Let's be honest: The X-Files will always hold a special place in pop culture. Mulder and Scully are the FBI's dream team, and that theme song still gives chills. But nostalgia can be a tricky filter. It glosses over the convoluted mythology, the seasons that lost their way, and a revival that proved some legends are best left untouched. Being the most remembered doesn't mean being the best.
These seven sci-fi shows don't just borrow from The X-Files playbook—they rewrite it. They offer tighter storytelling, richer character arcs, and conclusions that actually satisfy. Here are the series that deserve the crown.
The Expanse (2015–2022)
Set 200 years in the future across a colonized solar system, The Expanse follows the crew of a salvage ship who stumble into a conspiracy that threatens all of humanity. Steven Strait plays Jim Holden, a man who can't resist poking his nose where it doesn't belong, alongside a stellar cast including Cas Anvar, Dominique Tipper, Wes Chatham, and Shohreh Aghdashloo. Unlike The X-Files, which often promised answers it never delivered, The Expanse follows through on its mysteries.
The Protomolecule—an alien substance that rewrites living tissue—drives the plot without ever fully explaining itself. It's a threat you can't shoot or negotiate with. Syfy canceled the show after three seasons, but fans launched a campaign so intense they flew a banner over Amazon HQ, securing a new home and six total seasons. NASA even praised its scientific accuracy. That kind of devotion doesn't happen for mediocre shows.
12 Monkeys (2015–2018)
Adapted from Terry Gilliam's 1995 film, Syfy's 12 Monkeys is a rare TV adaptation that improves on its source material. Aaron Stanford plays James Cole, a time traveler from a plague-ravaged 2043 sent back to stop the outbreak. He teams up with virologist Cassandra Railly (Amanda Schull), who grows from a reluctant kidnap victim into a compelling hero. The Army of the 12 Monkeys wants to end time itself—a premise that sounds insane but works beautifully.
The show boasts a phenomenal supporting cast and one of the most satisfying finales in recent memory. If you miss the X-Files dynamic of two people chasing the unexplainable, Cole and Cassie have that same exhausted, devoted energy—just with a healthy disregard for physics.
Twin Peaks (1990–2017)
Before David Lynch and Mark Frost's murder mystery, prestige TV was barely a concept. Laura Palmer's body washing ashore in a Washington logging town changed what network television could do. Kyle MacLachlan's Agent Dale Cooper—a man who narrates into a tape recorder and treats coffee as a spiritual experience—is the best FBI agent on TV. Sorry, Mulder.
The original two seasons are essential, even when the show cannibalizes itself. But Twin Peaks: The Return (2017) is somehow better: 18 episodes of pure Lynchian madness on a premium budget. The X-Files built its identity on unresolved dread, which worked until the unresolved part felt like the writers had lost the map. Twin Peaks had dread baked into its DNA from the start. The mystery was always secondary to the atmosphere, so no bad answer could ruin it.
Fringe (2008–2013)
Fox gave J.J. Abrams, Alex Kurtzman, and Roberto Orci money to make a show about fringe science—telekinesis, reanimated corpses, exploding heads—and they delivered five seasons that started as a procedural and ended as a meditation on parenthood and parallel universes. Anna Torv's Olivia Dunham anchors the show with intensity, while John Noble's Walter Bishop delivers perhaps the greatest performance in genre TV: a man who destroyed the world and spent decades rebuilding his sanity. Joshua Jackson is there too, being charming.
The show's secret weapon is its alternate universe, where every character you love becomes a different, often darker version of themselves. Fringe ended on its own terms after five seasons—a rare luxury. Its monster-of-the-week formula borrowed from The X-Files is just the container. What's inside is weirder and, in its final seasons, genuinely moving.
These shows prove that sci-fi can be more than a cult classic. They offer complete, satisfying journeys that The X-Files only hinted at. For more binge-worthy sci-fi, check out our list of near-perfect soft sci-fi masterpieces or shows that get better with every rewatch.
