Total Recommendations: 2
Both are mecha anime, the humanity is on the brink of extinction and they are fighting atrocities made of flesh. The atmosphere is dark in both, the difference is that Sidonia no kishi show us a fighter on the front line.
Both same director, both about a love who canno't be lived by the two lovers. Beautiful art, beautiful soundtrack, all the emotions pass by these and some few words. In others words, both are wonderful and similar