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10 great free sci-fi movies you should stream right now

The Starship Enterprise in 2009 Star Trek
Paramount Pictures

Streaming prices continue to increase, but luckily for viewers, there’s a growing number of free streaming services out there. From Amazon Freevee to Tubi, Pluto TV, and even no-cost options on Peacock, there’s a ton of free content to be enjoyed. In recent years, the free content has also gotten a lot better now that major companies are investing in free streaming services.

This is especially great news for sci-fi fans since lots of fantastic new and classic sci-fi films have made their way to these free streamers. Whether you want a big box office hit, an award-winning indie film, or a legendary cult classic, you can find them for free. Here are 10 of the best sci-fi movies you can stream right now without paying a dime.

We also have guides to the best movies on Netflix, the best movies on Hulu, the best movies on Amazon Prime Video, the best movies on Maxand the best movies on Disney+.

Monsters (2010)

A woman wears a gasmask in the movie Monsters
Protagonist Pictures

Monsters premiered at the 2010 SXSW festival to rave reviews. In the movie, alien creatures begin taking over Mexico. The film follows an American man and woman who try to escape the country before the U.S. has time to fully construct a massive wall to try and stop the creatures and quarantine Mexico. Beneath the madness, the movie becomes a weird love story, which helps elevate it into something much larger than just a generic monster flick.

Monsters became a massive hit in the festival circuit and even earned a BAFTA nomination for then-first-time director Gareth Edwards, who later went on to direct box office hits like 2014’s Godzilla and 2016’s Rogue One: A Star Wars Story.

Watch Monsters for free on Peacock.

Super 8 (2011)

The iconic lens flare in Super 8 movie
Paramount Pictures

Super 8 is J.J. Abrams’s stylized and somewhat polarizing 2011 sci-fi epic. Set in Ohio during the summer of 1979, the film follows a group of kids who encounter a bizarre accident one night while filming a homemade movie on a Super 8 camera. Soon, strange events happen around town and a mysterious creature lurks in the darkness.

The movie was both praised and criticized for its style – most notably its liberal use of lens flare, which divided viewers, with some thinking it was a great stylistic choice and others finding it distracting. In 2011, IndieWire even titled an article about the then-upcoming film, “New 30 Second ‘Super 8’ Clip Has At Least 30 Lens Flares In It.”

Ultimately, Super 8 became a hit, with many loving its retro vibes, its fun group of kids, and its great mystery. Two of its biggest fans included the Duffer Brothers, and the similarities between Stranger Things and Super 8 are pretty obvious. “I loved Super 8, but then it was just gone,” the brothers said on the Happy Sad Confused podcast in 2022. “No one else did it. And I do think there was an appetite, or that’s what I hoped, for this type of storytelling.” With the success of Stranger Things, it seems the Duffer Brothers were absolutely right about there being an appetite.

Watch Super 8 for free on Freevee.

Star Trek (2009)

Chris Pine stars as Captain Kirk in Star Trek
Paramount Pictures

Another Abrams film that’s streaming for free right now is his 2009 remake of Star Trek. Abrams’ remake really helped bring Star Trek into the modern era and breathed new life into the aging franchise by introducing it to a whole new generation of fans. Chris Pine took on the role of Captain Kirk, while Zoe Saldana played Uhura and Zachary Quinto portrayed Spock.

In the film, the young, rebellious Kirk and his crew must fight to save their lives and the entire federation against a vengeful Romulan attack. The movie is a great entryway for viewers who don’t know anything about Star Trek or who see the franchise and its fandom as way too complex and unwelcoming.

The 2009 film has a younger, more action-packed feel, making it great for hardcore fans and newcomers alike. Both of the film’s sequels, Into Darkness and Beyond, are also currently streaming for free.

Watch Star Trek for free on Pluto TV.

The Invisible Man (2020)

The Invisible Man spies on his ex girlfriend
Universal Pictures

In 2020, H.G. Wells’ classic story The Invisible Man was remade for a new generation. The film stars Elisabeth Moss as Cecilia Kass, a woman in an abusive relationship with a man who (unfortunately for her) happens to be a world-renowned optical engineer. She escapes from him, but instead of finding peace and freedom, she senses a lurking presence that’s out to torment her. Could it somehow be her obsessive boyfriend, or is she just breaking under the pressure of trauma?

The Invisible Man was a hit with critics and audiences, and despite premiering just two weeks before the COVID pandemic caused theaters around the globe to shut their doors, the movie managed to gross an impressive $144 million.

Watch The Invisible Man for free on Freevee.

The Void (2016)

The cult opens a portal in The Void 2016
Cave Painting Pictures

Lovecraft fans will love 2016’s The Void. In the movie, a group of strangers find themselves at a mostly-abandoned hospital that’s surrounded by robed cultists. Things get even worse when people start turning into monsters after the cult leader reveals he’s found a way to make deals with otherworldly entities. Like all Lovecraftian horror films, The Void has an emphasis on cosmic terrors and lots of tentacles, pus, slime, and morbid creatures.

The Void received mostly positive reviews, but it did get some negative criticism for its plot — which leaves a lot unexplained. But for fans of the body-horror genre, or anyone who enjoys Lovecraft’s famous style, the movie won’t disappoint thanks to its great monsters.

Watch The Void on Tubi.

Evolution (2001)

The cast of Evolution stare up at a giant alien creature
Columbia Pictures

Evolution is a wacky and fun sci-fi comedy about a small Arizona town that’s changed forever when a meteor crashes into a city park, revealing a previously unknown cave system underneath. The meteor also has some extraterrestrial goo in it that evolves millions of times faster than life on Earth. Within a week, the cave system becomes an alien world filled with creatures that rapidly evolve, eventually producing human-size primates and other fun monsters. How can a ragtag team of misfits stop the alien creatures before they overtake the planet? Head & Shoulders shampoo, obviously.

The movie starred David Duchovny, who was fresh off The X-Files at the time, as well as Julianne Moore, Orlando Jones, and Sean William Scott (remember him?). While it’s certainly not the smartest or the most thought-provoking sci-fi movie ever, Evolution is an enjoyable, easy watch.

Watch Evolution on Pluto TV.

The Mist (2007)

A woman begs for help in The Mist
Dimension Films

In this modern Stephen King classic, a small town is suddenly consumed by a strange mist. As police cars rush down the street and alarms go off around the town, a group of residents hunker down inside a crowded grocery store. But things get even worse when they learn that giant monsters are lurking within the mist.

As the situation, becomes more dire the group struggles with conflicts. They wonder if they should stay or run, how long they might be trapped for, and how to ration supplies. But The Mist is most memorable for its traumatic and shocking finale that is both heartbreaking and brilliant. If you’ve never seen the movie, the ending is a giant gut punch that will sit with you long after the film ends.

Watch The Mist for free on Freevee.

Europa Report (2013)

The space crew in Europa Report
Wayfare Entertainment

In the indie sci-fi film Europa Report, a group of astronauts head to Jupiter’s moon to search for signs of extraterrestrial life. Before even arriving at Europa, problems arise that put the astronauts’ lives at risk, and once they land on the moon, the situation becomes even more dire.

Europa Report was praised by critics, and though it had a very limited theatrical release, it performed well on DVD and earned a cult following. The movie is noted for its gritty, realistic, and often brutal depiction of space exploration. Variety praised the film’s realistic vision, saying, “Without contriving any sort of overt threat, the film conveys the terror of deep space as a still, silent void, indifferent to human suffering or survival…” Instead of going for an alien-heavy splatterfest, the movie attempted to stay grounded in as much reality as possible, showing a near-future with technology similar to our own today.

Watch Europa Report for free on Peacock 

Cube (1997)

A victim is trapped in a cube in Cube
Cube Libre

In Cube, a group of strangers wake up in a giant cube made of smaller, ever-shifting cubes. The movie never fully explains who made the cube or why the group has been trapped in it. Instead, it focuses on the desperation and paranoia that arises as they try to escape. The group is also forced to deal with another dilemma: some of the cubes are rigged with traps, and the only way to know which rooms are trapped is by solving a secret code within each cube’s room numbers.

Cube was praised by critics and even won Best Canadian Feature Film at its Toronto Film Festival premiere. Many have also noted its similarities to Saw, calling it a spiritual precursor to that movie thanks to its gritty, confined spaces and morbid traps. Cube‘s popularity has also led to two sequels and a 2021 Japanese remake. In 2022, Bloody Disgusting reported that Lionsgate was also in the early stages of working on an American remake.

Watch Cube for free on Tubi.

Stargate (1994)

The stargate is uncovered in Egypt
Canal+

If you’re a sci-fi fan, you probably already know about the Stargate franchise. In the original film, archeologists uncover a mysterious circular structure in Egypt that’s revealed to be a portal to other worlds. After activating the stargate, a team travels through a wormhole and finds themselves on an alien planet with structures that resemble those found in ancient Egypt. They also discover the Egyptian god Ra is actually an alien with malicious intent.

Stargate became an unexpected hit, grossing more than $71 million in America and over $196 million globally. It also launched one of the most high-profile fandoms in sci-fi history and spawned the insanely popular spinoff series Stargate SG-1. If you love sci-fi, Stargate is a must-watch.

Watch Stargate for free on The Roku Channel.

Keith Langston
Keith Langston has been obsessed with entertainment ever since he was a kid. He fully believes The Faculty and Deep Blue Sea…
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