If you're looking for anime similar to Planzet, you might like these titles. All recommendations are made by Anime-Planet users like you!
In the year 2025, ten billion people inhabit Earth. Science and technology have evolved immensely and people have begun to transform other planets to be able to sustain life. When a spaceship on a return trip from Mars carrying a large cocoon-like object explodes and crashes in Tokyo, it unleashes a seemingly unstoppable monster, Negadon, capable of destroying the world. Ryuichi Narasaki, a robot engineer haunted by his daughter's death caused by one of his creations, and his giant robot are Earth’s only hope. But after giving up robotics ten years ago, can Ryuichi and his robot defeat the monster from Mars and save all of humanity?
Negadon and Planzet are both CGI anime about people who defend Earth from an otherworldly being. Both anime feature mechs and have somewhat simular feel. Neither anime are all that great (though I personally liked Planzet a little bit more than Negadon); still, if you liked one you may want to check out the other.
These two anime have a surprisingly similar feel, production-wise, which makes sense as they share the same director. Both are fully CGI titles with a fairly shallow, formulaic sci fi plot that have a similar 'filming' style.
In a world where mankind is at the brink of destruction, one lone scientist has concocted the means to save it: bioroids. These artificial humans coexist with humans in the city of Olympus, under the watchful eye of the supercomputer Gaia -- to stabilize society. The military strongly opposes their use, however, and the elite soldier Deunan may hold the key to saving both the human race and the lives of the bioroids. Teamed up with an old friend, Briareos, Deunan must race against the clock to discover the secret of the Appleseed before countless lives are tragically lost...
Disturbed by Japan’s emergence as the de facto world leader in robotics, the United Nations instituted an international treaty requiring stringent regulations. When vocal objections failed to overturn the decision, Japan chose to withdraw from the UN and vanished from world view in a self-imposed isolation made possible by an impenetrable electromagnetic barrier. Now, ten years later in 2067, the only means of contact between Japan and the world belongs to Daiwa Heavy Industries, a powerful corporation monopolizing the world’s robotics market. The uneasy truce comes under question when SWORD, a U.S. special forces unit, finds disturbing evidence that Japan may have sinister designs for the rest of the world. SWORD must now infiltrate Japan to separate fact from fiction, but is anyone prepared for the truth?
Plot? Who needs plot when you've got CGI?
Vexille and Planzet provide fully CGI anime, although their plots are nothing more then a mishmash of science fiction action cliches - in Planzet's case, very obviously the plot of a Gundam movie (and a pastiche of mecha in general), while Vexille's influences are cyberpunk and the Matrix. Pretty much you get CGI sci-fi action that's empty and forgettable, but if you watched one for that, the other also provides.
In the far future, the world lives under the guidance of Olympus – a utopia built after the end of a global war that decimated over half the world’s population. Mankind lives beside both cyborgs and bioroids, a breed of genetically-engineered humans who don’t feel negative emotions. Deunan and Briareous continue to fight for the Olympus task force E.S.W.A.T., but after Briareous is injured in a mission involving a terrorist attack, Deunan is forced to partner with Tereus: a prototype combat bioroid whose genetic makeup was taken from Briareous. Together, the three must try to unravel an insidious terrorist plot and save Olympus once more.
Mecha. CGI. Science fiction cliches. Not particularly memorable plotting or characterisation. You want to just while away some time with stuff being shot at and things looking pretty CGI, either Ex Machina (a sequel to the Appleseed Movie, so seeing the first is recommended but not required) or Planzet is perfectly fine.
It is Universal Century 0093. Char Aznable believes humanity is being held down by Earth’s gravity and seeks to end their suffering. With the help of his Neo-Zeon forces, he seeks to drop the asteroid Axis down, leaving the Earth uninhabitable by creating an apocalyptic winter; doing so will force humanity into space, the only way to truly evolve. The only one standing in his way is his rival Amuro Ray and his Londo Bell forces. Amuro must use the full power of his Nu Gundam in order to have a chance in stopping Char. History is in the making as the two rivals battle it out one last time.
So, you like anime movies about mecha where they have to stop stuff from colliding with the world? While Char's Counterattack requires more then a little context - it is a conclusion to an arc that includes the first two or three Gundam series - it basically provides a more satisfying example of this sort of mecha story, one I can only suspect that Planzet may have been 'inspired' by.