o i forgot also wolfs rain ergo proxy paranoia agent witch hunter robin metropolis michiko e hatchin and dennou coil it seems kinda like a kids anime but deals with some serious themes 133t3l

I've never seen one. Manga is always better. Always. There is always so much less in anime adaptations of a manga. Looking back at the days of watching anime before I knew of the slew of manga available, I now see it as a waste of time. Anime adaptations are always lacking a lot from what the manga had. Movie adaptations are worse. Guaranteed. Every time. You can take that shit to the bank 🤣

I'll second FLCL, Cowboy Bebop, and FMA Brotherhood just so I'm not the negative Nancy putting down everyone's suggestions 🤣
Elfen Lied was good, but, like normal, the manga is better. I'd probably cut my wrists if I heard the opening song again. It's all sooo damn depressing. Gave me quite the thorough mindfucking. So bad it may have left lesions lol. Oh God... it's coming back to me! carves words into thigh; draws on wall with blood

As for other suggested anime that are "MUST SEE," Every one I've seen listed that I've watched and read is much, much better in manga format. Berserk loses most of the gore and detail and is 15 years old. Same goes for Claymore in the gore and detail department. Monster is droll, manga is better, but not much. The last 20 or so chapters pissed me off. Ending was anti-climactic and overall crap.

Quote from TaoPaiPai

detroit metal city
manages to be just as funny and sometime even more funny than the manga

Are you trolling? The only good part of the DMC anime is the last couple minutes when the protagonist becomes his alter ego (the lead singer to a death metal band) and he acts crazy. It's just 15 minutes of so much fast-paced dialogue that it ruins the story. I'd highly suggest reading the manga.

-No longer do I quote great scholars, the famous, etc. Kids feigning wisdom ruined it.
--I wont type a post like a college report. If you don't read it just for that reason, you don't have to post why your hoity-toity ass refused to. I swear, so many people on this site are so full of themselves. A lot seem to think they always have an "intelligent and/or logical" point or show signs of a superiority complex. They never it they're wrong. Maybe partially, but excuses abound! :\
-Stop mailing me about my comments. I don't read them.
/sigrant

Clannad and Clannad After Story, ga-rei zero, Ano Hi Mita Hana no Namae wo Bokutachi wa Mada Shiranai, D-grayman..

**also the others that were already mentioned, fma brotherhood, code geass 1 and 2, steins; gate,

[CENTER][img]http://www.nodiatis.com/pub/4.jpg[/img][/CENTER]

I'll try to avoid those with translated manga counterparts seeing as they tend to be better most of the time.

Legend of Galactic Heroes
Twelve Kingdoms
Baccano!
Crest of the Stars
Durarara
Ghost in the Shell
Infinite Ryvius
Eden of the East
Seirei no Moribito
Kemono no Souja Erin
Last Exile
Darker than Black
Cowboy Bebop
Noein
Fantastic Children
Dennou Coil
Gankutsuo
Mahou Shoujo Madoka Magica
Bokurano
Now and Then, Here and There
Neon Genesis Evangelion
Tengen Toppa Gurren Lagann
Steins; Gate
Spice and Wolf
Ergo Proxy

Works by Type-Moon - YMMV
Works by Makoto Shinkai
Works by Hayao Miyazaki

WATCH gintama or your life will MISS a HUGE LOL 😀

Juuni Kokuki (Also known as Juuni kokki or The Twelve Kingdoms)
Awesome fantasy with action, drama, suspense and character growth. The original light novels are fantasy horror but the anime lack a bit of the horror. Or maybe it's just me?

Kemono no Souja Erin (also known as Beast Player Erin)
Also fantasy but it contain more drama than action.

Seirei no Moribito
Say what you want people, but this is absolutely a must watch even if people complain about the low quality production or whatever flaws you find. Even if there aren't that much of it, but the fighting scenes are quite exciting for they have a touch or realism. 🙂

Sora no Woto
K-ON! mixed with a post apocalyptic sci-fi military mecha anime? Sure thing but throw out the action out of mecha and military and insert slice of life and comedy and you get Sora no Woto! 😀

Haibane Renmei
A dramatic fantasy slice of life with a dark tone.

Aria the Animation + the Natural + Arietta (OVA) + the Origination
a sci-fi slice of life about three girls trying to become undine in a town called Neo Venezia on Aqua (known as Mars to us). There is a plot and every episode is about something. Characters grow and get deeper with every season and then it end and leave you to want more. 🙁 Well, that happened to me.

Bakemonogatari
Mystery, supernatural stuff, some action, romance and lots of dialog. The romance isn't that heavy though nor is the action.
It's about a high school kid named Koyomi Araragi which is a former vampire that accidentally creates a harem of chicks by helping them with their supernatural problems. 😲 Well, that is one way to see it at least. 😛

Jigoku Shoujo
Episodic psychological horror with supernatural stuff. While at it try the sequels Futakomori and Mitsuganae.

Mardock Scramble
Action sci-fi similar to Ghost in a Shell. there are three movies, The First Compression, The Second Combustion and The Third Exhaust. I haven't seen the third yet but I'm sure it's awesome. 😀

I can write a wall of text on how I'm despairing for some stuff be nominated in a "must see" topic but well, let's skip that. Let's only say that nobody said Kigeki, which made me very sad 🙁

But I pretty much agree with blakraven66 list. Despite not everything being a must see there, there are some true classic mentioned, which others failed to mention so far, so I'd start from his list. Though there is a huge miss, which is Kaiba, to me the best dystopian sci-fi "thing" ever made.

And since nobody mentioned it so far, I'm gonna also add Shinkai Makoto's Kumo no Mukou, Yakusoku no Basho, aka Beyond the Clouds.

What I like in Trivial Pursuit style. Pick your category:[img]http://i379.photobucket.com/albums/oo233/Reid4891/Manga/trivia-1.jpg[/img]

-Guilty crown
-The legend of the legendary heroes

and about SAO....the light novel so a MUST SEE

Quote from blakraven66

Legend of Galactic Heroes

Second. +100ep epic space opera, definitely a must see. Trailer

"The oldest and strongest emotion of mankind is fear, and the oldest and strongest kind of fear is fear of the unknown"

Throwing in my two cents:
Phantom of Inferno
Serial Experiments Lain - Good food for thought
Akira - Very influential when it hit the West
Eve no Jikan
Higurashi no Naku Koro ni
Detective Conan
Hosoda Mamoru's recent works

Seconding:
Puella Magi Madoka Magica - 3 episode rule
Baka to Test to Shoukanjuu - brainless fun
Ano Hi Mita Hana no Namae o Bokutachi wa Mada Shiranai
Miyazaki's films with Studio Ghibli
Everything by Type-Moon (visual novels > anime by miles though)

A MUST SEE anime would be Sword Art Online and probably (if u dont mind romance) Clannad, u can also try Fairy Tail, Clannad After Story is quite sad 😢
And if u want a place to watch the anime u can try
[url]http://animeplus.tv[/url]
[url]http://anilinkz.com[/url]

[img]http://i1310.photobucket.com/albums/s655/pinkshippuden/e3619c82-cf8a-47fe-b99b-296318e63b6d.jpg[/img]
My full manga list: http://mangaupdates.conexionsite.com/mangalist/PinkShippuden

now and then, here and there
ef-a tale of memories and ef-a tale of melodies
angel's egg
terra e...
legend of the galactic heroes
ano hana

Seconding Noein.

Its likely not everyones type of sci-fi but if you get into it, its well worth the time spent.