Knights of Sidonia: Battle for Planet Nine
Action, Mecha, Sci-Fi, Seinen, Space
Sidonia no Kishi has always been one of the most underrated anime series ever in my mind. Actually I'm genuinely confused as to why it isn't higher rated than it is because I swear I almost never see anyone say anything negative about it. It's an anime which is not afraid to kill off characters, has a storyline on an epic scale, excellent usage of battle CGI and probably the best sound directing I have ever heard. Overall it's an incredibly joyride from start to finish and I really wish more people would give it a shot.