Season 2 has been confirmed as per last episode. That is good news!

The 2021 non-canon movie is good despite not being what we all were expecting, but then it has its ups and downs.

I'm surprised I've only just heard of this as a big SciFi fan, and I'll say while this isn't a 10/10 anime, not even close, it was enjoyable.

Season 1 - excellent Season 2 - watchable OVA - WAT Spoiler - this is a review of the whole series I’m sorry, wtf did I just watch? Tsutomu Nihei is an auteur in his own right, but his first foray into “approachable” storytelling is…misguided, to say the least. His corpus consists primarily of non-verbal communiques: the characters are mysteries that begin to make sense over time without any legitimate exposition. Words are a treat, and are few and far in between in one of his OG mangas. The story is usually driven by hard-to-follow explosions and well-illustrated-but-confusing fight scenes set in a random building straight out of an architect student’s wet dream. Knights of Sidonia, however, is a step away from his usual genius in favor of actual garbage. This bizarre attempt at turning “Gargantia on the Verdurous Planet” into a harem story is a LONG way away from Blame!. As a first foray into writing a character-driven story, KoS isn’t bad, but by the gods it isn’t good, either. Tsutomu Nihei should have stayed in his lane and just delivered another arcane epic driven by absurdist architectural backdrops and LSD dreams. That said I watched the entirety of the show in 4 days. My review is invalid.

The first thing that will catch you with this series is the animation style. It threw me for a loop at first, but you get used to it as the series goes on. But enough of that, there are a lot of really interesting ideas floating about in this series. The concept of how humans would evolve and survive is an interesting one. On top of that, if you enjoy mecha series, you'll feel right at home with this one. You'll go through a fair number of emotions with this series: disgust, hope, despair, and then the "nothing is sacred" mentality. Which if you ask me, that last one is great for series. Very worth the watch.