Top 20 Sci-Fi TV Shows 2026

The best sci-fi TV shows 2026 – ranked by the community. Science fiction series ask one central question: what if? What if AI develops consciousness, time travel has real consequences or humanity inhabits other planets? The highest-rated series in this ranking use those premises as a lens for social and ethical questions – not just as a backdrop for special effects.

How are the series charts created?

Rankings are based on real user ratings. The more votes a show receives, the more stable its chart position. When you rate shows yourself, your personal recommendations improve too.

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Series Charts: Top 20

5. Under the Dome

★★★★★★☆☆☆☆ (6/10 stars)
Available on: Paramount+ (May change. Report errors for Under the Dome)

An invisible and mysterious force field descends upon a small fictional town in the United States, trapping residents inside, cut off from the rest of civilization. The trapped townsfolk must discover the secrets and purpose of the "dome" and its origins, while coming to learn more than they ever kn... more about Under the Dome

14. Agents of S.H.I.E.L.D.

★★★★★★★★☆☆ (8/10 stars)

Now that the existence of super heroes and aliens has become public knowledge, the world is trying to come to grips with this new reality. Agent Phil Coulson is back in action and now has his eye on a mysterious group called The Rising Tide. In order to track this unknown enemy, he has assembled a s... more about Agents of S.H.I.E.L.D.

19. Stargate SG-1

★★★★★★★★☆☆ (8/10 stars)
Available on: Netflix Sky/WOW (May change. Report errors for Stargate SG-1)

This sequel to the 1994 movie Stargate chronicles the further adventures of SGC (Stargate Command). It turned out that the Goa'uld Ra was only one of many alien System Lords who used the Stargates to conquer much of the universe. When Earth uncovers a working cartouche to decipher the coding system ... more about Stargate SG-1

20. Warehouse 13

★★★★★★★☆☆☆ (7/10 stars)
Available on: Prime Video (May change. Report errors for Warehouse 13)

After saving the life of an international diplomat in Washington D.C., a pair of U.S. Secret Service agents are whisked away to a covert location in South Dakota that houses supernatural objects that the U.S. Government has collected over the centuries. Their new assignment: retrieve some of the mis... more about Warehouse 13

Why these charts are worth it

Sci-Fi TV shows are the genre most driven by a single core question: what if? What if AI becomes conscious? What if we colonise other planets? What if time travel is possible but comes with unexpected costs? The best science fiction uses these premises not as an end in themselves, but as a lens through which current social, ethical or technological questions can be examined differently.

This ranking covers sci-fi series across a broad spectrum: hard science fiction with high technical ambition, space opera with epic interstellar scenarios, dystopian series, time travel stories and near-future concepts that are only a small step removed from the present. Series that deliver on both dimensions – compelling story and substantive ideas – consistently rank at the top of the community charts. Use the streaming filter to see immediately where each series is currently available.

Discover related charts

If sci-fi TV shows are your thing, you might also enjoy fantasy or thriller series for similarly imaginative or tense storytelling.

FAQ

What are the best Sci-Fi TV Shows?

The top Sci-Fi TV Shows are ranked by real community votes. The more ratings a show has, the more stable its position.

Where can I stream Sci-Fi TV Shows?

Use the streaming filter to see which Sci-Fi TV Shows are available on Netflix, Prime Video, Disney+, HBO Max and more.

How are the Sci-Fi TV Shows rankings created?

Rankings are based on real user ratings. The more votes a series receives, the more stable its chart position.

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