7 Brilliant Animated Sci-Fi Gems You Probably Forgot Existed

Animated sci-fi has been doing the work for decades, quietly dropping killer ideas while live-action hogs the spotlight. If you only know the big-brand stuff like the Star Trek and Star Wars cartoons, there are plenty of sharp, weird, and unfairly forgotten series worth a look. Here are seven that still hit, even if the algorithms buried them.

1. Exosquad (1993)

   On the surface it looked like a toyline-friendly Saturday morning mech show. Underneath, it was a surprisingly heavy war story about humanity nearly wiped out and enslaved by a species we created. Across two seasons and 52 episodes, this Universal Cartoon Studios gem actually finishes its story — a rarity — and it does it with adult-leaning themes that have aged well. It aired across various outlets, including the USA Network, and deserves way more respect than it usually gets.

2. ReBoot (1994)

   Mainframe Entertainment kicked off one of the first fully CG-animated series ever with a simple hook: guardian Bob protects the city of Mainframe from viruses like Megabyte and Hexadecimal. Then the show evolved into something wilder and darker. Four seasons in, it had a second life on Cartoon Network, which helped push out movie- length entries meant to tie things up. And yet, it still leaves you on a cliffhanger. Yep, both things can be true. If you missed it back then, the ambition alone makes it worth diving into now.

3. Star Trek: Prodigy (2021)

   Lower Decks gets most of the Trek animation buzz, but Prodigy built a legit following of its own. It kicks off with a scrappy group of alien kids stumbling into a Starfleet vessel, then gradually leans harder into Federation lore in season 2. Bonus: Janeway returns — yes, Kate Mulgrew's Voyager captain is back to guide the next generation. The show wrapped after two seasons, and fans have been loudly asking for a season 3. With the ongoing merger chatter around Paramount and Warner Bros., the odds feel murky, but the two seasons we got are absolutely worth the trip.

4. Monster Force (1990s)

   Is the story as layered as Exosquad or ReBoot? Not really. Is it a pulpy good time that reimagines the Universal Monsters with a squad of high-tech hunters squaring off against Dracula, the Wolf Man, the Mummy, and friends? Absolutely. It was built for Saturday mornings and, frustratingly, it is not on streaming right now. If you love classic creatures and wild 90s vibes, put this on your watchlist for when it pops up.

5. Invasion America (1990s)

   Created by Steven Spielberg — which is a pretty wild credential to get lost in the shuffle — this 13-episode Warner Bros. series follows Cale-Oosha, an alien trying to stop his own people from strip-mining Earth. He falls for Rita Carter, and their son, David, grows into the show's human-alien hybrid hero. It is a quick binge, but you can feel that Spielberg-level spark in the premise and set pieces.

6. The Zeta Project (2001)

   The DC Animated Universe has titans like Batman, Superman, and Justice League. Then there is this Kids WB spin-off from Batman Beyond that most folks overlooked. Zeta is a fugitive assassination android who crossed paths with Terry McGinnis before breaking out into his own series with teenage ally Ro. Across two seasons, it bounces between a futuristic Gotham and the wider world, chasing identity and redemption. It does not get a clean ending, but if you want the full DCAU tapestry, this is required viewing.

7. Sealab 2021 (2000)

   Serious sci-fi? Not even close. Essential? Pretty much. This Adult Swim remix of the old Hanna-Barbera series Sealab 2020 ran four seasons and became one of the early pillars of Cartoon Network's late-night block. The jokes are still eminently quotable, and the show's anything-goes chaos pairs beautifully with its underwater sci-fi setting. If you somehow skipped it, correct that.