Eren, Armin, and Mikasa live in a violent world affected by the presence of the titans: monsters who eat human beings out of pleasure. When Eren's mother gets devoured before his eyes, the young boy decides to join the Survey Corps. His dream is to eventually fight against the titans outside the walls, and seek revenge for what was taken from him. Together with Armin and Mikasa, unwilling to be left behind, the three of them begin their perilous path...

Revisions and Shingeki no Kyojin may look very different at a first glance, yet they share some similarities. Both these shows are action-packed shounen, where a massive event causes a big change leading the protagonists to adapt to a new situation. Both Eren and Daisuke feel the responsibility to protect the dear friends who followed them, and are willing to fight on the front line. What's more, our protagonists have to face huge creatures – the titans, and the revisions – with particular, new weapons. Even though Shingeki no Kyojin lacks the Sci-Fi elements, you'll still find these two shows very similar!

In 2071 mankind is about to be erased by strange monsters called “Aragami”. To fight them, an organization called Fenrir was created, hoping to save humanity from the threat. Fenrir's strength lies with the so-called “God Eaters,” humans who are able to use the only weapons that can destroy Aragami, the “God Arcs.” Lenka Utsugi is a God Eater, and as such, he will have to fight with all his might to help the organization...

Revisions and God Eater are both shounen anime, with sci-fi elements. In both these shows, mankind is threatened by huge creatures – revisions and aragami – and it's up to a group of people to fight back. Both Lenka and Daisuke are provided with some kind of weapons able to destroy the enemy, and both of them will accept their fate, and fight head on. If you enjoyed Revisions, God Eater will suit your tastes all the same!

Aoba Watase is your average high school boy with a peaceful life. One day, back to school after summer break, his quiet life is suddenly turned upside down: a huge robot falls from the sky, and starts chasing after him. When he thinks he was about to die, Hina Yumihara – one of his classmates – appears in front of his eyes, in her giant robot, and rescues Aoba. She sends him 70 years to the future, where the Free Pact Alliance and the Zogilia Republic are at war with each other. After meeting a Valiancer pilot called Dio Weinberg, Aoba's new adventure begins!

Revisions and Buddy Complex are both mecha, sci-fi, shounen anime, full of action. Both Daisuke and Aoba are sent years forward in the future, with the purpose of solving a certain situation. Both of them are required to use a mobile suit, and both of them feel the responsibility to protect someone, which is the reason why they give their best. If you enjoyed Revisions, you are bound to enjoy Buddy Complex all the same!

Haruto Tokishima and his friends live peacefully in space, in a division called Module 77. One day, one of the main powers – The Dorssian Military Pact Federation – decides to invade the nation of JIOR, and Haruto and his friends' lives drastically change. Some circumstances lead Haruto to become a Valvrave pilot, and following him, even some of his friends turn to become Valvrave pilots in order to help him against Dorssia. Haruto and his friends will be swept by hardships, losses, and struggles, without losing hope for a better future.

With Valvrave the Liberator we are once again in front of a show sharing with Revisions some important traits. In fact, both these shows are action-packed shounen anime, involving sci-fi elements, and mecha. Haruto is similar to Daisuke somehow, as both of them wish to protect their precious friends, acting a bit like the heroes, trying to fix the situation by themselves. If you liked Revisions for its Sci-Fi, mecha elements, and for the theme of true friendships, Valvrave the Liberator is a must-see.

It's the year AD 2225, and located on the edge of the Geduld Sea, there's the Liebe Delta, where Kouji Aiba and Aoi Housen are training as astronauts. One day, during a routine dive procedure, some enemies attack and the space station falls into the Geduld, killing all the adults onboard. Left alone, Kouji and Aoi must survive and face a long journey home. But the enemies are preparing another attack...

Revisions and Infinite Ryvius are both sci-fi anime, sharing some important themes. In fact, in both these shows we find teenagers who have to overcome a devastating situation they don't even understand. As teenager protagonists, they all will face moments of discomfort, and tensions that will eventually divide their groups. Even though Infinite Ryvius is more slow-paced and drama-oriented than Revisions, you'll find in it the same atmospheres you found in Revisions. You should totally give it a shot!

15 friends – boys and girls – are enjoying summer camp together, until they discover a cave by the sea, and decide to enter the place. Upon stepping inside the mysterious grotto, they find a man called Kokopelli in a room full of computers. Kokopelli is developing a game involving giant robots, that have to protect the Earth from alien invasions, but since he wasn't able to test the game, he manages to convince the kids to become his testers. All but one of the children sign a contract with Kokopelli, and that's when the situation turns for the worst!

Revisions and Bokurano are Sci-Fi, mecha anime, but Bokurano is labeled as a seinen, so it's intended for a mature audience. Both these shows feature a group of young boys and girls, who get thrown in an entirely new situation. They have to adapt, and try to find a solution, but it will be a hard task. What's more, the characters of both these shows are asked to fight inside robots, against revisions, or aliens. All in all, you can consider Bokurano a more mature version of Revisions, so you should give it a try!