If you liked the Ergo Proxy anime, the Anime-Planet community thinks you'd like:
Surrounded by water and a world of pollution, oppression, and never-ending rain, the city of ECOBAN feeds off of the surrounding pollutants to sustain life on this seemingly last continent on earth. Shua, a man thrown out of the city, misses the blue sky and now fights to cast down light on this cloud covered island, while uncovering figures from his past.
Both Wonderful Days and Ergo Proxy are about a polluted world in which only one city exists. The main characters have mixed feelings about the city, and think there might be another option.
Dark and post-apocalyptic. Ergo proxy places more weight on the dialogue and philosophical under-tones than WD but the two of them portray a world destroyed by humans themselves and the struggle to break free from the establishment. The eerie environment and high-tech cities in either one will remind you of the other. I did enjoy EP more than WD, but WD is definitely worth watching.
In a futuristic and wild west-inspired Japan, there are only two rules: the Number 1 rules the world and only the Number 2 can challenge him; these ranks are worn with pride in the manner of headbands. In these harsh times, Afro is a samurai who is on a mission for revenge – an evil gunman killed his father to become the Number 1, and it’s up to Afro to take him down in a shower of blood and entrails. He has mastered the art of the sword and become Number 2, but many others want to hold his title and the title of Number 1 for themselves. With competition and sword fights at every turn, can Afro finally exact his revenge?
26 years ago, something terrible happened in a middle school’s third year classroom. A popular, talented student named Misaki suddenly died, and the ramifications of that incident have caused each third year class since then to live in fear. It is now 1998, and Kouchi Sakakibara has just transferred into the notorious classroom, curious about the mysterious secret that his peers are hiding from him. He’s drawn to one enigmatic girl named Mei Misaki, a quiet student who wears an eye patch and warns him about getting involved with her, and continues to seek her out against the pleas of his classmates. And that’s when people begin to violently die...
If you enjoyed the sense of mystery and confusion throughout this world you should enjoy Another. It has been a rollercoaster of a series where you constantly questions what is real and what doesn't exist. It is hard to have an opinion in one episode without everything changing a few episodes later. If you want something that won't be clear until the end I strongly recommend Another.
Sometimes the greatest distance is between people. Whether a man alienates himself from society with a façade of cheerfulness, or two friends fail to communicate their feelings of betrayal, invisible barriers plague mankind. Although love should bring people together, when a stoic renter and a dutiful monk choose to court a widow’s daughter, their mutual affections drive a bitter gap between them. During each encounter filled with mistrust and despair, the flaws of human nature slowly reveal themselves...
Both feature very human elements- of the lesser degree- and speaks volumes of the true nature of man.
Aoi Bungaku is not as action packed[though very violent at times] but it still ventures into the realms of the darker side of the human mind. Few several short stories it makes valuable comparisons between natural human emotion and severe psychosis, all the while maintaining a fast-paced story to keep the viewer interested.
If you like action, vice violence mixed in with your intelligent observation of society, this is a show for you.
In a bleak look at the future, Avenger takes place in a desolate wasteland filled with domed cities. Fighters from each town battle each other for power and prestige. Avenger follows the path of Leila, one of these fighters, as well as Nei, a young being called a "doll" (an android created to live with and serve humans), as they leave their home city, travelling into the wasteland.
on the surface they may look different, because they are drawn differently (Ergo Proxy is really dark and atmospheric whereas Avenger has more of a He-Man-like flair) but in essence, the plots of Ergo Proxy and Avenger are ridiculously similar
main character, haunted by his/her past & accompanied by an insanely cute robot kid travels around the dome cities of a devastated world, where humans appear to have no future
there's more, i really don't wanna go into details and spoil more
just see for yourself