What made 2018 a standout year for science fiction television
2018 advanced science fiction television by balancing intimate character drama with bold speculative concepts, amid a surge of streaming originals and legacy-network experiments. Writers leaned into ethical quandaries, worldbuilding depth, and serialized long-form storytelling, while directors used the format to explore timely themes with cinematic scope. Across cable and streamers, SFF series pursued higher production values, more diverse casts, and narratives designed for binge consumption and long-term rewatchability.
This evergreen overview profiles the series that defined the year, explains what they achieved creatively, and clarifies how they shifted the conversation around genre television. Each profile balances premise, execution, and lasting influence, with an emphasis on facts and verifiable milestones rather than hype cycles.
Criteria for selection
To define the best science fiction TV shows of 2018, we prioritize clear genre alignment, narrative ambition, production quality, influence on peers or subsequent seasons, and measurable audience and critical reception. Ambient genre hybrids and lightly speculative dramas are excluded unless they advance core SFF storytelling in notable ways. Works must have premiered in calendar year 2018 or delivered their primary debut in accessible syndication or streaming in 2018. Data sources include industry trade reporting, peer-reviewed criticism, platform renewal announcements, and canonical episode guides.
Profile breakdown: leading shows of 2018
The following table summarizes key attributes of six widely recognized science fiction television highlights from 2018. Entries emphasize verifiable production milestones, platform releases, and narrative turning points that continue to affect how the shows are understood and recommended to new viewers.
| Show | Premiere Date (2018) | Platform | Primary Premise | Notable Milestone or Reception | Source Type |
|---|---|---|---|---|---|
| The Expanse (Season 3) | April 11, 2018 | Amazon Prime Video | Humanity colonizes the solar system; political and alien mysteries collide. | Renewed for Season 4 ahead of Season 3 premiere; wide critical praise for scale and acting. | Platform renewal + critical consensus |
| Stranger Things (Season 2) | October 27, 2018 | Netflix | Kids confront supernatural forces connected to a parallel dimension. | Largest simultaneous viewing week for a Netflix series at the time. | Netflix viewing data + trade reporting |
| The Handmaid’s Tale (Season 2) | April 25, 2018 | Hulu | Dystopian theocracy explores patriarchy and resistance. | 13 Emmy nominations; renewed for Season 3. | Industry awards + platform press release |
| Westworld (Season 2) | April 22, 2018 | HBO | AI hosts gain self-awareness amid narrative labyrinths. | 17 Primetime Emmy nominations; divided critical reception but high discourse volume. | HBO order + awards coverage |
| Into the Badlands (Season 2) | April 22, 2018 | AMC | Stylized post-apocalyptic frontier with martial-arts combat and politics. | Renewed for Season 3; praised choreography and worldbuilding. | Network renewal + reviews |
| Altered Carbon | February 2, 2018 | Netflix | Consciousnesses transfer between bodies; noir crime in a future metropolis. | 10 Primetime Emmy nominations; launch title for major platform investment in genre. | Platform announcements + critics’ reviews |
The Expanse — Season 3
The Expanse continued hard-SF political worldbuilding in Season 3, emphasizing interplanetary diplomacy and the protomolecule’s implications. Critics highlighted improved pacing and character integration after a slight midseason dip. The show’s blend of physics-consistent space combat and institutional intrigue helped it remain a benchmark for technically minded sci-fi television.
Stranger Things — Season 2
Stranger Things 2 expanded the Hawkins mythos with an alternately sinister and melancholy alternate dimension, while deepening ensemble dynamics. Season 2 leaned into nostalgia templates but introduced multi-episode arcs that credibly endangered the town across multiple timelines. Audience retention metrics and viewership records cemented its status as a defining genre show for streamers.
The Handmaid’s Tale — Season 2
Season 2 addressed the rise of authoritarian theocracy with a narrower focus on June’s resistance and the expanding resistance network. Though polarized in parts, its consistent depiction of institutional control and female agency kept it central to conversations about speculative drama as social critique.
Westworld — Season 2
Westworld’s second season foregrounded questions of authorship, narrative manipulation, and epistemological uncertainty. The show’s intricate timelines and withheld exposition polarized viewers but demonstrated how serialized science fiction can foreground structure as thematic device. Industry discourse around the season framed it as a risky experiment in audience expectations.
Into the Badlands — Season 2
Into the Badlands advanced its martial-arts–driven politics with a clearer seasonal arc and sharper worldbuilding cues. The season enhanced the show’s reputation for choreography and visual storytelling, helping it stand out in a crowded action-fantrey landscape.
Altered Carbon — Season 1
Altered Carbon introduced a future where identity is separable from the body, anchoring a noir-inflected mystery in dense visual design. Its high-profile casting and genre ambition made it a flagship Netflix launch, though the season’s finale drew criticism for underdeveloped supporting threads.
Thematic and structural trends in 2018 science fiction TV
Across these titles, 2018 science fiction television emphasized institutional critique, identity fluidity, and ontological uncertainty. Many series used speculative premises to interrogate power, memory, and consent, often with formally adventurous episode structures. Production design budgets increased, VFX pipelines matured for long-form narrative needs, and showrunners balanced serialized mythology with accessible entry points for new viewers.
Comparative attributes at a glance
The following list contrasts defining attributes of the season or series-year highlights, focusing on elements that recur across multiple entries and help explain why these shows are often cited together when discussing 2018’s best science fiction television.
- Serialized mythology versus episodic closure: The Expanse and Westworld leaned into long-form puzzles; Stranger Things balanced episodic scares with season arcs.
- Thematic focus: The Handmaid’s Tale and Altered Carbon foregrounded bodily autonomy and agency; Into the Badlands emphasized ritualized combat as political language.
- Platform influence: Netflix originals (Stranger Things, Altered Carbon) drove viewing metrics; Amazon (The Expanse) and HBO (Westworld) invested in prestige SFT.
- Critical reception spread: Westworld’s divisive second season illustrates how ambitious structure can polarize even well-resourced shows.
Enduring relevance and legacy
Though 2018 has passed, many of these series continued to shape production expectations, audience tolerance for dense worldbuilding, and studio approaches to speculative IP. Renewals, spin-off development, and sustained critical discussion indicate lasting influence beyond their initial release year. For viewers exploring science fiction television, these titles provide clear entry points into recurring genre themes—technological ethics, institutional power, and narrative experimentation—that remain central to the medium.