If you liked the Blast of Tempest anime, the Anime-Planet community thinks you'd like:
Ten years before Shirou Emiya's and Saber's fateful meeting, Japan is the stage for the fourth Holy Grail War. Seven Masters, each with his own dreams, step forward to win the boon of the mystic relic. Into this fray comes Kiritsugu Emiya, the enigmatic "Mage Killer" who wants to use the Grail to make a better world. Can he, paired with the indomitable Saber win the War? Or will he fall to the ambitions of the other mages?
1. Magic exists in both worlds, but only certain people can utilise it. The magic in both anime also require some form of sacrifice before the magician can equip it (i.e., tools that civilisation use in Zetsuen no Tempest, magical power in Fate/Zero)
2. The two main male protagonists in both anime seek completely different goals. However, in Zetsuen no Tempest, the two protagonists are friends. Also, all four characters from the respective anime are really intelligent.
3. A lot of planning and plotting are involved in both anime. All the planning and execution are really intriguing and entertaining.
If you like world-encompassing magical systems, opposing factions, and intense competition & emotional interaction between characters AND you liked either Fate/Zero or Blast of Tempest, you would probably also enjoy the other!
Kagura and Yomi are two girls who have a bond that cannot be broken. While once they fought side by side against the supernatural forces that threaten the planet, fate had something different in store for these star-crossed companions. Yet to understand the present, one must first experience the past – a time before Kagura’s involvement with the Supernatural Disaster Prevention Agency. Always cheery and good-natured to a fault, the young Kagura first meets Yomi when she is invited into her home. Over time, the two battle malicious spirits and grow closer together – but soon, more terrifying foes begin to reveal themselves. A swarm of glowing blue butterflies and a mysterious stone are harbingers of darker things to come, and one thing’s for sure: Kagura and Yomi will never be the same.
With its focus on two friends and a similar blend of realism + magic, Ga Rei Zero was the most similar anime I could think of for Zetsuen no Tempest. If you have enjoyed either show, I'd recommend the other.
Both shows feature main characters that posses supernatural abilities and both have drama action and butterflies who appear when something is happening they also have the same thriller like ending.
On a tragic night in Neo Verona, the Capulet family is murdered by Montague and the country is seized. The only Capulet survivor is the child Juliet, who is rescued by loyal knights. Fourteen years later, people in Neo Verona live in poverty and fear. Juliet has spent her life in hiding, and in disguise as the male Red Whirlwind, secretly fighting Neo Verona’s oppression. On one of her secret adventures, she is helped by Romeo and falls in love. Finally, on one fateful day, Juliet’s family reveals her heritage and their desire for her to reclaim her title and rescue Neo Verona from tyranny. Meanwhile, Juliet also discovers that Romeo is the son of her worst enemy. Can Juliet rescue Neo Verona and kill the father of the man she loves?
Both series have a storyline based on shakespears novels
Like Romeo x Juliet is based on the shakespear novel Romeo & Juliet.
Zetsuen no tempest is based on the shakespear novels Hamlet & The Tempest.
Not only do both stories revolve around the hidden/forbidden love theme of Romeo and Juliet, the characters from both animes were portrayed with a Shakespeare character in mind. In the case of Blast of Tempest, however, it doesn't merely feature Romeo and Juliet, but The Tempest and Hamlet as well. Both series quote from Shakespeare multiple times.
The mystery of "The Blade Children" is a secret which has remained well-hidden, and has cost some their lives. After Narumi Ayumu's brother disappears in a search for the answer, Narumi is forced to unravel this mystery for himself. Join him in his investigation which will lead him to the secrets of the Blade Children, and to tests of skill which may prove to be fatal.
In both shows, the characters are thrown into complicated situations where they must use reason to solve crimes, rescue themselves from a death trap, and question everything they thought to be true. If you enjoy fighting with logic in life or death situations, then both of these shows are for you.
In 2010, the Britannian Empire enslaved Japan using powerful mecha known as Knightmares; in the aftermath Japan was renamed Area 11, and its people began a hard and terrible existence. Lelouch, a Britannian student living in Area 11, has grown up hating the Empire and everything it stands for. One day, in the middle of a terrorist attack, Lelouch meets a mysterious girl who grants him the ability to control minds. Can he use his new power to fight for freedom, or will his hatred twist his good intentions into mindless acts of vengeance?
They're both great animes with dark themes where the protagonists fight to right an injustice and an almost brother/rival relationship between the two male characters. They have complex characters where motivations are not always clear cut and events can turn the story on its head.
The characters are also similarly somewhat haughty and arrogant (CG - Lelouch, ZnT - Shakespear quoting lolita complex guy) anti heroes. I liked Geass a bit better due to its length but Tempest has a much more satisfying ending imo. Enjoyable animes both.