First on the list is Fullmetal Alchemist: Brotherhood. Much like Attack on Titan, this anime blends high-stakes battles with a richly developed world full of philosophical dilemmas. Following the journey of two brothers who use alchemy to try to reclaim what they’ve lost, Fullmetal Alchemist delves into themes of sacrifice, morality, and the consequences of power, much like the political and moral complexities seen in Attack on Titan.

Tokyo Ghoul is another must-watch. This anime explores a world where humans coexist with ghouls, terrifying creatures who survive by eating human flesh. Similar to Attack on Titan, Tokyo Ghoul questions what it means to be human and delves into the darker sides of survival. Protagonist Kaneki, much like Eren Yeager, grapples with his evolving nature and his role in a cruel world.

If you appreciated the military structure and strategies in Attack on Titan, Code Geass is a perfect follow-up. This anime centers around a rebellion led by a genius strategist, Lelouch, who uses his mysterious power to wage war against an oppressive empire. The tactical brilliance, psychological battles, and epic confrontations in Code Geass will remind you of the fierce fights and political intrigue that define Attack on Titan.

Another strong recommendation is The Promised Neverland. This anime shares the same heart-pounding tension as Attack on Titan, as it follows a group of children trying to escape from an orphanage that holds a dark secret. Much like the fight for survival against the Titans, The Promised Neverland keeps viewers on the edge of their seats with thrilling escape plans and shocking revelations.

For fans of dark fantasy, Claymore is a fantastic choice. Set in a world where human-eating monsters known as Yoma terrorize villages, the story follows warriors called Claymores, who are half-human, half-monster hybrids. The intense battles, horrific creatures, and themes of transformation and revenge strongly parallel the narrative elements of Attack on Titan.

Another anime worth checking out is Seraph of the End. Set in a post-apocalyptic world where vampires rule over humanity, this anime is filled with exciting action sequences and a plot centered around survival and rebellion. Similar to Attack on Titan, Seraph of the End portrays a broken world where humans are fighting back against their oppressors with limited resources.

Parasyte: The Maxim offers a thought-provoking sci-fi twist on humanity’s battle against an unknown threat. When parasitic aliens take over human bodies, a teenager named Shinichi finds himself in a unique position to fight back. The parasitic invasion and the protagonist's inner conflict evoke the same tension and body horror that fans of Attack on Titan will enjoy.

Death Note offers a different kind of psychological thrill. While not action-packed in the traditional sense, its intense cat-and-mouse game between the brilliant high schooler Light Yagami and detective L gives it a level of suspense and intrigue similar to the battles of wits in Attack on Titan. The themes of justice, power, and the consequences of wielding immense power also resonate deeply with the moral struggles seen in Attack on Titan.

For fans who love intricate world-building and political intrigue, Vinland Saga is an excellent choice. Based on historical events, this anime follows Thorfinn, a young Viking seeking revenge for his father’s death. Vinland Saga offers intense action sequences, deep character development, and a rich exploration of themes like vengeance, honor, and the futility of war, making it a perfect complement to the themes of Attack on Titan.

Lastly, Akame ga Kill! offers high-stakes action and explores the darker side of warfare. It follows a group of assassins fighting against a corrupt empire. Like Attack on Titan, it’s unafraid to kill off characters and depict the harsh realities of rebellion, making for a gripping and emotional story.

In conclusion, if you loved Attack on Titan for its intense action, complex characters, and high-stakes storytelling, these ten anime are sure to keep you hooked. Each series offers its own unique take on survival, morality, and power, ensuring you’ll find plenty of thrilling and thought-provoking content to enjoy.