best Monster TV shows of all time streaming on Free Services.

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1. Supernatural

IMDB LogoIMDB Star
8.4/10
Rotten Tomatoes Logo93%
Reelgood Logo
93/100
Year: 2005-2020Rated: TV-14Seasons: 16
Drama, Fantasy

What it's about: When they were boys, Sam and Dean Winchester lost their mother to a mysterious and demonic supernatural force. Subsequently, their father raised them to be soldiers. He taught them about the paranormal evil that lives in the dark corners and on the back roads of America ... and he taught them how to kill it. Now, the Winchester brothers crisscross the country in their '67 Chevy Impala, battling every kind of supernatural threat they encounter along the way.

Where to Watch: 5 episodes (2%) are available to watch free online (The CW). 320 episodes (99%) are available to stream on a popular subscription service (Netflix & fuboTV). 8 episodes (2%) are available to stream on a popular TV everywhere service (TNT). 322 episodes (100%) are available to rent or buy from $1.99 on 6 services (iTunes, Google Play & 4 others).

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2. Attack on Titan

IMDB LogoIMDB Star
8.8/10
Rotten Tomatoes Logo94%
Reelgood Logo
92/100
Year: 2013-2020Rated: TV-14Seasons: 3
Action & Adventure, Anime

What it's about: Several hundred years ago, humans were nearly exterminated by Titans. Titans are typically several stories tall, seem to have no intelligence, devour human beings and, worst of all, seem to do it for the pleasure rather than as a food source. A small percentage of humanity survived by walling themselves in a city protected by extremely high walls, even taller than the biggest Titans. Flash forward to the present and the city has not seen a Titan in over 100 years. Teenage boy Eren and his foster sister Mikasa witness something horrific as the city walls are destroyed by a Colossal Titan that appears out of thin air. As the smaller Titans flood the city, the two kids watch in horror as their mother is eaten alive. Eren vows that he will murder every single Titan and take revenge for all of mankind.

Where to Watch: 59 episodes (98%) are available to watch free online (Adult Swim, Crunchyroll & Tubi). 59 episodes (98%) are available to stream on a popular subscription service (Netflix, Hulu, Crunchyroll & 2 others). 48 episodes (80%) are available to stream on a TV everywhere service (Adult Swim). 59 episodes (98%) are available to rent or buy from $0.99 on 5 services (iTunes, Google Play & 3 others).

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3. One-Punch Man

IMDB LogoIMDB Star
8.8/10
Rotten Tomatoes Logo100%
Reelgood Logo
90/100
Year: 2015-2020Rated: TV-14Seasons: 2
Animation, Anime

What it's about: Saitama is a hero who only became a hero for fun. After three years of “special” training, though, he’s become so strong that he’s practically invincible. In fact, he’s too strong—even his mightiest opponents are taken out with a single punch, and it turns out that being devastatingly powerful is actually kind of a bore. With his passion for being a hero lost along with his hair, yet still faced with new enemies every day, how much longer can he keep it going?

Where to Watch: 15 episodes (60%) are available to watch free online (Adult Swim, Crunchyroll & Tubi). 24 episodes (96%) are available to stream on a popular subscription service (Netflix, Hulu & fuboTV). 18 episodes (72%) are available to stream on a TV everywhere service (Adult Swim). 13 episodes (52%) are available to rent or buy from $1.99 on 4 services (iTunes, Google Play & 2 others).

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4. Tokyo Ghoul

IMDB LogoIMDB Star
7.9/10
Rotten Tomatoes Logo100%
Reelgood Logo
82/100
Year: 2014-2020Rated: TV-MASeasons: 4
Action & Adventure, Anime

What it's about: Ken Kaneki is a bookworm college student who meets a girl names Rize at a cafe he frequents. They're the same age and have the same interests, so they quickly become close. Little does Kaneki know that Rize is a ghoul - a kind of monster that lives by hunting and devouring human flesh. When part of her special organ - "the red child" - is transplanted into Kaneki, he becomes a ghoul himself, trapped in a warped world where humans are not the top of the food chain.

Where to Watch: 7 episodes (15%) are available to watch free online (Adult Swim). 37 episodes (77%) are available to stream on a popular subscription service (Hulu & Funimation). 48 episodes (100%) are available to rent or buy from $0.99 on 5 services (iTunes, Google Play & 3 others).

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5. Monster Musume: Everyday Life with Monster Girls

IMDB LogoIMDB Star
6.7/10
Rotten Tomatoes LogoN/A
Reelgood Logo
69/100
Year: 2017-2020Rated: TV-MASeasons: 1
Animation, Anime

What it's about: Three years ago, the world learned that harpies, centaurs, catgirls, and all manners of fabulous creatures are not merely fiction; they are flesh and blood - not to mention scale, feather, horn, and fang. Thanks to the "Cultural Exchange Between Species Act," these once-mythical creatures have assimilated into society, or at least, they're trying. When a hapless human teenager named Kurusu Kimihito is inducted as a "volunteer" into the government exchange program, his world is turned upside down. A snake-like lamia named Miia comes to live with him, and it is Kurusu's job to take care of her and make sure she integrates into his everyday life.

Where to Watch: 12 episodes (100%) are available to watch free online (Crunchyroll & Tubi). 12 episodes (100%) are available to stream on a popular subscription service (Hulu).

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6. Primeval

IMDB LogoIMDB Star
7.3/10
Rotten Tomatoes LogoN/A
Reelgood Logo
67/100
Year: 2007-2020Rated: TV-14Seasons: 6
Action & Adventure, Fantasy

What it's about: When strange anomalies start to appear all over England, Professor Cutter and his team must track down and capture all sorts of dangerous prehistoric creatures from Earth's distant past and near future.

Where to Watch: 36 episodes (100%) are available to watch free online (CW Seed). 36 episodes (100%) are available to rent or buy from $0.99 on 5 services (iTunes, Google Play & 3 others).

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7. Is It Wrong to Try to Pick Up Girls in a Dungeon?

IMDB LogoIMDB Star
7.4/10
Rotten Tomatoes LogoN/A
Reelgood Logo
66/100
Year: 2015-2020Rated: TV-14Seasons: 3
Animation, Anime

What it's about: In a world, where the deities have descended from the heavens lies the town of Orario that features the Dungeon, which contains an assortment of monsters from goblins to dragons. Adventurers slay those monsters and take their shards, which are then used to craft magic items. To become an adventurer, people join groups called Familia. Each of which is named after and serves a resident deity. The adventurers and their attributes and abilities are ranked by level, improved by experience and supervised by their Familia's deity. Bell Cranel, a novice adventurer, is the sole member of the Familia under the goddess Hestia. After being saved by top level adventurer Ais Wallenstein of the Loki Familia, he falls in love with her and decides to improve and become worthy of her attention. All the while mostly unaware that other girls, deities and mortals, also develop feelings for him. Especially Hestia herself.

Where to Watch: 25 episodes (93%) are available to watch free online (Crunchyroll). 26 episodes (96%) are available to stream on a popular subscription service (Netflix & Hulu). 13 episodes (48%) are available to rent or buy from $1.99 on 2 services (iTunes & Vudu).

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8. Kolchak: The Night Stalker

IMDB LogoIMDB Star
8.5/10
Rotten Tomatoes LogoN/A
Reelgood Logo
65/100
Year: 1974-2020Rated: TV-PGSeasons: 1
Drama, Science-Fiction

What it's about: Kolchak: The Night Stalker is an American television series that aired on ABC during the 1974–1975 season. It featured a fictional Chicago newspaper reporter who investigated mysterious crimes with unlikely causes, particularly those that law enforcement authorities would not follow up. These often involved the supernatural or even science fiction, including fantastic creatures.

Where to Watch: 20 episodes (100%) are available to watch free online (NBC). 20 episodes (100%) are available to rent or buy from $0.99 on 2 services (iTunes & Prime Video).

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9. Surface

IMDB LogoIMDB Star
7.2/10
Rotten Tomatoes Logo17%
Reelgood Logo
62/100
Year: 2005-2020Rated: TV-PGSeasons: 1
Science-Fiction, Action & Adventure

What it's about: A marine biologist, an insurance salesman and a teenage boy find their lives changed when a new and often dangerous sea life species emerges, while the government tries to keep the affair under wraps.

Where to Watch: 15 episodes (100%) are available to watch free online (NBC). 15 episodes (100%) are available to rent or buy from $1.99 on 2 services (iTunes & Prime Video).

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10. God Eater

IMDB LogoIMDB Star
7.0/10
Rotten Tomatoes LogoN/A
Reelgood Logo
58/100
Year: 2015-2020Rated: TV-14Seasons: 1
Action & Adventure, Anime

What it's about: In the early 2050s, unknown life forms called “Oracle cells” begin their uncontrolled consumption of all life on Earth. Their ravenous appetite and remarkable adaptability earn them first dread, then awe, and finally the name “aragami”. In the face of an enemy completely immune to conventional weapons, urban civilization collapses, and each day humanity is driven further and further toward extinction. One single ray of hope remains for humanity. Following the development of “God Arcs”—living weapons which incorporate Oracle cells—their wielders are organized into an elite force.

Where to Watch: 13 episodes (100%) are available to watch free online (Crunchyroll). 13 episodes (100%) are available to stream on a popular subscription service (Netflix).

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11. Beyond the Boundary

IMDB LogoIMDB Star
7.3/10
Rotten Tomatoes LogoN/A
Reelgood Logo
57/100
Year: 2013-2020Rated: TV-14Seasons: 2
Action & Adventure, Anime

What it's about: The dark fantasy follows a high school sophomore named Akihito Kanbara. Although the boy appears human, he is half Youmu and invulnerable to wounds because he can heal quickly. One day, Akihito meets freshman Mirai Kuriyama when it seems she is about to jump from the school rooftop. Mirai is isolated because of her ability to manipulate blood, which is considered heresy among members of the spirit world. Disturbing events begin to unfold after Akihito saves Mirai.

Where to Watch: 12 episodes (100%) are available to watch free online (Crunchyroll & Tubi). 12 episodes (100%) are available to stream on a popular subscription service (Hulu). 12 episodes (100%) are available to rent or buy from $1.99 on 3 services (iTunes, Prime Video & Vudu).

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12. Tremors

IMDB LogoIMDB Star
6.6/10
Rotten Tomatoes LogoN/A
Reelgood Logo
54/100
Year: 2003-2020Seasons: 1
Action & Adventure, Comedy

What it's about: Tremors: The Series is a television spin-off of the Tremors franchise. Originally airing out of order on the Sci-Fi Channel, it was later aired in its proper sequence on the G4 Network.

Where to Watch: 1 episodes (8%) are available to watch free online (NBC). 12 episodes (92%) are available to rent or buy from $1.99 on 1 service (Prime Video).

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13. Myriad Colors Phantom World

IMDB LogoIMDB Star
6.2/10
Rotten Tomatoes LogoN/A
Reelgood Logo
48/100
Year: 2016-2020Rated: TV-14Seasons: 2
Animation, Anime

What it's about: In the near future, in a world born of human imagination, what humans would call ghosts or monsters appear, and they come to be called "phantoms." Haruhiko Ichijō, is a first year at Hosea Academy along with his upperclassman Mai Kawakami, who fights phantoms with the ability "Spirit of Five Elements," Reina Izumi, who has the ability "Phantom Eater," and Koito Minase, who fights phantoms in solitude. They experience the ups and downs of high school life before a certain incident leads them to the truth of this world.

Where to Watch: 13 episodes (50%) are available to watch free online (Crunchyroll). 13 episodes (50%) are available to rent or buy from $0.99 on 4 services (iTunes, Google Play & 2 others).

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14. WorldEnd: What are you doing at the end of the world? Are you busy? Will you save us?

IMDB LogoIMDB Star
7.3/10
Rotten Tomatoes LogoN/A
Reelgood Logo
47/100
Year: 2017-2020Rated: TV-14Seasons: 1
Animation, Anime

What it's about: The fleeting and sad story about little girls known as fairy weapons and an associate hero that survived. This is a world after it was attacked by unidentified monsters known as beasts and many of the species in the world, including humans, had been destroyed. The species that had managed to survived left the ground and were living on a floating island called Regal Ele. Willem Kmetsch wakes up above the clouds 500 years later and couldn’t protect the ones who he wanted to protect. Actually, he was living in despair because he was the only survivor.

Where to Watch: 12 episodes (100%) are available to watch free online (Crunchyroll). 12 episodes (100%) are available to stream on a subscription service (Funimation). 12 episodes (100%) are available to rent or buy from $1.99 on 2 services (iTunes & Prime Video).

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15. Monsters Among Us

IMDB LogoIMDB Star
7.6/10
Rotten Tomatoes LogoN/A
Reelgood Logo
36/100
Year: 2015-2020Rated: TV-PGSeasons: 1
Documentary, Biography

What it's about: Monsters. Ghosts. Zombies. From horror movies to Halloween, we see the creatures that go bump in the night everywhere, but where did they come from?

Where to Watch: 7 episodes (100%) are available to watch free online (Tubi & Vudu). 7 episodes (100%) are available to rent or buy from $0.99 on 4 services (iTunes, Google Play & 2 others).

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16. Battle Girl High School

IMDB LogoIMDB StarN/A
Rotten Tomatoes LogoN/A
Reelgood Logo
28/100
Year: 2017-2020Seasons: 1
Animation, Comedy

What it's about: Based on COLOPL's school action role-playing game. Set in the year 2045. The world has been contaminated by Irousu (mysterious invaders who suddenly appeared), and humans find themselves restricted and contained. Standing boldly against these invaders are ordinary girls everywhere, without a powerful army or even weapons.

Where to Watch: 12 episodes (100%) are available to watch free online (Crunchyroll).

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17. Merc Storia: The Apathetic Boy and the Girl in a Bottle

IMDB LogoIMDB Star
5.7/10
Rotten Tomatoes LogoN/A
Reelgood Logo
27/100
Year: 2018-2020Rated: TV-14Seasons: 1
Action & Adventure, Anime

What it's about: Merc Storia takes places in a world where humans and monsters coexist. The protagonist, Yuu, is a healer apprentice and possesses the ability to tame monsters. In a quest to regain the memories of Merc, a girl confined in a bottle, the pair embarks on a journey.

Where to Watch: 12 episodes (100%) are available to watch free online (Crunchyroll).