Anime Like Humanity Has Declined
If you loved Humanity Has Declined's Animation and Comedy storytelling, these anime deliver a similar experience — selected for art style, narrative depth, and emotional impact. Each includes where to stream it now.
★ Top Picks

Level E
Earth has been populated by thousands of aliens from all over the galaxy. While all the other aliens are aware of their presence, it is a secret only from the Earthlings. Baka, the prince of the planet Dogra, crash lands on Earth and loses his memory. He forcibly moves in with Yukitaka Tsutsui, a first year high school student who had just moved out on his own. The normal life he once knew is quickly pulled away as he becomes the target of the prince's torment.

Sleepy Princess in the Demon Castle
Syalis is a princess. A really cute one. When she gets kidnapped by the Demon King as a hostage, she's stuck in a castle full of demons, waiting to be rescued by her knight in shining armor. So what does she do? What any of us would. Take a nap—on a pillow she fashioned from her Teddy Demon guards. Duh.

Ground Control to Psychoelectric Girl
The story revolves around a highschool boy named Niwa Makoto. He lives with his aunt's family since his parents are away on business. It is there where he meets his mysterious cousin of the same age Touwa Erio — who happens to tie a futon mattress around her upper body and is a self-proclaimed alien. Her staple food is pizza. Erio had been missing for half a year and was found floating in the sea. She doesn't remember anything about what happened during that period of time, but she began to think that it was the act of an alien and wanders the neighbourhood wrapped in the futon.

Tengoku Daimakyo
In the year 2024, the world has collapsed. Grotesque monsters lurk amongst the ruins of Japan, while remaining people scrape together what they can to survive. Kiruko, an odd-job girl in Nakano, accepts a mysterious woman's dying wish to take a boy named Maru to a place called Heaven. Maru is convinced that there will be a boy there who looks exactly like him.

The Disastrous Life of Saiki K.
High school sophomore Kusuo Saiki swore as a child that he would keep his psychic talents hidden, but his abilities still make his life difficult.

The Demon Girl Next Door
Awakening her dormant abilities as a devil one day, Yuuko Yoshida aka Shadow Mistress Yuuko, is entrusted with the mission to defeat the Light clan's shrine maiden, a magical girl, by her ancestor Lilith. Yuuko meets magical girl Momo Chiyoda through her classmate Anri Sada, and challenges her to a duel, but loses quickly due to her lack of strength. Since then, Yuuko has struggled with her role as a devil and her duel with Momo, and borrowed help from her regularly. However, by a strange coincidence, Yuuko also weakens Momo by taking away her power to cooperate in protecting the peace of Tama city.

DEMON LORD 2099
Five centuries ago, Demon Lord Veltol reigned over an immortal nation. Now, the time has come for him to awaken once again. The year is 2099, and civilization has reached peak evolution, leading to a high-tech landscape with towering skyscrapers—nothing like he’s conquered before. Veltol may be a relic of the past, but make no mistake, this new world will be his for the taking!

Farming Life in Another World
After Hiraku dies of a serious illness, God brings him back to life, gives his health and youth back, and sends him to a fantasy world of his choice. In order to enjoy his second shot, God bestows upon him the almighty farming tool! Watch as Hiraku digs, chops, and ploughs in another world in this laidback farming fantasy!
More Anime Like Humanity Has Declined

Uncle from Another World
After being in a coma for 17 years, Takafumi's middle-aged uncle suddenly wakes up speaking an unrecognizable language and wielding magical powers.

Dr. Slump
Senbei Norimaki, known by his nickname Dr. Slump, a genius yet under-respected inventor and roboticist, creates an android by the name of Arale, and poses her as his little sister. What starts as an experiment in robotics turns into an adventure every day for the residents of Penguin Village, a wacky rural community with several colorful characters interacting with Arale and her creator.

KONOSUBA - God's blessing on this wonderful world!
After a traffic accident, Kazuma Sato’s disappointingly brief life was supposed to be over, but he wakes up to see a beautiful girl before him. She claims to be a goddess, Aqua, and asks if he would like to go to another world and bring only one thing with him. Kazuma decides to bring the goddess herself, and they are transported to a fantasy world filled with adventure, ruled by a demon king. Now Kazuma only wants to live in peace, but Aqua wants to solve many of this world’s problems, and the demon king will only turn a blind eye for so long…

Blood Lad
Staz is a vampire from the surreal "Demon World", and Fuyumi, an ordinary girl, accidentally wanders into the Demon World through a portal. Subsequently after meeting each other, Fuyumi is killed by a carnivorous plant and turned into a ghost, causing Staz to take responsibility and pledge to help bring her back to life.

Witchblade
Masane Amaha and her daughter Rihoko are on the run from a government child welfare agency that wants to take Rihoko away from her mother. They are caught and Rihoko is taken away. Meanwhile, Masane is attacked by an advanced weapon that can disguise itself as a human being. When faced with the danger, a strange light emits from her wrist and she transforms into a powerful being. She becomes involved in a power struggle between powerful organizations, with her at the center of their attention because she holds the greatest power of them all, the legendary Witchblade.

Adventure Time
Unlikely heroes Finn and Jake are buddies who traverse the mystical Land of Ooo. The best of friends, our heroes always find themselves in the middle of escapades. Finn and Jake depend on each other through thick and thin.

Life with an Ordinary Guy Who Reincarnated into a Total Fantasy Knockout
Childhood friends Tachibana Hinata and Jinguji Tsukasa were living the everyday life of office workers. Then, on the way home from a mixer, they were sent flying into another world by a mysterious being. Once there, Jinguji sees his best friend has been turned into a beautiful blonde-haired, blue-eyed girl...?! The adorableness of Tachibana’s female form completely flummoxes Tachibana. But these two are each others’ best friends. To keep their relationship from being destroyed, they must defeat the Demon Lord as quickly as possible and return to their original forms.

Call of the Night
Ko's new companion, Nazuna, could offer him dark gifts and a vampire's immortality. But there are conditions that Ko must meet before he can sink his teeth into vampirism, and he'll discover just how far he's willing to go to satisfy his desires.

Is This a Zombie?
Some guys have no luck; he’s got no pulse. That’s life for poor unfortunate, undead Ayumu. First, he was murdered by a serial killer. Total bummer. Then he was resurrected as a zombie by a cute little Necromancer. That seemed pretty cool until she moved into his house, refused to speak, and forced his rotting carcass to do all the cooking. After that, a magical girl in a pretty pink dress used her matching chainsaw to chop his corpse in half. Luckily, the Necromancer’s powers of resurrection trumped those of the chainsaw chick, so instead of dying (again), Ayumu became the world’s first magical girl zombie. There’s also a voluptuous vampire ninja who thinks zombie boy’s a pervert – and a hideous crayfish demon who wants to devour him. Confused? All you gotta know is this: zombies, frilly dresses, demons, and moe chainsaws. Pink. It’s the new dead.

A Centaur's Life
Kimihara Himeno, also known as "Hime," goes about her life, love, and studies just like any ordinary high school girl. The only difference is that she's a centaur. She enjoys her school life along with classmates of many unique shapes, including Nozomi the draconid, Kyoko the goatfolk, an angelfolk class representative, and Sassas-chan the Antarctican. Hime's younger cousin Shino-chan, her friend Maki-chan, and the class representative's four younger sisters also join the cast in this very cute slice-of-life story about girls who are human, yet aren't!

My One-Hit Kill Sister
Asahi, a boy who loves video games is killed in a traffic accident and ends up in another world. He tries to enjoy the otherworldly adventuring life he's always dreamed of, but his stats are on the level of an NPC's. He is in big trouble and is being chased by a monster when he hears, "Fear not, little brother!" and the monster is killed in one hit by Asahi's older sister, Maya, who followed Asahi to this world. So Maya has acquired some seriously OP skills, but she takes her adoration of her younger brother to extremes. Thus begins their story about an overpowered older sister with a brother complex and a younger brother with the weakest of stats in another world.

As a Reincarnated Aristocrat, I'll Use My Appraisal Skill to Rise in the World
Ars Louvent is reincarnated in another world as the young son of a minor noble who owns a small domain. Ars is not particularly strong or intelligent, but he was born with the Appraisal Skill that's able to see others' abilities and statuses. He uses his skill to find the best hidden talents in the world to make their small, weak domain into the best.
Why These Anime Are Similar
These recommendations share core qualities with Humanity Has Declined (2012): Animation and Comedy themes, comparable animation style, and similar narrative pacing. NoBadPicks uses TMDB collaborative filtering, genre matching, and AI analysis to surface anime most likely to resonate with fans of Humanity Has Declined.
See full details for Humanity Has Declined (2012)