In the land of Terra, natural disasters of unknown causes have been occurring irregularly in many areas. Therefore, the majority of the people, in order to escape those natural disasters, came to live in mobile cities developed over the years. The Originium left behind at the site of such Catastrophes, has led to the rapid progress of civilization due to their immense energy. But it also brought something else with it — an incurable disease called Oripathy.
 
Because the bodies of those with Oripathy gradually crystalize and become a new source of infection at the time of death, in many countries, the Infected are subject to persecution under regimes of segregation and forced labor. Those who were oppressed by the governments are starting to rebel. Rhodes Island, a pharmaceutical company researching a cure for Oripathy, takes up their arms and starts a conquest trying to save all the people from the disease.
 
(Source: Official Site, translated, edited)

Assorted commercials for the mobile game Arknights. These short animations aired on TV and were posted to Arknights YouTube channel, while additionally shared via Twitter, advertising the game and associated events after its Japan launch. 
 
The list of the commercials are as follows (note that CMs without animation are not present and, for the ones with long and short versions, the longer version is taken into consideration)
 
1) Official Animation Trailer (アニメPV) [7 January 2020] 
2) Grani and the Knights’ Treasure (騎兵と狩人) [30 January 2020] 
3) EP05 Necessary Solutions (第五章「快刀乱麻」) [5 March 2020] 
4) Operational Intelligence (戦地の逸話) [25 March 2020] 
5) Heart of Surging Flame (青く燃ゆる心) [21 April 2020] 
6) Code of Brawl (喧騒の掟) [25 May 2020] 
7) Partial Necrosis (第六章「局部壊死」) [22 June 2020] 
8) Ancient Forge (洪炉示歳（エンシェントフォージ）) [22 July 2020] 
9) Stories of Afternoon (午後の逸話) [25 August 2020] 
10) Children of Ursus (ウルサスの子供たち) [25 September 2020] 
11) Twilight of Wolumonde (ウォルモンドの薄暮) [22 October 2020] 
12) Darknights Memoir (闇夜に生きる) [8 December 2020] 
13) The Birth of Tragedy (第七章「苦難揺籃」) [24 December 2020] 
14) Heart of Surging Flame - Rerun (復刻「青く燃ゆる心」) [18 January 2021] 
15) The Great Chief Returns (帰還！密林の長) [19 February 2021] 
16) Rewinding Breeze (在りし日の風を求めて) [22 March 2021] 
17) Maria Nearl (マリア・ニアール) [5 April 2021] 
18) Roaring Flare (第八章「怒号光明」) [21 April 2021] 
19) Mansfield Break (孤島激震) [18 June 2021] 
20) Beyond Here (彼方を望む) [2 July 2021] 
21) Who Is Real (画中人) [22 July 2021] 
22) Operation Originium Dust (オペレーション オリジニウムダスト) [13 August 2021] 
23) A Walk in The Dust (遺塵の道を) [28 September 2021] 
24) Under Tides (潮汐の下) [15 October 2021] 
25) Preluding Lights (灯火序曲) [6 December 2021] 
26) Dossoles Holiday (ドッソレスホリデー) [9 January 2022] 
27) Stormwatch (第九章「暴風眺望」) [15 March 2022] 
28) Pinus Sylvestris (赤松林) [11 April 2022] 
29) Near Light (ニアーライト) [21 April 2022] 
30) Break the Ice (風雪一過) [27 June 2022] 
31) Invitation to Wine (将進酒) [23 July 2022] 
32) A Light Spark in Darkness (闇散らす火花) [16 August 2022] 
33) Guide Ahead (吾れ先導者たらん) [13 September 2022] 
34) Shatterpoint (第十章「光冠残蝕」) [17 October 2022] 
35) Stultifera Navis (狂人号) [21 October 2022] 
36) Lingering Echoes (塵影に交わる残響) [23 December 2022] 
37) Ideal City: Endless Carnival (理想都市-エンドレスカーニバル-) [7 January 2023] 
38) Dorothy's Vision (翠玉の夢) [10 March 2023] 
39) An Obscure Wanderer (夕景に影ありて) [27 March 2023] 
40) Return to Mist (第十一章「淬火煙塵」) [24 April 2023] 
41) IL Siracusano (シラクザーノ) [15 May 2023] 
42) What The Firelight Casts (この炎が照らす先) [10 June 2023] 
43) Where Vernal Winds Will Never Blow (登臨意) [22 July 2023] 
44) A Death in Chunfen (春分) [18 August 2023] 
45) All Quiet under the Thunder (第十二章「驚靂蕭然」) [20 October 2023] 
46) Lone Trail (孤星) [4 November 2023] 
47) Hortus de Escapismo (空想の花庭) [18 December 2023] 
48) KFCコラボ [13 January 2024] 
49) So Long, Adele: Home Away From Home (火山と雲と夢色の旅路) [13 January 2024] 
50) The Black Forest Wills A Dream (樹影にて眠る) [23 February 2024] 
51) Come Catastrophes or Wakes of Vultures (ダーティマネー) [15 March 2024] 
52) The Whirlpool that is Passion (第十三章「悪兆渦流」) [12 April 2024] 
53) Zwillingstürme im Herbst (ツヴィリングトゥルムの黄金) [23 April 2024] 
54) The Rides to Lake Silberneherze (銀心湖鉄道) [18 June 2024] 
55) To the Grinning Valley (ニヤニヤ谷へ) [5 July 2024] 
56) Here A People Sows (懐黍離) [27 July 2024] 
57) Operation Lucent Arrowhead (オペレーション ルーセントアローヘッド) [2 September 2024] 
58) Babel (バベル) [8 October 2024] 
59) Absolved Will Be the Seekers (第十四章「慈悲光塔」) [26 October 2024] 
60) Path of Life (生存航路) [29 November 2024] 
61) Adventure That Cannot Wait for the Sun (太陽すらも追い越して) [12 January 2025] 
62) A Kazdelian Rescue (溶炉『還魂』 譚) [4 February 2025] 
63) Ending a Grand Overture (落日の向こうへ) [4 April 2025] 
64) I Portatori dei Velluti (幕開く者たち) [19 April 2025] 
65) Exodus from the Pale Sea (白き海の彼方へ) [30 May 2025] 
66) Such is the Joy of Our Reunion (相見歓) [9 July 2025] 
67) See You Soon (また明日) [4 August 2025] 
68) When Elegies Are Ashes (挽歌が灰に還る時) [25 August 2025] 
69) Dissociative Recombination (第十五章「解離結合」) [12 September 2025] 
70) The Masses' Travels (命ある者の旅) [7 October 2025] 
71) Act or Die (緋染めのビロード) [10 November 2025] 
72) Fantasy in the Mirage (鏡中集) [9 December 2025] 
73) Ato (墟) [10 January 2026] 
74) Abnormal Spectrum (第十六章「背理分光」) [17 March 2026] 
75) Retracing Our Steps 1101 (聖山降臨1101) [8 April 2026]

Music video for Chapter 6, based on the final fight between Rhodes Island and FrostNova. This song was produced by Steve Aoki, featuring RUNN.

The official comic anthology of Arknights, published by Ichijinsha.
 
Features LGD shenanigans with Ch'en and Swire fighting, Silverash siblings, Penguin Logistics doing what they do best - everyday troubles and day-to-day life at Rhodes Island!
 (Source: Ichijinsha, translated)

Music video for Chapter 7, based on the final fight between Rhodes Island and Patriot. The song was produced by Steve Aoki and Yellow Claw, featuring RUNN. 

A special animation made by Yostar Pictures to celebrate Arknights 1st Anniversary (outside of China).

The popular four-panel comic strips from the official Arknights Twitter account have finally been collected into a book!
 
In addition to the individual episodes of the 22 operators, the stories "The Great Chief Returns", "Mansfield Break", "Under Tides", and other event comics are also included. This is a must-have book for fans, to help you find the operator who is just right for you!
 
(Source: REX Comics, translated)

Animated shorts showing the daily life on Rhodes Island.
 
Note: Includes 1 extra episode that was shown as a preview for the series on the Chinese 2nd Anniversary Special Live Stream

A mysterious man by the name of Lee dwells with Aak, Hung, and Waai Fu in the dark alleyways of Lungmen City. Styling themselves as Lee's Detective Agency, they strove to run errands, investigate mysteries, and mediate disputes for their neighbors. Herein lists a few of their actual yet strange cases to go with your tea.
 
(Source: Crunchyroll)

Animated music video for the song Untitled World. It was released on July 1st 2020 on the official japanese Youtube account in commemoration of the 1st chinese anniversary of the game. One day later it was uploaded on Arknights' global Youtube.

Music video for the event "Dossoles Holiday". This song was produced by Rad Cat.

Arknights official comic featuring daily life of Blacksteel members, Vanilla, Jessica, Liskarm and Franka, who joined Rhodes Island for the first time. It also elaborates the relationship between Franka and Liskarm since the former's Infection after the Ironforge Originium leakage incident in Columbia.

The newbie police officers Fang, Beagle, and Kroos were ordered to go to the slums of the Infected in the trading city of Tkaronto to do an internship. Although initially they had problems because of the crowdedness and other conflicts, they get accustomed to this and make friends with the Infected. While the end of their half-year internship, that would make them proper police officers, is nearing, a Catastrophe is quietly approaching the city of Tkaronto...
 
(Source: Official Site, translated)
 
Note: Chapter count includes one prologue and two bonus chapters.

Ifrit met an uninvited guest at Rhodes Island: Dalia. Ifrit, Silence, and Saria can see the shadows of their past in Dalia's appearance. This causes them to start recalling their memories of what previously happened...
 
(Source: Official Site, translated)

This is a collection of files regarding the daily lives of Rhodes Island's operators as they relate to food. May the smells of the kitchen warm our hearts and guide us true on the road ahead. The past is gone, it's good for now.
 
(Source: Official Website)
 
Notes: 
- The Chapter count includes the two volume-bonus chapters "Shio Butter Cake to Amai Kourin" and "Daichi no Plate to Rhodes no Chief Engineer". 
- Rhodes Kitchen - Tidbits had a simultaneous release in both Chinese and Japanese. Although both versions got a print release announced on the respective official Arknights social media accounts after the tenth and last regular chapter, the two volumes were released in Japan on May 15th, 2023, ahead of China, where both volumes released on December 9th 2023.

Get to know the operators on Rhodes Island with Amiya and the Doctor.
 
(Source: Hypergryph, translated)

Animated music video for the song Running In The Dark by MONKEY MAJIK, first premiered during Arknights CN 3.5 anniversary livestream. 

Note: After the stream, it was uploaded separately on the Arknights Bilibili page on October 23, 2022, and later uploaded on the MONKEY MAJIK YouTube channel on October 28, 2022.

Oripathy, an incurable disease that slowly crystallizes the bodies of those infected until their deaths.
 
Rhodes Island is a pharmaceutical company that endeavors to find a cure and solve the problems that follow in the disease's wake,
and in an attempt to put a stop to the revolt of the terrorist organization known as Reunion Movement whose ultimate goal is the salvation of the Infected,
Rhodes Island has formed a contract with the Yanese city of Lungmen and continues its mission there.
 
However, Amiya has found herself despondent since their battle against Skullshatterer, unable to accept the fact they were unable to save Misha.
 
In the meantime, Rhodes Island deploys a reconnaissance squad to an abandoned city discovered in the Lungmen countryside.
There, the squad notices a strange phenomenon unfolding before them…

Animated music video featuring Suzuran shown on the second day of the "Arknights 3rd Anniversary Fes. Thank you, Doctor".

Animated music video for the third anniversary event "Ideal City". The song is performed by the singer Aviella.

Messenger Angelina receives a request from Rhodes Island: Recover the data from the infection monitors of all the Rhodes Island operators that have been out in the field. And so she embarks on a journey that will cover almost the entire land of Terra. During her travels, she will have all sorts of encounters. Whether they are joyous, emotional, or troublesome, Angelina will not back down from the challenges. As they are what propels her on her journey.
 
(Source: Official site, translated)

One, two, one, two, line up! Bow! Welcome! Hello, Doctor, I'm Beanstalk, and as of today, the Metal Crab Café is officially open for business in Rhodes Island, staffed by my adorable crew, including Rock, Hercules, and... Those three? You mean little Kay, Bubble, and Popukar? No, no, they're not staff, they're... Well, you'll find out when you come and have a cup of coffee!
 
(Source: Bilibili, translated)

Animated music video for the song Ashen by My First Story, first premiered during Arknights CN 4.5 anniversary livestream. 

Note: After the stream, it was uploaded separately on the Arknights Bilibili page on October 23, 2023.

These strings shall sound the notes of a soul.
 
(Source: Arknights)

The silver edge is unsheathed and Karlan takes its first steps.
 
(Source: Arknights)

Even siblings have different tastes.
 
(Source: Official Site)

Promotional video directed by Yakumo Crack shown at the end of the Arknights 2024 Spring Festival Gala.

Theresa was assassinated and the Tower of Babel fell. After the nameless soldiers involved in the core assassination mission were eliminated, W's anger was not extinguished yet. Next on the revenge list is a team of Sarkaz mercenaries who provided assistance outside the assassination operation. They were escorting "something" and fleeing to the border...
 
This is a memory that W has never mentioned.
 
It is the epitome of the Sakazi's struggle to survive the long war - the victim will pick up the dagger of the victimizer, and the cycle of destiny will continue.
 
(Source: Bilibili, translated)

May the fireworks of home light your way back.
 
(Source: Official Site)

WE'RE LIVE! Join the most professional & fan-favorite streamer to explore Terra! Live stream mishaps? Not a chance!

Promotional video directed by Yakumo Crack for the 2024 Arknights Ambience Synesthesia concert.

Rebel fangs defy order, price paid with raging fire.
 
(Source: Yostar)

Promotional video directed by TOMATO shown as part of the Arknights 2025 Spring Festival Gala.

Is this something more solid than a memory?
 
(Source: Official Site, translated)

Theater and death dance together, the truth is hidden behind applause.
 
(Source: Official Site, translated)

Three meals today, posterity tomorrow, all in reverie.
 
(Source: Official Site)

When the dust settles, the Elite emerge.
 
(Source: Official Site)

Lots of dishes, lots of people, and lots of time.
 
(Source: Official Site, translated)

Power struggles beneath the yellow sands, flames within the azure eyes.
 
(Source: Official Site, translated)

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