Past answers by studio

Every anime the puzzle has used so far, grouped by the studio that made it. A show with two studios credited appears under both. Today's puzzle is never included. All answers by date

Madhouse (11)

• Death Note
• Frieren: Beyond Journey's End
• Hunter x Hunter
• Perfect Blue
• Black Lagoon
• Redline
• Tokyo Godfathers
• Nana
• Trigun
• Monster
• Paranoia Agent

Studio Ghibli (9)

• Spirited Away
• Howl's Moving Castle
• Princess Mononoke
• My Neighbor Totoro
• Grave of the Fireflies
• Kiki's Delivery Service
• Castle in the Sky
• Porco Rosso
• The Wind Rises

Kyoto Animation (6)

• A Silent Voice
• The Disappearance of Haruhi Suzumiya
• The Melancholy of Haruhi Suzumiya
• Violet Evergarden
• Beyond the Boundary
• Myriad Colors Phantom World

Ufotable (5)

• Demon Slayer
• Fate/stay night Unlimited Blade Works
• Fate/Zero
• The Garden of Sinners: Paradox Spiral
• Fate/stay night: Heaven's Feel III. spring song

Production I.G (4)

• Psycho-Pass
• Guilty Crown
• Ghost in the Shell
• Haikyu!!

MAPPA (3)

• Chainsaw Man
• Jujutsu Kaisen
• Kakegurui

Sunrise (3)

• Code Geass
• Gintama
• Cowboy Bebop

Gainax (3)

• The End of Evangelion
• Gurren Lagann
• Neon Genesis Evangelion

Bones (3)

• Fullmetal Alchemist: Brotherhood
• Bungo Stray Dogs
• Mob Psycho 100

David Production (3)

• JoJo's Bizarre Adventure: Stone Ocean
• JoJo's Bizarre Adventure: Stardust Crusaders
• Fire Force

Pierrot (3)

• Black Clover
• Tokyo Ghoul
• Bleach: Thousand-Year Blood War

Trigger (3)

• Kill la Kill
• Cyberpunk: Edgerunners
• Dungeon Meshi

Shaft (2)

• Puella Magi Madoka Magica
• Nisemonogatari

White Fox (2)

• Steins;Gate
• Re:Zero

A-1 Pictures (2)

• Your Lie in April
• Fate/Apocrypha

Toei Animation (2)

• One Piece
• Dragon Ball Super

OLM (2)

• Pokemon XY
• Berserk

CloverWorks (2)

• Persona 5 The Animation
• Bocchi the Rock!

Manglobe (2)

• Deadman Wonderland
• Samurai Champloo

TMS Entertainment (2)

• Fruits Basket
• Akira

J.C.Staff (2)

• Bakuman
• A Certain Scientific Railgun

Studio Khara (1)

• Evangelion: 3.0+1.0 Thrice Upon a Time

Wit Studio/CloverWorks (1)

• Spy x Family

Madhouse/Satelight/Graphinica (1)

• Hellsing Ultimate

A-1 Pictures/Satelight/CloverWorks (1)

• Fairy Tail

TNK/Passione (1)

• High School DxD

Trigger/CloverWorks (1)

• Darling in the FranXX

Madhouse/J.C.Staff (1)

• One Punch Man

Lerche (1)

• Danganronpa 3: The End of Hope's Peak High School

Arms (1)

• Elfen Lied

Wit Studio/A-1 Pictures (1)

• Kaguya-sama: Love is War

Wit Studio/MAPPA (1)

• Vinland Saga

Zero-G (1)

• Grand Blue

Kinema Citrus (1)

• Made in Abyss

Tatsunoko Production (1)

• Ping Pong the Animation

P.A.Works (1)

• Uma Musume: Pretty Derby

Science Saru (1)

• Dandadan

Brain's Base (1)

• Baccano!

OLM/P.I.C.S. (1)

• Odd Taxi

Science SARU (1)

• Look Back

Triangle Staff (1)

• Serial Experiments Lain

Topcraft (1)

• Nausicaä of the Valley of the Wind