The Best 10 Sci-Fi and Fantastical Series of 2025

What could you accomplish with unlimited control? That's a central inquiry explored by all greatest science fiction and fantasy tales. Imagine if you possessed superhuman abilities? Or stumbled upon a revolutionary substance? Or if every other person was wholly committed to your happiness? Could you wield such power for the greater good, or would you give in to your own darker instincts?

These television series listed herein each confront that very dilemma in unique ways (aside from a single key exception). Detailed below is our countdown of the ten best seasons of science fiction & fantastical television from the past year.

10. Spider-Man: Your Friendly Neighborhood

A fresh take on Spider-Man
Illustration: Marvel

Even after over 60 years of history, Spider-Man continues to be reimagined by new talent. This series offers a novel look at the hero's early days, cleverly merging classic source material elements with influences from other adaptations to craft something that feels both fresh and profoundly compelling.

Instead of operating alone or having Tony Stark as a mentor, this iteration of Peter Parker develops a complex partnership with the future Green Goblin, who here is merely the head of Oscorp. Through their interactions, Peter grows into a true hero, internalizing the signature lesson of power and great responsibility.

9. Hazbin Hotel Season 2

Musical chaos in the underworld
IMAGE: Animation Studio

Showrunner Vivienne Medrano's audacious adult musical-comedy series, which originated as a fan-funded short, truly hit its stride in its sophomore season. Following the game-changing events of season 1, the story expands significantly, centering on the scheming media overlord Vox as he takes control of the situation, igniting a series of ever-more explosive conflicts that naturally culminate in elaborate musical numbers.

While it might not have a single viral song on the level of season one's "Loser, Baby," this is due to everything in this season being increasingly ambitious. The fight sequences, personal development, and above all the score and songs are collectively elevated. The story advances the overarching plot dramatically while providing no shortage of weird, unhinged, and simply fun fantasy.

8. Daredevil: Born Again

Matt Murdock in action
Image: Marvel Studios

Following the legendary Netflix series, this series had immense expectations. Despite well-documented production issues, the resulting show proves to be worthy of the wait. The plot centers on Matt Murdock once his secret identity as Daredevil is exposed, making him vulnerable to enemies both history and present in a refreshed version of his familiar setting.

The premiere is explosive, evoking the intense feeling fans loved from the prior incarnation. Although the subsequent chapters venture into some new narrative ground, the first season finishes on a strong note, leaving viewers keenly awaiting a second installment.

7. Common Side Effects

Stylized figures in a tense moment
Visual: Network

A unexpected 2025 gem, this show is essentially a crime saga filtered through the humor of a suburban satire. Helmed by Joe Bennett and writer Steve Hely, the series follows the saga of a mild-mannered fungi expert who finds a curative fungus and quickly finds himself pursued by forces including unscrupulous pharmaceutical CEOs to federal authorities.

Far from being a parody, the show plays out with the serious atmosphere of a 1970s paranoia thriller. Enhanced by hallucinogenic animation and an unnerving musical soundtrack, the story delves into bigger mysteries about the substance's full effects. It's a smart, visually striking, and completely compelling first season.

6. Fallout Season 2

Wasteland vista from Fallout
Screenshot: Streaming Service

This acclaimed adaptation based on the iconic gaming series came back with a new season of stories that expanded its epic lore and expanded its nuclear wasteland setting. Although it ventures in the direction of the fan-favorite location of New Vegas, the season is not a direct adaptation of that title; instead, it continues to examine themes of control and freedom.

It expertly juggles several narrative threads and perspectives, from Lucy's quest for answers to a knight's reckoning with the ideology of the Brotherhood of Steel. The outcome is a deeply detailed and utterly absorbing chapter to the ever-growing Fallout mythology.

5. Invincible Season 3

Invincible in a brutal battle
Art: Prime Video

This visceral and heartfelt adult animation series continues its winning momentum in season 3. Mark Grayson faces tremendous challenges on every fronts: preparing for a looming Viltrumite invasion, mentoring his powered brother, and clashing with the shadowy Global Defense Agency. The season once again features some of the most brutally brutal action sequences the series has yet produced.

The protagonist's physical and emotional limits are constantly pushed. He must grapple with foes more powerful than he is, the consequences of his battles, and the moral burden of his choices. Standout storylines for supporting cast members such as Cecil Stedman and Rex Splode round out a superb installment.

4. Peacemaker Season 2

Peacemaker in gear
Image: Streamer

James Gunn's offbeat superhero series came back with increased significance within the new DC canon, and it delivers on that count. While it effectively lays foundations for upcoming cinematic universe projects, it also presents a powerful and focused {

Jessica Andrade
Jessica Andrade

A seasoned gaming analyst with over a decade of experience in online casino strategies and player psychology.