If you ever wished to travel through dimensions different from yours, go back in time, or simply have a break from your daily routine, sci-fi television would be your perfect getaway. The genre is a fun park for brain-bending ideas, thrilling mysteries, and daring storytelling that questions our very concept of reality. One can only imagine the existence of a sci-fi show that can impress you with one or another of the mentioned things, like space odysseys, dystopian futures, or even animation of the dream world, not to mention that these characters are also time-traveling and are detectives. Here are the 15 greatest sci-fi shows that are now available online. Each of them is like a peek through a different, weird, and unforgettable world.
1. 3 Body Problem
When scientists start dying off in strange ways and the laws of physics begin to break down, there’s no doubt that something is seriously going on. Based on Liu Cixin’s award-winning novel The Three-Body Problem, this sprawling Netflix show combines brainy sci-fi with high-stakes drama. Featuring an all-star cast that includes Benedict Wong, Jess Hong, and Jovan Adepo, the series tracks a team of unlikely allies—and one tough-as-nails detective—banded together in an attempt to prevent an existential threat to humanity itself.
2. The Umbrella Academy
Superhero dysfunction has never been so much fun. Based on the comic by Gerard Way and Gabriel Bá, this fashionable series follows a dysfunctional family of super-powered siblings as they reunite after their adoptive father’s death under mysterious circumstances. Complete with time travel, apocalypses, and family tension, each episode of The Umbrella Academy is a heart, humor, and chaos delivery system.
3. Bodies
Crime drama collides with time-travel mystery in Bodies, a suspenseful series in which four detectives from four time periods all find the same body in the same place. As they dig in, a deeper cover-up is revealed, connecting their timelines in surprising ways. Adapted from Si Spencer’s graphic novel, this genre-bending series is half detective tale, half sci-fi puzzle box.
4. Stranger Things
A nostalgic ode to ’80s pop culture with a paranormal spin, Stranger Things is an instant sci-fi classic. The show follows a group of small-town children battling supernatural evil—telekinetic girls and secret government facilities, all the way to the monstrous kingdom of the Upside Down. With its blend of nostalgia, suspense, and character development, the show is one of Netflix’s most popular shows. The last season debuts on November 26.
5. Black Mirror
Every episode of Black Mirror is an independent look into a dark future—the kind where technology develops quicker than ethics. Creator Charlie Brooker provides scathing commentary on surveillance, social media, artificial intelligence, and much more, and this anthology series is both intellectually stimulating and deeply uncomfortable. If you’re a fan of edgy speculative fiction, this one’s a must-watch.
6. Maniac
Emma Stone and Jonah Hill star in this hallucinatory, genre-bending miniseries about two strangers who sign up for a strange drug trial. Rather than curing their wounds, the trial deposits them in a dreamlike sequence of parallel worlds—from noir-inspired detective stories to fantasy sagas. Visually striking and emotionally charged, Maniac is a head trip that’s as surprising as it is affectionate.
7. Dark
One of the greatest sci-fi shows ever produced, Dark is a German-language thriller that opens on a missing child and unfolds as a multigenerational epic of time travel, paradox, and existential horror. With its layered story and eerie atmosphere, this slow-burning mystery pays off for close viewers with some of the best sci-fi storytelling in years.
8. Alice in Borderland
Awakening in a hauntingly deserted Tokyo, gamer Arisu is compelled into life-or-death survival games with other imprisoned players. This Japanese series combines psychological tension with high-octane action and complex character development. As Arisu and fellow survivor Usagi try to find answers, they reveal a twisted universe that’s as exciting as it is heartbreaking.
9. Lost in Space
In this polished re-imagining of the 1960s original, the Robinson family crash-lands on a remote planet during an attempt to colonize the cosmos in 2046. Every episode contains a balance of survival against the elements, sci-fi awe, and emotional family drama. With cinematic production values and an emotional heart, Lost in Space provides classic adventure and contemporary storytelling.
10. Love, Death & Robots
This animated anthology show is a feast of tones, styles, and ideas. From photorealistic horror to whimsical satire, the short stories include everything from love, death, and—yes—robots. Curated by Tim Miller and executive produced by David Fincher, this Emmy-winning series is great for quick, mind-bending sci-fi fixes.
11. Welcome to Eden
What begins as an opulent party on a far-flung island quickly descends into something far more sinister in Welcome to Eden. This Spanish thriller about a cohort of influencers drawn to an ultra-exclusive bash, which fast becomes a sci-fi nightmare of cults, spying, and undercover motives, is a chic, habit-forming ride with turns every five seconds.
12. Supergirl
For fans of their sci-fi on the more optimistic and sentimental side, Supergirl fits the bill. Tracking the path of Kara Zor-El—Superman’s cousin—in a quest to balance life as a journalist and a superhero, this show weaves intergalactic danger with down-to-earth emotional exploration. It’s an optimistic interpretation of the genre, with empowering ideals and action-packed stories to boot.
13. The Rain
When a lethal virus is unleashed by rain, Scandinavia is devastated. Two children explore a desolate, contaminated world for safety, meeting other survivors and learning what happened in the outbreak. The Rain is a chilling, post-apocalyptic thriller in which each raindrop is potentially fatal, and sunshine is as elusive as hope.
14. Resident Alien
Alan Tudyk adds humor and emotion to this quirky science fiction comedy. He stars as the alien who has come to Earth to destroy it, crash-lands in a tiny Colorado town, and assumes the identity of the town doctor. As he stumbles his way through human existence, he begins to question his mission. Resident Alien is sharp-tongued, hilarious, and unexpectedly moving—science fiction with a twist.
15. Lost
The pilot that started a million fan theories, Lost begins with an airplane crash and already descends into a rich world of mystery, mythology, and science fiction. With smoke monsters, time travel, and mysterious island mysteries, the show had viewers hooked for six seasons and is still the benchmark for sci-fi TV. Love it or loathe it, Lost changed television.
Whatever your mood is, philosophical navel-gazing, action-packed thrills, or heart-tugging drama—there’s something in today’s sci-fi for you. These 15 series are just a sampling of the genre’s limitless imagination—and all you’ll need to investigate them is a comfortable seat and a good Wi-Fi connection.