(Photo by Netflix/ courtesy Everett Collection)

Best Science Fiction Movies of 2021, Ranked by Tomatometer

Welcome to our guide to the best science-fiction movies of 2021, where we feature Fresh and Certified Fresh genre films from the year. Among 2021’s best you’ll find kaiju death-matches (Godzilla vs. Kong), time loops (The Map of Tiny Perfect Things, Boss Level), superhero and horror hybrids (In the Earth, Black Widow), and mind-blowing animation (The Mitchells vs. The Machines, Evangelion 3.0+1.0 Thrice Upon a Time).

Check back as we add more to the best-reviewed sci-fi movies of 2021! (Plus, we’re doing the same for 2021’s action movies, horror movies, and the overall best movies of the year.)

#16

Space Sweepers (2021)
69%

#16
Adjusted Score: 69516%
Critics Consensus: As a story, Space Sweepers isn't as adventurous as its star-navigating protagonists -- but relatable characters and impressive effects keep it from drifting out of orbit.
Synopsis: After snatching a crashed space shuttle in the latest debris chase, Spaceship Victory's crew members find a 7-year-old girl inside.... [More]
Directed By: Jo Sung-hee

#15

Meander (2020)
75%

#15
Adjusted Score: 52503%
Critics Consensus: No consensus yet.
Synopsis: After getting a car ride from an unknown man, Lisa wakes up in a tube. On her arm is strapped... [More]
Directed By: Mathieu Turi

#14

Boss Level (2021)
74%

#14
Adjusted Score: 77779%
Critics Consensus: Boss Level powers up the increasingly crowded time-loop genre with a gleefully over-the-top sci-fi action thriller that revels in its own excess.
Synopsis: Trapped in a time loop that constantly repeats the day of his murder, former special forces agent Roy Pulver (Frank... [More]
Directed By: Joe Carnahan

#13
#13
Adjusted Score: 95449%
Critics Consensus: Delivering squarely on its title, Godzilla vs. Kong swats away character development and human drama to deliver all the spectacle you'd expect from giant monsters slugging it out.
Synopsis: Legends collide in "Godzilla vs. Kong" as these mythic adversaries meet in a spectacular battle for the ages, with the... [More]
Directed By: Adam Wingard

#12
Adjusted Score: 79254%
Critics Consensus: Its characters' time-loop journey is a little bumpy and fairly familiar, but heartfelt charm and likeable leads make A Map of Tiny Perfect Things worth following.
Synopsis: The film tells the story of quick-witted teen Mark, contentedly living the same day in an endless loop whose world... [More]
Directed By: Ian Samuels

#11

Stowaway (2021)
76%

#11
Adjusted Score: 81180%
Critics Consensus: Pacing problems prevent Stowaway from fully engaging, but it's distinguished by its thoughtful, well-acted approach to a story built on an excruciating moral dilemma.
Synopsis: A three-person crew on a mission to Mars faces an impossible choice when an unplanned passenger jeopardizes the lives of... [More]
Directed By: Joe Penna

#10

Fried Barry (2020)
80%

#10
Adjusted Score: 81439%
Critics Consensus: A bizarrely memorable sci-fi/comedy hybrid, Fried Barry may be an acquired taste, but it certainly isn't chicken.
Synopsis: Aliens take over the body of a drug addict and take it for a joyride through Cape Town.... [More]
Directed By: Ryan Kruger

#9

In The Earth (2021)
79%

#9
Adjusted Score: 87911%
Critics Consensus: In the Earth's bleak kaleidoscope of horror is a hallucinogenic meditation on the residual pandemic fears that haunt humanity.
Synopsis: As the world searches for a cure to a disastrous virus, a scientist and park scout venture deep in the... [More]
Directed By: Ben Wheatley

#8

Black Widow (2021)
79%

#8
Adjusted Score: 103921%
Critics Consensus: Black Widow's deeper themes are drowned out in all the action, but it remains a solidly entertaining standalone adventure that's rounded out by a stellar supporting cast.
Synopsis: Natasha Romanoff, aka Black Widow, confronts the darker parts of her ledger when a dangerous conspiracy with ties to her... [More]
Directed By: Cate Shortland

#7

Free Guy (2021)
80%

#7
Adjusted Score: 95913%
Critics Consensus: Combining a clever concept, sweet, self-aware humor, and a charming cast, Free Guy is frivolous fun.
Synopsis: In "Free Guy," a bank teller who discovers he is actually a background player in an open-world video game, decides... [More]
Directed By: Shawn Levy

#6

Oxygen (2021)
88%

#6
Adjusted Score: 91654%
Critics Consensus: Oxygen gets the white-knuckle maximum out of its claustrophobic setting, with director Alexandre Aja and star Mélanie Laurent making this a must-watch thriller for sci-fi fans.
Synopsis: Oxygen is a French survival thriller directed by Alexandre Aja. The film tells the story of a young woman (Mélanie... [More]
Directed By: Alexandre Aja

#5

Little Fish (2020)
91%

#5
Adjusted Score: 93489%
Critics Consensus: Tough but stirring, Little Fish uses one couple's pandemic love story to illustrate the strength of human connection in trying times.
Synopsis: Little Fish, the fourth feature film from director Chad Hartigan, is a romance set in a near-future Seattle teetering on... [More]
Directed By: Chad Hartigan

#4
#4
Adjusted Score: 109377%
Critics Consensus: Enlivened by writer-director James Gunn's singularly skewed vision, The Suicide Squad marks a funny, fast-paced rebound that plays to the source material's violent, anarchic strengths.
Synopsis: Welcome to hell--a.k.a. Belle Reve, the prison with the highest mortality rate in the US of A. Where the worst... [More]
Directed By: James Gunn

#3
#3
Adjusted Score: 109713%
Critics Consensus: A nerve-wracking continuation of its predecessor, A Quiet Place Part II expands the terrifying world of the franchise without losing track of its heart.
Synopsis: Following the deadly events at home, the Abbott family must now face the terrors of the outside world as they... [More]
Directed By: John Krasinski

#2
Adjusted Score: 106723%
Critics Consensus: Eye-catching and energetic, The Mitchells vs. the Machines delivers a funny, feel-good story that the whole family can enjoy.
Synopsis: Young Katie Mitchell embarks on a road trip with her proud parents, younger brother and beloved dog to start her... [More]
Directed By: Mike Rianda

#1
Adjusted Score: 93219%
Critics Consensus: No consensus yet.
Synopsis: The fourth and final instalment of the Rebuild of Evangelion. Misato and her anti-Nerv group Wille arrive in Paris, a... [More]

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