Anime Codex
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Best Sci-Fi Anime, Ranked

The 32 best sci-fi anime in the Codex, ranked by weighted score across the six-criterion rubric - Steins;Gate leads the list. Every title earned its place on story, characters, themes, world-building, animation, and cultural impact, not vote counts.

The short answer

The best sci-fi anime is Steins;Gate — 9.11 out of 10 on the Anime Codex six-criterion rubric — scored, not voted. All 32 ranked below.

Related rankings

FAQ

What is the best sci-fi anime?
Steins;Gate ranks #1 among sci-fi anime on the Anime Codex rubric, scoring 9.11 out of 10. Every title is scored on story, characters, themes, world-building, animation, and cultural impact — not vote counts.
How are the best sci-fi anime ranked?
Each show is scored 0-10 on six criteria - story, character writing, themes, world-building, animation, and cultural impact - then combined into a single weighted Codex score. The sci-fi list is those scores, sorted highest first.
How many sci-fi anime are ranked here?
32 sci-fi titles from the Codex catalogue currently carry a full ranking. The list updates as new shows are scored.
Is this ranking based on popularity?
No. Popularity and member counts don't feed the score. The ranking reflects the rubric only, which is why it often disagrees with the crowd - and that gap is the point.