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The Best Episodes of Sword Art Online Season 4

Every episode of Sword Art Online Season 4 ranked from best to worst. Discover the Best Episodes of Sword Art Online Season 4!

Binge this in 8h 49m•Peaking at 8.8/10

In the near future, a Virtual Reality Massive Multiplayer Online Role-Playing Game (VRMMORPG) called Sword Art Online has been released where players control their avatars with their bodies using a piece of technology called Nerve

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Episode Rankings

  1. #1 Fan Favorite
    Sword Art Online Season 4 Episode 14 - End to Eternity
    8.8/10(805 votes)

    S4:E14

    Despite its modest size, the Human Empire Army and Asuna valiantly battle the wave of American players surging towards them. But they’re hopelessly outnumbered, and the Human Empire soldiers start to fall one after another.

    Director:Toru Hamasaki
    Writer:Kohei Urushibara

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  2. Sword Art Online Season 4 Episode 9 - Sword and Fist
    8.7/10(718 votes)

    S4:E9

    Upon seeing Alice, Gabriel orders his entire army to capture her. The pugilists guild races ahead of the main force. As Alice and Bercouli try to come up with a strategy to counter them, the silent Integrity Knight Sheyta Synthesis Twelve steps forward.

    Director:Hiroshi Kimura
    Writer:Kohei Urushibara

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  3. Sword Art Online Season 4 Episode 18 - Memories
    8.6/10(705 votes)

    S4:E18

    Sinon manages to severely damage Gabriel, but her strength has been sapped. Leafa collapses after wiping out the American players. And Asuna, her situation now hopeless, gazes at Kirito. But the Black Swordsman continues to wander through his dreams.

    Director:Yuya Horiuchi
    Writer:Muneo Nakamoto

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  4. Sword Art Online Season 4 Episode 6 - Battle of the Knights
    8.5/10(690 votes)

    S4:E6

    The Final Load Test has begun, and the Eastern Gate has collapsed. Incited by Gabriel, now Emperor Vecta, the massive army of the land of darkness pushes on towards the Human Empire.

    Director:Takuma Suzuki
    Writer:Yukito Kizawa

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  5. Sword Art Online Season 4 Episode 12 - Ray of Light
    8.4/10(667 votes)

    S4:E12

    Due to Gabriel's scheme, U.S. players were given black knight accounts, and are now continuously logging in to the Underworld. They begin mercilessly slaughtering soldiers from both the Human Empire Army and the Dark Territory Army.

    Directors:Shunsuke Nakashige, Kenji Seto
    Writer:Muneo Nakamoto

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  6. Sword Art Online Season 4 Episode 20 - The Night-Sky Blade
    8.4/10(655 votes)

    S4:E20

    Alice and Asuna head to the World’s End Altar as Kirito confronts Gabriel. Unless he can defeat Gabriel and return to the real world before the maximum-acceleration phase begins, Kirito will have to spend the next 200 years in the Underworld.

    Director:Masakazu Obara
    Writer:Muneo Nakamoto

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  7. Sword Art Online Season 4 Episode 8 - Blood and Life
    8.3/10(604 votes)

    S4:E8

    The powerful formal art unleashed by the Integrity Knight Alice inflicts severe casualties on the forces of darkness. Alice encounters an enemy survivor and learns that Emperor Vecta's objective is to find the "Priestess of Light."

    Director:Shunsuke Nakashige
    Writer:Muneo Nakamoto

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  8. Sword Art Online Season 4 Episode 19 - Awakening
    8.3/10(633 votes)

    S4:E19

    Escaping his nightmares, Kirito regains consciousness at last. With the Night-Sky Blade in his right hand and the broken Blue Rose Sword in his left, he faces off against Vassago, armed with the Mate-Chopper, now enormous in size.

    Director:Shunsuke Nakashige
    Writer:Kohei Urushibara

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  9. Sword Art Online Season 4 Episode 7 - Stigma of the Disqualified
    8.1/10(596 votes)

    S4:E7

    Integrity Knight Renly Synthesis Twenty-Seven, in battle for the first time, flees his position, allowing goblins from the forces of darkness to infiltrate to the tent where Kirito is.

    Director:Yuya Horiuchi
    Writer:Kohei Urushibara

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  10. Sword Art Online Season 4 Episode 11 - Heartless Choice
    8.1/10(613 votes)

    S4:E11

    Asuna has created a bottomless chasm. The dark knights and the pugilists attempt to cross over to the other side, where the Human Empire Army waits. Meanwhile, Critter releases an announcement about a limited-time beta test for a bizarre new VRMMO.

    Director:Akira Yamada
    Writer:Muneo Nakamoto

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  11. Sword Art Online Season 4 Episode 1 - In the Far North
    8.0/10(698 votes)

    S4:E1

    Six months have passed since the fierce battle against Administrator. Alice has brought Kirito to her childhood home, Rulid Village, where they live peacefully. Gazing out at the world that she saved with Kirito, Alice reflects on all that’s happened.

    Director:Takashi Sakuma
    Writer:Muneo Nakamoto

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  12. Sword Art Online Season 4 Episode 10 - Stacia, the Goddess of Creation
    8.0/10(622 votes)

    S4:E10

    Asuna has logged into the Underworld using the superuser account of Stacia, the Goddess of Creation. After she descends, she is reunited with Kirito, thanks to Ronie and Tiese. But soon Alice arrives, leading to a precarious situation!

    Director:Takashi Sakuma
    Writer:Kohei Urushibara

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  13. Sword Art Online Season 4 Episode 17 - Prince of Hell
    7.9/10(573 votes)

    S4:E17

    Asuna and the others succumb to Vassago and the Chinese/Korean players. Discovering the catatonic Kirito, Vassago kicks his wheelchair over. Enraged, Klein lunges at Vassago, only to be pinned down by enemy players. Just then, someone unexpected appears.

    Director:Akira Yamada
    Writer:Muneo Nakamoto

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  14. Sword Art Online Season 4 Episode 2 - Raids
    7.8/10(625 votes)

    S4:E2

    A force from the Dark Territory is attacking Rulid Village. Though she’d lost her purpose in battle, in order to fight for her family, and for the people that Kirito and Eugeo tried to protect, Alice takes up the Osmanthus Blade once again!

    Director:Takehiro Miura
    Writer:Muneo Nakamoto

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  15. Sword Art Online Season 4 Episode 4 - Dark Territory
    7.8/10(613 votes)

    S4:E4

    Shasta, commander of the Dark Territory's dark knights, had intended to use Administrator's death as a chance for peace with the Human Empire. But his plans are thwarted by Emperor Vecta's return to the land of darkness.

    Directors:Takashi Sakuma, Naomi Nakayama
    Writer:Yukito Kizawa

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  16. Sword Art Online Season 4 Episode 5 - The Night Before Battle
    7.8/10(602 votes)

    S4:E5

    Resolved to fight for humankind, Alice joins the forces of the Human Empire, bringing Kirito with her. But while the forces of darkness boast overwhelming numbers, only thirteen Integrity Knights are available to fight for the Human Empire.

    Director:Tomohisa Onoue
    Writer:Yukito Kizawa

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  17. Sword Art Online Season 4 Episode 13 - The War of Underworld
    7.8/10(606 votes)

    S4:E13

    Sinon has logged in with the super-account of Solus, the Sun Goddess and rescues Asuna and the others at the last minute. Meanwhile, Leafa logs in with the super-account of Terraria, the Earth Goddess, and descends to the Underworld.

    Director:Masakazu Obara
    Writer:Kohei Urushibara

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  18. Sword Art Online Season 4 Episode 15 - Instigation
    7.7/10(554 votes)

    S4:E15

    Bercouli pursues Vecta, who’s abducted Alice. After a long, vicious battle, Bercouli unleashes his secret sword skill, Uragiri, and finally defeats Vecta, despite having sustained severe injuries himself.

    Director:Takehiro Miura
    Writer:Muneo Nakamoto

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  19. Sword Art Online Season 4 Episode 23 - New World
    7.7/10(575 votes)

    S4:E23

    Rinko informs Kazuto that Alice is missing. He’s about to rush to the Rath Roppongi branch when the doorbell rings. In a panic, Kazuto throws open the door, only to find a deliveryman there with a huge cardboard box.

    Director:Takashi Sakuma
    Writer:Muneo Nakamoto

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  20. Sword Art Online Season 4 Episode 3 - The Final Load Test
    7.6/10(604 votes)

    S4:E3

    The mysterious group that attacked the Ocean Turtle turns out to be a secret unit under orders from the U.S. National Security Agency. And its leader, Gabriel, has battled Kirito and Sinon before.

    Director:Hiroshi Kimura
    Writer:Muneo Nakamoto

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  21. Sword Art Online Season 4 Episode 22 - Alice
    7.6/10(538 votes)

    S4:E22

    The “Rath Attack Incident,” masterminded by the American National Security Agency, is over. Now head of the newly formed Oceanic Resource Exploration & Research Institution, Rinko unveils Alice to the world as an authentic artificial general intelligence.

    Director:Akira Yamada
    Writer:Muneo Nakamoto

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  22. Sword Art Online Season 4 Episode 16 - Code 871
    7.5/10(548 votes)

    S4:E16

    The traitor inside Rath turns out to be a researcher named Yanai. When Higa attempts to restore Kirito, Yanai tries to thwart the operation by holding him at gunpoint. Meanwhile, in the Underworld, Sinon confronts Gabriel, who has logged back in.

    Director:Takashi Sakuma
    Writer:Kohei Urushibara

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  23. Sword Art Online Season 4 Episode 21 - Beyond Time
    7.4/10(537 votes)

    S4:E21

    The maximum-acceleration phase has begun. Alice successfully logs out of the Underworld, but Kirito doesn’t make it in time. In the real world, Higa and Kikuoka rush to shut down the STL, in order to disable the maximum-acceleration phase, but…

    Director:Tomonari Tanaka
    Writer:Muneo Nakamoto

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Season 4 Ratings Summary

"End to Eternity" is the best rated episode of "Sword Art Online" season 4. It scored 8.8/10 based on 805 votes. Directed by Toru Hamasaki and written by Kohei Urushibara, it aired on 7/19/2020. This episode is rated 0.1 points higher than the second-best, "Sword and Fist".