8 Most Perfect Sci-Fi Shows of the Last 25 Years, Ranked

Image via Apple TV Published Sep 6, 2026, 11:22 PM EDT Diego Pineda has been a devout storyteller his whole life. He has self-published a fantasy novel and a book of short stories, and is actively working on publishing his second novel. A lifelong fan of watching movies and talking about them endlessly, he writes reviews and analyses on his Instagram page dedicated to cinema, and occasionally on his blog. His favorite filmmakers are Andrei Tarkovsky and Charlie Chaplin. He loves modern Mexican cinema and thinks it's tragically underappreciated. Other interests of Diego's include reading, gaming, roller coasters, writing reviews on his Letterboxd account (username: DPP_reviews), and going down rabbit holes of whatever topic he's interested in at any given point. Sign in to your Collider account Over the course of the last quarter of a century, science fiction fans have been treated to TV shows that have proven beyond a shadow of a doubt that sci-fi television is alive and well in the 21st century. Whether these shows are family-friendly or fully for adults, whether they're cartoons or live-action gems, and whether they revolutionized the genre or simply added a new masterful entry to its canon, they're all essential viewing for sci-fi fans. But while it's rare enough to encounter a sci-fi show from the past 25 years that's truly exceptional, to find one that's downright perfect is all the more of a precious rarity. There are some particular shows, however, that stand out as the closest that small-screen science fiction has come to perfection throughout the 21st century. From animated shows like The Venture Bros. to live-action genre-definers like Firefly, these incredible series are virtually devoid of any significant flaws. In order to qualify for this list, the show's pilot has to have aired sometime during the last 25 years. 8 'The Venture Bros.' (2003–2018) Image via Adult Swim Launched in late 2001, Adult Swim has been providing several of the greatest animated series for adults throughout the last 25 years. Case in point: The Venture Bros., one of the breakout hits that helped put their signature absurdist sense of humor on the map. This legendary sitcom is science fantasy at its best, constantly blending genres in its effort to parody classic action-adventure cartoons from the '60s. Venture Bros. is far and away one of the best Adult Swim shows of all time. Though its ratings were never stellar, it was the type of show that lent itself perfectly to a cult following: an entirely uncompromised creative vision, deeply layered lore and world-building, and a love letter to nerd culture as a whole. From the hilarious comedy to the irresistibly fun and thrilling action scenes, there's pretty much nothing to complain about when watching Venture Bros. 7 'Arcane' (2021–2024) Image via Netflix Who could have possibly predicted that it would be League of Legends, of all games, that would go on to inspire one of the most acclaimed animated TV shows of the last 25 years? Not only that: Arcane may well also be one of the most universally beloved sci-fi and fantasy shows of the 2020s so far, and in a decade that has thus far been full of incredible genre series, that's no small compliment at all. It is, indeed, one of the most perfect fantasy shows shorter than five seasons, blending steampunk elements with mystical magic in a way that fans of either genre should find difficult to resist. The animation is some of the most stunning that the small screen has ever seen, the soundtrack is absolutely legendary, the many downright-badass action sequences are perfectly balanced with deeply nuanced character development, and the show as a whole is as easy to love as it is impossible to hate. 6 'Severance' (2022–Present) Image via Apple TV Apple TV joined the streaming game relatively late into the journey, but they have already had several chances to prove that they're as capable of making bangers as any other streaming platform. Their sci-fi show output in particular stands out, all thanks to masterpieces of the caliber of Severance, which is easily one of the best thriller TV shows released since 2000. It's hard to figure out where one can even begin singing Severance's praises. The cast, for one, is absolutely exceptional, each actor delivering their A-game in ways that have been nothing short of career-defining so far. They play some of the most compelling and mysterious characters of any "mystery box" sci-fi show in history, and it's precisely the compelling layers of those characters and the fascinating mysteries surrounding them that serve as the anchor that makes Severance so difficult to stop watching. 5 'The Expanse' (2015–2022) Image via SYFY Generally praised as one of the most scientifically accurate sci-fi shows of all time, The Expanse is the adaptation of the masterful book series of the same name by James S. A. Corey (the pen name of Daniel Abraham and Ty Franck). Though the show was canceled by Syfy after only three seasons, it was quickly picked back up by Prime Video for another three seasons. Thus, that leaves us with a show that has a strong argument for being the best six-season sci-fi show in history. At the very least, The Expanse is one of the best sci-fi shows since 1990, a genre-blending neo-noir space opera that's unlike anything else the sci-fi genre has seen throughout the last 25 years. Some find its first season a bit too slow-burning, but after things pick up steam, The Expanse never drops in quality. Its seasons keep getting better, more creative, and more exciting as they go on, making it unsurprising that many would consider this one of the biggest sci-fi must-see shows of the 2010s and 2020s. Collider Exclusive · Sci-Fi Personality Quiz Which Sci-Fi Hero Are You Most Like? Paul Atreides · Captain Kirk · Princess Leia · Ellen Ripley · Max Rockatansky Five iconic heroes. Five completely different ways of facing an impossible universe. One of them shares your instincts, your values, and your particular way of refusing to back down. Eight questions will tell you which one. 🏜️Paul Atreides 🖖Capt. Kirk ✊Princess Leia 🔦Ellen Ripley 🔥Max Rockatansky FIND YOUR HERO → 01 How do you lead when the stakes couldn't be higher? The way you lead under pressure is the most honest thing about you. AI absorb everything — every variable, every pattern — and move only when I know the path forward. BI read the room, make the call, and own the consequences. Hesitation costs more than mistakes. CI rally people. A cause needs a voice, and I refuse to let fear be louder than conviction. DI assess the threat, establish what needs doing, and get it done without waiting for permission. EI don't lead. I act. Others can follow or not — I'm already moving. NEXT QUESTION → 02 What is your greatest strength in a crisis? The quality that keeps you alive when everything else fails. APrescience — the ability to see further ahead than anyone else and plan accordingly. BImprovisation — I'm at my best when the plan falls apart and I have to invent a new one. CConviction — I know what I'm fighting for, and that certainty doesn't waver under fire. DComposure — I stay functional when everyone around me is falling apart. Panic is a luxury. EEndurance — I outlast things. I take the hit and keep moving long after others have stopped. NEXT QUESTION → 03 What is the thing you'd sacrifice everything else for? Your deepest motivation is your truest compass. AThe survival and dignity of my people — even if I have to become something frightening to ensure it. BThe safety of my crew — every single one of them. No one gets left behind. CFreedom — for my people, for every world still crushed under the weight of an empire. DThe truth — what actually happened, what's actually out there, whether anyone believes me or not. EThe one person — or the one memory — that still makes any of this worth surviving for. NEXT QUESTION → 04 How do you relate to the people around you? Who you are to others under pressure is who you really are. AWith intensity and distance — I care deeply, but the weight I carry makes closeness complicated. BWith warmth and irreverence — I take the mission seriously, not myself. CWith directness and trust — I say what I mean, and I expect the people I work with to rise to it. DWith professional care but clear limits — I'll protect you, but I won't pretend we're family. EWith wariness that slowly becomes loyalty — I don't trust easily, but when I do, it holds. NEXT QUESTION → 05 You're facing a threat that no one else believes is real. What do you do? How you respond when you're the only one who sees it defines everything. APrepare in silence. If they won't listen, I'll be ready when they finally have to. BKeep pushing until someone listens — and if no one does, handle it myself. CBuild the case, find the allies, and make the threat impossible to ignore. DDocument everything. The truth matters even if no one believes it yet. EStop trying to convince anyone. Survive it. That's the only argument that counts. NEXT QUESTION → 06 What has your heroism cost you personally? Every hero pays. The question is what — and whether they'd pay it again. AMy innocence — I've seen what I'm capable of, and I can't unsee it. BPeople I loved — the command chair has a view, but it's a lonely one. CA normal life — I gave up everything ordinary the moment I chose the cause. DMy sense of safety — I know exactly what's out there now, and I can't pretend otherwise. EAlmost everything — and I'm still not sure what I'm carrying it all for. But I keep going. NEXT QUESTION → 07 How do you feel about the rules of the world you're in? Every hero has a relationship with the system. What's yours? AI understand them deeply — and I know exactly which ones must be broken, and why. BI respect the spirit of them and bend the letter when the situation demands it. CThe system is the problem. I'm not here to work within it — I'm here to dismantle it. DI follow protocol until protocol stops being useful. Then I make the call myself. EThe rules collapsed a long time ago. What's left is instinct, and mine are reliable. NEXT QUESTION → 08 When everything is on the line, what keeps you going? The answer is the most honest thing about you. ADestiny — or something that feels so much like it that the difference no longer matters. BThe people on my ship — their faces, their trust, the fact that they're counting on me. CThe belief that what we're fighting for is worth every sacrifice, including this one. DSheer refusal to let it win — whatever it is. I don't stop. That's just who I am. EI'm not sure anymore. But the road is still there, and I'm still on it. REVEAL MY HERO → Your Hero Has Been Identified Your Sci-Fi Hero Is…Your answers point to the iconic sci-fi hero who shares your instincts, your values, and your particular way of facing the impossible. Paul AtreidesYou carry a weight most people would crumble under — the knowledge of what you're capable of, and the burden of what you might have to become. You see further ahead than others and you plan accordingly, even when the vision frightens you. You are driven by loyalty to your people and a sense of destiny you didn't ask for but can't escape. Paul Atreides is not simply a hero — he is someone who understands the cost of power and chooses to bear it anyway. That gravity, that willingness to carry what others won't, is exactly you. Captain KirkYou lead with instinct, warmth, and an absolute refusal to accept a no-win scenario — because you've always believed there's a third option nobody else has thought of yet. You take the mission seriously without ever taking yourself too seriously. Your crew would follow you anywhere, not because you demand it, but because you've earned it. Kirk's genius isn't tactical — it's human. He reads people, bends rules with purpose, and wills outcomes into existence through sheer conviction. That combination of warmth, audacity, and relentless optimism is unmistakably yours. Princess LeiaYou are the kind of person who holds the line when everyone else is losing faith — not because you're fearless, but because giving up simply isn't something you're capable of. You lead through conviction. Your voice carries because your belief is unshakeable. You gave up everything ordinary the moment you chose the cause, and you've never looked back. Leia is not a supporting character in her own story — she is the moral centre of the entire rebellion. That same fierce, principled, unbreakable core is what defines you. Ellen RipleyYou are not reckless, not grandiose, and not particularly interested in being anyone's hero — you just refuse to stop when it matters. You see threats clearly, you document the truth even when no one listens, and when the time comes you handle it yourself. Ripley's heroism is earned, not performed. She doesn't have a speech — she has a flamethrower and a plan. You share her composure under the worst possible pressure, and her refusal to pretend the monster isn't there. When it counts, you don't flinch. That's everything. Max RockatanskyYou have been through fire that would break most people — and what came out the other side is something the world underestimates at its peril. You don't ask for help, don't need validation, and don't wait for anyone to tell you the rules no longer apply. Your loyalty, when it finally arrives, is absolute — but it's earned in silence and tested in action, not in words. Max is not a nihilist. He is someone who lost everything and found, against his will, that he still has something worth protecting. That bruised, stubborn, ultimately human core is exactly yours. ↻ RETAKE THE QUIZ Hiromu Arakawa's manga series Fullmetal Alchemist was still ongoing by the time the anime series of the same name started airing; so, even though it's still a great show and essential viewing for modern anime fans, it hasn't aged the best. On the other hand, Fullmetal Alchemist: Brotherhood was designed to adapt the manga's entire arc, and for that reason, it has only continued to age like fine wine over the course of the 16 years since its conclusion. It's one of the most universally beloved anime series of all time, as perfectly proven by the fact that it's the highest-rated anime series and sci-fi series of all time on IMDb. It really is just that good, a faultless and fluffless masterpiece that even those who have never watched an anime show should consider checking out, as long as perfect sci-fi television is their thing. Airtight in its pacing and emotionally resonant to its core, it's one of the most fascinating stories that animation has told on the small screen since the start of the 21st century. 3 'Andor' (2022–2025) Image via Disney+ When it made the jump to television in the '80s, the Star Wars franchise kept its small-screen output exclusively limited to animation, and it wouldn't be until 2019 that they would start to make live-action shows. Only three years later, the world was treated to the first few episodes of what would end up being praised as the best piece of mainline Star Wars media since the end of the original trilogy: Disney+'s Andor. A prequel show to a prequel spin-off movie may not sound like the kind of series that could be so successful, but that's precisely what makes Andor so special. It's one of the most perfect sci-fi shows shorter than five seasons, a deeply thrilling and perfectly-written critique of authoritarian abuse and a celebration of rebellion in the face of such oppression. It's timely, it's technically masterful, it's full of great performances, and it's a gripping return to Star Wars' thematic roots. 2 'Dark' (2017–2020) Image via Netflix Dark, Netflix's first-ever German-language series, is definitely not a show made for those who prefer science fiction that allows them to turn their brains off and have a few hours of good fun. As engrossing and undeniably entertaining as this time travel and multiverse sci-fi masterpiece is, it's also a deeply thought-provoking show, one so intellectually challenging that there's no way of understanding and appreciating it without offering it one's full attention. But that attention is never too much to ask, because Dark—one of those rare sci-fi shows that get time travel right—earns it so naturally with its meticulously-plotted narrative that the mental effort of watching it is always rewarding, never overwhelming. From its writing to its visuals to its performances, pretty much everything about Dark is absolutely perfect from pilot to series finale. 1 'Firefly' (2002–2003) Image via FOX There are many instances of great sci-fi shows that were unfortunately canceled after only one season, well before they could prove their full value and artistic vision—but none of those cases even comes close to being as infamous as that of Joss Whedon's Firefly. Easily one of the biggest cult classics in the 21st-century history of science fiction television, Firefly is one of the best single-season action TV shows of all time, a space Western that anyone and everyone who loves the subgenre needs to watch at least once in their lives. A whopping 23 years after its untimely cancellation and with an animated continuation currently in production, now's about as perfect a time as any to watch one of the most perfect sci-fi shows the world has ever seen. Firefly is stylish, exciting, emotional, and incredibly fun throughout each of its endlessly rewatchable episodes. The cast ensemble is legendary, the characters are all riveting, and the story is so compelling that it's impossible to ever get tired of this truly flawless gem of a sci-fi show. Firefly Release Date 2002 - 2003-00-00 Network FOX Cast Gina Torres Zoë Washburne Showrunner Joss Whedon Directors Allan Kroeker, David Solomon, James A. Contner, Marita Grabiak, Michael Grossman, Tim Minear, Vern Gillum Writers Cheryl Cain, Drew Z. Greenberg, Jane Espenson Main Genre Sci-Fi Seasons 1 Producers Ben Edlund, Gareth Davies Creator(s) Joss Whedon Story By Joss Whedon Streaming Service(s) Hulu Executive Producer(s) Joss Whedon, Tim Minear