Anime Like Snowball Earth

When aliens invaded Earth, Tetsuo stumbled into a robot and piloted it to defend Earth. Years later, he is sent to beat the aliens in deep space only for his mission to fail and be ejected back to Earth in an escape pod.

There, Testuo finds out that Earth has frozen over in just the short 14 years he was away. Determined to keep his promise to his robot to make 100 friends, Tetsuo sets out to find and befriend other humans.

In the distant future, humanity has abandoned a ruined Earth and now lives in the furthest reaches of space fighting their eternal enemy, the Hideauze. During one of their massive space battles, a young soldier named Ledo and his mecha Chamber are flung through a warp hole into space.

He crash lands on a strange planet that is covered completely in water. To his surprise, he finds that other humans also live there aboard massive fleets of boats.

Found by the Gargantia fleet, Ledo must navigate this strange new world.

With the world covered by a great snow sea, drinking water becoming scare, and livable land located at the feet of a few deteriorating orbital trees that extend into the sky, humanity has dwindled down to a few thousand.

According to legend, there is a sage that knows the secret to producing unlimited amounts of water, and Princess of Atland, Liliha, sets out from her war-threatened kingdom to find this sage in hopes of fostering peace.

She ends up floating to the top of an orbital tree where she finds Kaina, a young man part of a small village of elderly.

Although she couldn’t find the sage, Liliha takes Kaina with her back to her home where she hopes to find another route to peace or victory with the aggressive and technologically advanced mobile nation of Valghan that plagues the snow sea.

Driven to the point of extinction by creatures known as the Gadoll, humanity now lives out of a large mobile fortress known as Deca-Dence.

Inside, the residents are separated into Gears, warriors that fight the Gadoll, and Tankers who maintain the fortress. Natsume, a Tanker, has dreams of becoming a Gear, but is forced into armor repair where she meets a surly senpai named Kaburagi that has more skills than he lets on.

After a disaster fifteen years ago caused society to collapse, the survivors struggle to eek out an existence. Alongside trying to scrounge together food, clean water, and electricity, these survivors are also plagued by the appearance of man-eating monsters.

Two young survivors, Maru and Kiruko, wander the wasteland and make money off Maru’s ability to kill these man-eaters with a touch. Together, they are searching for a place called Heaven that they both hope will hold the answers to the tragic burdens that they hold in their heart.

After Earth was destroyed by an alien race known as the Gauna, humanity fled across the galaxy in giant seed ships looking for a new home.

In the year 3394, a mysterious man named Nagate Tanikaze surfaced from the bowels of the ship Sidonia and breaks his lifelong seclusion in search of food.

After being discovered, he finds himself dragged into the military just in time for a Gauna attack and discovers that he may just be the hero that the Sidonia needs.

The world is on the brink of destruction following the landing of the Angels, massive monsters that want nothing more than to kill and destroy. The only hope lies with the select few that can pilot government agency Nerv’s special Evangelion-type mechs.

The pilot must be compatible in order to pilot the Evangelions, and for Nerv leader, Gendo Ikari, one of those compatible few is his son, Shinji.

With the fate of mankind on his shoulders and fights that often mean death for the pilots, is 14-year-old Shinji up to the task?

Humanity has advanced to the point where mechs called Titatonostriders are used for combat in warfare. In a joint training exercise, soldiers from around the world have gathered on the Hawaiian island of Oahu to put their Titatonostriders to the test in combat exercises. Ao Isami from the Japanese Self-Defense Force and Lewis Smith from the United States Marine Corps are two participants that cross paths during a battle.

However, the training exercise is disrupted when an unknown alien enemy starts decimating the surrounding area. With Titatonostrider weaponry proving majorly ineffective, hope seems lost until a giant robot proclaiming himself as Bravern swoops in and tells Isami that he is to be his pilot.

In the distance future, huge, insect-like aliens have swarmed the galaxy. Not long after the first battles, the young Noriko Takaya enters training to become a space pilot after her father’s fleet was destroyed with no survivors.

Although her skills as a pilot are questionable, Noriko persists, fighting to overcome trauma, the doubts of her peers, and her own lack of confidence.