Sci-fi on The Roku Channel: what is worth streaming right now (free with ads)

96 sci-fi titles on The Roku Channel (free with ads) at our last check, ranked by quality and fame, each with scare, gore and violence tags.

1. 1The Boys (2019) · seriesDark satire · gritty · full attention · brutal violence · TV-MACorrupt superheroes meet their match as gritty vigilantes fight dirty with dark, satirical wit.Prime Video · The Roku Channel
2. 2Death Note (2006) · seriesDark satire · suspenseful · full attention · mildly scary · TV-14A brilliant student uses a supernatural notebook to purge evil, leading to a gritty, darkly-comic game of cat and mouse.Netflix · Prime Video · Hulu
3. 3Naruto (2002) · seriesWholesome humor · epic · full attention · strong violence · TV-PGAn earnest young ninja pursues his epic dream of leadership, facing measured challenges with wholesome humor.Netflix · Prime Video · Hulu
4. 4Hunter x Hunter (2011) · seriesEpic · full attention · brutal violence · graphic gore · TV-14A determined young boy embarks on an epic, brisk adventure to find his father and become a legendary Hunter.Netflix · Prime Video · Hulu
5. 5InuYasha (2000) · seriesEpic · full attention · strong violence · mildly scary · TV-14An epic adventure unfolds as a modern girl is transported to feudal Japan, battling demons and discovering romance.Netflix · Prime Video · Hulu
6. 6Grimm (2011) · seriesGritty · full attention · strong violence · measured · TV-14A Portland detective’s grim lineage pulls him into a darkly comic and pulpy world of supernatural crime.Prime Video · Peacock · The Roku Channel
7. 7The Terminator (1984)Suspenseful · light gore · brutal violence · emotionally heavy · RA relentless cyborg assassin hunts a woman across 1980s Los Angeles, sparking a gritty fight for the future.Prime Video · The Roku Channel · YouTube (free)
8. 8Outlander (2014) · seriesRomantic · date night · strong violence · emotionally heavy · TV-MAA 1940s nurse is swept to 1743 Scotland, igniting a passionate, dangerous romance across centuries.Netflix · Starz · The Roku Channel
9. 9Ex Machina (2015)Suspenseful · late-night trip · emotionally heavy · measured · RA young programmer uncovers unsettling truths while testing the sentience of a reclusive CEO's AI creation.Hulu · The Roku Channel
10. 10Metropolis (1927)Epic · late-night trip · strong violence · emotionally heavy · NRA bleak, surreal, and epic drama unfolds in a futuristic city sharply divided by class.Kanopy · The Roku Channel · Pluto TV
11. 11Mr. Nobody (2009)Surreal · late-night trip · emotionally heavy · measured · RA man's life unfolds in multiple realities, a dreamlike journey through love, loss, and profound choices.Prime Video · Kanopy · Hoopla
12. 12Slugterra (2012) · seriesWholesome humor · family watch · brisk · TV-Y7A teen hero enters a secret subterranean world, embracing his destiny with brisk, wholesome, animated action.Prime Video · Hoopla · The Roku Channel
13. 13Ghost Whisperer (2005) · seriesMelancholy · comfort watch · emotionally heavy · measured · TV-PGA newlywed helps restless spirits find peace, navigating heartfelt messages and intense, confusing conflicts.Prime Video · The Roku Channel
14. 14Moon (2009)Melancholy · full attention · emotionally devastating · a slow burn · RA solitary astronaut's three-year mission unravels into a bleak, suspenseful mystery on the lunar surface.The Roku Channel · Pluto TV · YouTube (free)
15. 15Jackie Chan Adventures (2000) · seriesBig broad humor · whimsical · family watch · brisk · TV-Y7A globe-trotting martial arts expert and his spirited niece chase magical artifacts with wholesome, campy humor.The Roku Channel · Tubi
16. 16Tale of the Nine Tailed (2020) · seriesWholesome humor · suspenseful · late-night trip · emotionally heavy · TV-14A TV producer uncovers a secret supernatural world while a former deity searches centuries for his lost love.Netflix · Prime Video · The Roku Channel
17. 17My Little Pony: Friendship Is Magic (2010) · seriesWholesome humor · whimsical · family watch · measured · TV-YUnicorns and their pals journey through an enchanted land, learning wholesome lessons in a cozy, measured pace.Netflix · Prime Video · Hoopla
18. 18Predestination (2014)Suspenseful · light gore · strong violence · emotionally heavy · RA temporal agent's final mission to prevent a devastating attack becomes a cerebral, pulpy chase through time.The Roku Channel
19. 19Source Code (2011)Suspenseful · light gore · strong violence · emotionally heavy · PG-13A soldier repeatedly relives a train explosion, racing against time to find a bomber and alter fate.Kanopy · The Roku Channel · YouTube (free)
20. 20Doctor Who (2005) · seriesWholesome humor · whimsical · family watch · emotionally heavy · TV-PGA two-hearted alien travels all of time and space, saving planets with whimsy, suspense, and heart.AMC+ · Kanopy · Hoopla
21. 21RoboCop (1987)Gritty · extreme gore · brutal violence · emotionally heavy · RA brutally murdered cop becomes a cybernetic law enforcer in a brisk, darkly satirical, and pulpy thriller.MGM+ · The Roku Channel · YouTube (free)
22. 22Pucca (2006) · seriesBig broad humor · whimsical · family watch · brisk · TV-Y7A whirlwind of absurd adventures unfolds as a lovesick girl chases her ninja crush through a quirky village.Prime Video · The Roku Channel · Tubi
23. 23Ash vs Evil Dead (2015) · seriesProperly scary · extreme gore · brutal violence · relentless · TV-MAA chainsaw-wielding lothario battles a Deadite plague with relentless, raunchy, darkly-comic action.Starz · Prime Video · The Roku Channel
24. 24The Walking Dead: Daryl Dixon (2023) · seriesProperly scary · graphic gore · brutal violence · emotionally heavy · TV-MAWashing ashore in France, a lone survivor navigates a bleak, walker-infested landscape protecting a messianic boy.Netflix · AMC+ · Prime Video
25. 25Night of the Living Dead (1968)Properly scary · graphic gore · strong violence · emotionally heavy · NRStrangers barricade themselves in a farmhouse, facing relentless flesh-eating ghouls and bleak, chilling suspense.Max · Peacock · AMC+
26. 26Sailor Moon Crystal (2014) · seriesWholesome humor · whimsical · family watch · mildly scary · TV-14A magical girl embraces her destiny, fighting for justice with whimsical powers and an uplifting spirit.Netflix · Hulu · Crunchyroll
27. 27Happiness (2021) · seriesTense · full attention · strong violence · emotionally heavy · TV-14A deadly virus seals off an apartment building, forcing residents to confront class conflict and mounting dread.Netflix · The Roku Channel
28. 28World War Z (2013)Properly scary · graphic gore · brutal violence · emotionally heavy · PG-13A relentless global pandemic unleashes gritty, high-octane action as one man races to save humanity.Paramount+ · Peacock · Starz
29. 29Merlin (2008) · seriesWhimsical · comfort watch · measured · TV-PGA young wizard and a future king forge an unlikely bond, shaping destiny with magic and courage.Prime Video · The Roku Channel · Pluto TV
30. 30Goosebumps (1995) · seriesWholesome humor · whimsical · family watch · mildly scary · TV-GWholesome, darkly comic tales unfold as kids confront campy, spooky situations and mysterious, fantastical fears.Netflix · Prime Video · Paramount+
31. 31Doctor Who (1963) · seriesWholesome humor · whimsical · comfort watch · measured · TV-PGA whimsical Time Lord travels the universe in a blue box, earnestly saving civilizations with measured grace.The Roku Channel · Tubi
32. 32A Discovery of Witches (2018) · seriesRomantic · date night · emotionally heavy · measured · TV-MAA forbidden romance between a witch and a vampire ignites an atmospheric, suspenseful quest through a magical world.Netflix · AMC+ · Hoopla
33. 33Farscape (1999) · seriesEpic · full attention · strong violence · emotionally heavy · TV-14An astronaut hurtles across galaxies, landing in the middle of a relentless, gritty alien war.Prime Video · Peacock · The Roku Channel
34. 34I Dream of Jeannie (1965) · seriesWholesome humor · whimsical · family watch · measured · TV-GAn astronaut's life gets whimsically upended by a devoted, two-thousand-year-old genie and her wholesome magic.The Roku Channel · Tubi
35. 35Dark City (1998)Suspenseful · late-night trip · emotionally heavy · measured · RA man's fractured memories haunt him in a sunless, surreal city controlled by telekinetic beings.Kanopy · The Roku Channel · Plex
36. 36Megamind (2010)Big broad humor · whimsical · family watch · brisk · PGA brilliant alien villain finds his true calling when he must save the city from his own heroic creation.Peacock · The Roku Channel
37. 37Bewitched (1964) · seriesWholesome humor · whimsical · family watch · measured · TV-GA suburban witch navigates wholesome magical mishaps while her husband tries to keep her powers a secret.Hulu · The Roku Channel · Tubi
38. 38Doom at Your Service (2021) · seriesWholesome humor · melancholy · date night · emotionally heavyA whimsical romance blossoms between a dying woman and a supernatural being, finding feel-good love in melancholy circumstances.Netflix · The Roku Channel · Tubi
39. 39H2O: Just Add Water (2006) · seriesWholesome humor · whimsical · family watch · measured · TV-PGThree teenage friends navigate everyday drama while secretly transforming into mermaids with every splash.Netflix · Prime Video · Hoopla
40. 40ALF (1986) · seriesWholesome humor · whimsical · family watch · measured · TV-GA furry alien wiseguy brings chaos and wholesome humor to a suburban family's cozy home.Prime Video · Peacock · The Roku Channel
41. 41Dirk Gently's Holistic Detective Agency (2016) · seriesDry wit · absurdist · late-night trip · brisk · TV-14An eccentric detective and his assistant stumble through a surreal, briskly paced world of witty, absurdist crime.AMC+ · The Roku Channel
42. 42Knight Rider (1982) · seriesPulpy · comfort watch · brisk · TV-PGA lone crimefighter and his indestructible, talking car deliver justice with brisk, pulpy action and campy charm.The Roku Channel · Tubi
43. 43The Mist (2007)Terrifying · graphic gore · strong violence · emotionally devastating · RA relentless mist descends, trapping townsfolk in a grocery store with unseen, chilling horrors and mounting dread.Prime Video · AMC+ · Kanopy
44. 44Frequency (2000)Suspenseful · light gore · strong violence · emotionally heavy · PG-13A son’s desperate call to the past creates a ripple of brutal crimes and a bittersweet fight for the future.Kanopy · The Roku Channel · Plex
45. 45Into the Badlands (2015) · seriesGritty · full attention · brutal violence · graphic gore · TV-14A ruthless warrior guides a boy through a feudal land, facing relentless action and pulpy, gritty adventure.AMC+ · Hoopla · The Roku Channel
46. 46Dredd (2012)Gritty · full attention · brutal violence · graphic gore · RRelentless action meets gritty sci-fi as a lone lawman battles a ruthless drug lord in a dystopian city.The Roku Channel · YouTube (free)
47. 47Continuum (2012) · seriesSuspenseful · full attention · strong violence · brisk · TV-14A cop from the future hunts ruthless time-traveling rebels in a gritty, suspenseful urban war.Prime Video · Peacock · The Roku Channel
48. 48Stargate (1994)Epic · full attention · strong violence · brisk · PG-13An ancient Egyptian artifact teleports a team to a desert world where humans worship a powerful false god.The Roku Channel · YouTube (free)
49. 49The Lost Room (2006) · seriesSuspenseful · full attention · emotionally heavy · measured · TV-PGA detective uncovers a motel room that opens to another universe, where suspense builds with every measured step.The Roku Channel · Plex · Tubi
50. 50Escape from New York (1981)Gritty · light gore · strong violence · brisk · RA hardened war hero has one day to rescue the president from a lawless, island-sized maximum-security prison.Kanopy · The Roku Channel · Plex
51. 51Snowpiercer (2020) · seriesGritty · full attention · strong violence · emotionally heavy · TV-MAHumanity's last survivors circle a frozen Earth, battling class warfare and injustice in a bleak, suspenseful future.Prime Video · Hulu · Peacock
52. 52The Terror (2018) · seriesProperly scary · light gore · strong violence · emotionally devastating · TV-14Chilling historical events unfold in terrifying situations, creating a slow-burn mystery with a bleak and atmospheric tone.AMC+ · The Roku Channel · Plex
53. 53Humans (2015) · seriesSuspenseful · late-night trip · emotionally heavy · measured · TV-14Highly developed robotic servants create unsettling domestic drama and cerebral mystery in a parallel present.Prime Video · Peacock · Hoopla
54. 54Second chance (2005) · seriesSuspenseful · full attention · emotionally heavy · measured · NRA man returns from the dead to uncover his beautiful widow's dark secrets in this intimate, pulpy mystery.Peacock · The Roku Channel
55. 55Dead Like Me (2003) · seriesDark satire · whimsical · late-night trip · emotionally heavy · TV-14A cynical young woman navigates the afterlife as a grim reaper, finding the bureaucracy of death surprisingly whimsical.Prime Video · The Roku Channel · Plex
56. 56Spaceballs (1987)Big broad humor · satirical · comfort watch · brisk · PGA brisk, campy space adventure unfolds with broad humor and witty satire as heroes race to save a princess.Prime Video · Kanopy · Hoopla
57. 57Medium (2005) · seriesSuspenseful · full attention · emotionally heavy · measured · TV-14A psychic's unsettling dreams and earnest visions guide investigators through gritty, suspenseful crime scenes.Paramount+ · The Roku Channel · Fandango at Home (free)
58. 58American Gods (2017) · seriesDark satire · surreal · late-night trip · strong violence · TV-MAEx-cons and ancient gods clash in a surreal, darkly comic battle for the soul of America.Prime Video · The Roku Channel · Tubi
59. 59The Thirteenth Floor (1999)Suspenseful · emotionally heavy · measured · RA programmer uncovers a chilling secret about his reality, blurring the lines of existence.The Roku Channel · YouTube (free) · Tubi
60. 60Haven (2010) · seriesSuspenseful · late-night trip · measured · TV-14An FBI agent unravels a small town's gritty secrets that connect to her own mysterious past.Prime Video · Peacock · The Roku Channel
61. 61The Giver (2014)Earnest · full attention · emotionally heavy · measured · PG-13A boy discovers the heavy burden of memory and emotion in a world engineered for blissful ignorance.Kanopy · Hoopla · The Roku Channel
62. 62The Jacket (2005)Suspenseful · emotionally heavy · measured · RA veteran's journey into a surreal future blurs reality as he foresees his death and races to understand it.Hoopla · The Roku Channel · Plex
63. 63District B13 (2004)Gritty · light gore · brutal violence · relentless · RIn a gritty 2010 Paris, an undercover cop and an ex-thug relentlessly race to defuse a neutron bomb.Prime Video · Kanopy · The Roku Channel
64. 64Power Rangers (1993) · seriesBig broad humor · crowd pleasing · family watch · strong violence · TV-Y7Teenagers with attitude morph into heroes, battling an evil witch and her monsters in brisk, broad, campy adventures.Netflix · Prime Video · Tubi
65. 65Mars Attacks! (1996)Dark satire · campy · party watch · strong violence · PG-13Humanity faces absurdly campy Martian invaders whose "peaceful" intentions quickly turn into darkly comic annihilation.Kanopy · The Roku Channel · Plex
66. 66Van Helsing (2016) · seriesGritty · full attention · brutal violence · graphic gore · TV-14A resurrected vampire hunter with unique powers leads humanity's gritty fight against a world overrun by the undead.Prime Video · The Roku Channel · Fandango at Home (free)
67. 67Pandorum (2009)Properly scary · graphic gore · strong violence · brisk · RTwo amnesiac astronauts awaken to a chilling, pulpy nightmare on a gritty, abandoned spacecraft.Kanopy · Hoopla · The Roku Channel
68. 68No One Will Save You (2023)Terrifying · light gore · strong violence · emotionally heavy · PG-13A lonely woman fights for survival against an alien invasion while confronting her own dark history.Hulu · The Roku Channel
69. 69The Host (2013)Epic · full attention · strong violence · emotionally heavy · PG-13An alien soul inhabits a human body, forming an earnest bond and aiding free humans in a suspenseful, epic adventure.The Roku Channel · YouTube (free) · Plex
70. 70Colony (2016) · seriesTense · full attention · strong violence · emotionally heavy · TV-14Occupied Los Angeles forces a family to make impossible choices for survival, where collaboration and rebellion both carry a heavy cost.Prime Video · The Roku Channel · Tubi
71. 71Hardcore Henry (2015)High octane · late-night trip · brutal violence · extreme gore · RA resurrected cyborg battles a telekinetic tyrant and his army through a relentless, high-octane, pulpy Moscow.Kanopy · The Roku Channel · Plex
72. 72Transcendence (2014)Cerebral · emotionally heavy · measured · PG-13Computer scientists race toward digital immortality while an anti-technology group fights a bleak, cerebral future.The Roku Channel · Plex · Tubi
73. 73Upside Down (2012)Romantic · date night · emotionally heavy · measured · PG-13Two lovers defy opposing gravities and societal prejudice in a surreal, dreamlike quest for reunion.Prime Video · Kanopy · Hoopla
74. 74Total Recall (2012)Suspenseful · graphic gore · brutal violence · emotionally heavy · PG-13A factory worker's implanted spy memories trigger a gritty, relentless fight for survival against a corrupt chancellor.Prime Video · The Roku Channel
75. 75Daybreakers (2010)Gritty · full attention · strong violence · graphic gore · RA blood shortage forces vampires to farm humans while a researcher secretly develops a cure for the plague.Kanopy · Hoopla · The Roku Channel
76. 76RoboCop (2014)Gritty · graphic gore · brutal violence · emotionally heavy · PG-13A gravely injured cop becomes a cyborg crime fighter, navigating a gritty world of corporate greed and suspenseful action.MGM+ · The Roku Channel · Tubi
77. 77Astro Boy (2009)Wholesome humor · epic · family watch · measured · PGA powerful robot boy with a pure heart searches for acceptance while saving his futuristic city.Starz · The Roku Channel
78. 78Vivarium (2019)Mildly scary · no gore · emotionally heavy · a slow burn · RA young couple is trapped in a surreal housing development, forced to raise a chilling, otherworldly child.Kanopy · Hoopla · The Roku Channel
79. 79Final Fantasy: The Spirits Within (2001)Epic · late-night trip · strong violence · mildly scary · PG-13A scientist races against time, gathering eight spirits to save Earth from an alien phantom menace.The Roku Channel · YouTube (free) · Tubi
80. 80Sphere (1998)Suspenseful · emotionally heavy · measured · PG-13Scientists plunge into the deep, unraveling an alien mystery that twists perception and unravels sanity.Kanopy · The Roku Channel · Plex
81. 81Color Out of Space (2020)Properly scary · graphic gore · emotionally heavy · measured · RA meteorite crashes, infecting a family farm with a mutating, otherworldly color that warps space and time.AMC+ · Hoopla · The Roku Channel
82. 82Hotel Artemis (2018)Gritty · graphic gore · brutal violence · emotionally heavy · RA gritty, brisk crime thriller unfolds in a clandestine hospital for criminals during a riot-torn future Los Angeles.Kanopy · The Roku Channel · Plex
83. 83Species (1995)Properly scary · graphic gore · strong violence · brisk · RA team of scientists hunts a beautiful, deadly alien hybrid that hungers for human procreation.MGM+ · Hoopla · Pluto TV
84. 84Replicas (2018)Suspenseful · light gore · strong violence · emotionally heavy · PG-13A desperate scientist races against time, blurring ethical lines to resurrect his family after tragedy strikes.Prime Video · The Roku Channel · Tubi
85. 85Lockout (2012)Pulpy · light gore · strong violence · relentless · PG-13A wrongly accused agent faces relentless, high-octane danger to rescue the President's daughter from a gritty space prison.The Roku Channel · Tubi
86. 86Automata (2014)Suspenseful · light gore · strong violence · emotionally heavy · RA corporate insurance agent uncovers a robot conspiracy that will reshape humanity's bleak future.Prime Video · Kanopy · Hoopla
87. 87Absolutely Anything (2015)Absurdist humor · whimsical · party watch · measured · RA man gains unlimited power from aliens, leading to a darkly comic and absurdist test for humanity.Prime Video · Hoopla · The Roku Channel
88. 88Gamer (2009)Gritty · graphic gore · brutal violence · emotionally heavy · RA controlled prisoner fights for freedom in a gritty, high-octane game where human lives are pawns.Kanopy · Hoopla · The Roku Channel
89. 89Dreamcatcher (2003)Properly scary · graphic gore · strong violence · emotionally heavy · RChildhood friends reunite for a hunting trip, encountering a grotesque alien invasion that warps memory and reality.Hoopla · The Roku Channel · YouTube (free)
90. 90Maggie (2015)Mildly scary · light gore · emotionally devastating · a slow burn · PG-13A father fights to protect his infected daughter as a bleak zombie epidemic slowly consumes humanity.Hoopla · The Roku Channel · Plex
91. 91The Lazarus Effect (2015)Properly scary · light gore · strong violence · emotionally heavy · PG-13Scientists revive the dead, but a chilling twist of fate brings a terrifying new reality.Prime Video · Hulu · Peacock
92. 92Superhero Movie (2008)Big broad humor · absurdist · party watch · brisk · PG-13A nerdy teen gains powers from a radioactive dragonfly, leading to broad, raunchy, and campy superheroics.Hoopla · The Roku Channel · Fandango at Home (free)
93. 93The Darkest Hour (2011)Mildly scary · light gore · strong violence · relentless · PG-13Five young people in Moscow battle an alien invasion that exploits Earth's power grid.Kanopy · The Roku Channel · YouTube (free)
94. 94Skyline (2010)Suspenseful · light gore · strong violence · relentless · PG-13Strange lights lure Angelenos into a relentless, gritty fight for survival against an alien menace.Prime Video · Hulu · The Roku Channel
95. 95RoboCop 3 (1993)Gritty · graphic gore · brutal violence · brisk · PG-13A cyborg lawman defends Detroit's citizens from a ruthless corporation and its mercenary army.MGM+ · The Roku Channel · YouTube (free)
96. 96Sharknado (2013)Mildly scary · graphic gore · strong violence · relentless · RA relentless, absurd hurricane of sharks and broad humor floods Los Angeles, promising crowd-pleasing, campy action.Prime Video · Peacock · AMC+

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