So, without further ado, here are the seven best new sci-fi shows of 2025, including some releases that went under the radar... Based on a graphic novel by Héctor Germán Oesterheld which dates all the way back to the late 1950s, The Eternaut – which is a Spanish language original series from Netflix – has great source material.

As 2025 draws to a close, here's a look back at the best TV shows that kept streaming fans entertained this year.

The first TV series in the Alien franchise, another round of Nathan Fielder's The Rehearsal and a detective drama with a difference

A time to look back on the best sci-fi TV shows of 2025 and say "blimey, that was pretty damn good". The top sci-fi TV shows of 2025 are a mix of big franchises, returning hits, and exciting new additions.

The latest instalment saw Ncuti Gatwa return as the Fifteenth Doctor alongside companion Varada Sethu for adventures in 1950s America, a planet 500,000 in the future, 2019 Lagos, and even a futuristic version of the Eurovision Song Contest.

Netflix’s biggest TV success of 2025 is a show that became a political and social talking point. Adolescence is a show that has transcended entertainment, having been studied and examined by pretty much every group dedicated to social change as an insight into a hidden and growing problem.

From ambitious sci-fi epics like Andor to historical dramas like Death by Lightning, these are the best streaming shows that debuted throughout 2025.

The series is hilarious, which makes it a little unusual in the sci-fi space. It was a standout for how it deals with the overall concept of human and AI relations and Skarsgard’s performance in particular was considered a major standout by critics and fans alike.