The Arknights Terra Wiki is a collaborative, community-maintained wiki. If you notice an issue, please consider making an edit, starting a discussion on the article's talk page, or reaching out via the Arknights Terra Wiki Discord.
Terra: A Journey
- Zhejiang Photographic Press (Chinese)
- Yostar Publication (Japanese, English, Korean)
- October 2023 (Chinese)
- December 2025 (Japanese, English, Korean)
- B4 (Chinese)
- A4 (Japanese, English, Korean)
- Chinese: CN¥148
- Japanese: JP¥8,800
- English: US$68
- Korean: TBA
| “ | Terra: A Journey, The Debut Work of Dr. E. E. Erikson Written for His Dear People and in Turn You The Reader, Following His Twenty-Three Years of Travel and Fifty-One-and-a-Half Years of Teaching, or "A Survey of Terra". | ” |
| —Introduction |
Terra: A Journey is the official Arknights lore compendium by Hypergryph. It compiles nearly all the details regarding the world of Terra, from culture and history to biodiversity and the nature of Originium. The book is originally written in Mandarin Chinese and will be translated into Japanese, English, and Korean by Yostar under the Yostar Publications flag, set for release in December 2025 with pre-orders available from October 24, 2025 (see links at the end of the article).
Terra: A Journey exists in the game itself as an encyclopedia written by the Victoria scholar E. E. Erikson and printed in the year 1099 by the Lateran publisher Mont-Blane Chestnut Basque. Having spent fifty-one years of lecturing in universities and then traveled across Terra for twenty-three years to explore and record various cultures, Erikson was encouraged by Kal'tsit to write down his first-handed accounts, leading to the creation of this book. She also cross-checked the contents through side notes written in cursive scripts, which would become a research material for the Rhodes Island operators.
Terra: A Journey also includes Rhodes Island's Investigation Report on the Chernobog-Lungmen Incident, a special B6, 16-page booklet given alongside a group photo of the old Reunion members as a free gift for those who bought the book. The booklet covers information surrounding the events of Act initium and I of the Main Theme, colloquially known as "the Reunion arc", from Talulah's background, the rise of Reunion, its downfall following Alina's death, to the aftermath of the Chernobog Crisis. It also provide tidbits regarding the origin of Infected resistance movements on Terra, mainly focusing on The Exemplars.
Those who pre-ordered Terra: A Journey will be given 
Footprints through a special redemption code.
Table of contents[edit]
Preface—p. IV
Chapter 1: Originium, Catastrophe, Oripathy—p. 001
- Originium—p. 002
- Originium Arts—p. 009
- Catastrophe—p. 15
- Oripathy—p. 025
Chapter 2: Technologies of Terra—p. 033
- Originium Technology—p. 034
- Industrial Technology: Nomadic Cities—p. 042
- The First Modern Nomadic City—p. 051
- Weaponry—p. 053
Chapter 3: Beasts of Terra—p. 059
Chapter 4: Races of Terra—p. 079
Chapter 5: Countries and Regions of Terra—p. 107
- Introduction—p. 108
- Victoria—p. 110
- Righeacht na Temhair: Athbhreth nó Athrá?[note 1]—p. 121
- The Great Excavation and the Mad King's Moving Castle—p. 124
- Leithanien—p. 126
- Ursus—p. 138
- Founding of the Ursus Empire—p. 151
- Chernobog—p. 153
- Gaul: Legacy—p. 156
- War of the Four Nations—p. 160
- Laterano—p. 166
- Influence of the Lateran Faith—p. 179
- Iberia—p. 182
- The Silenced Edict—p. 196
- Ægir—p. 198
- Kjerag—p. 208
- Kazimierz—p. 218
- Columbia—p. 228
- The Columbian Pioneers—p. 242
- Siesta—p. 244
- Bolívar—p. 249
- Siracusa—p. 261
- Sargon—p. 272
- The Nightzmoran Conquests—p. 280
- Minos—p. 284
- Sami—p. 293
- Rim Billiton—p. 306
- Yan: A Fair Glance—p. 315
- Lungmen: Yanese Modern Predecessor—p. 322
- Higashi: Letters From the Farthest East—p. 325
- Kazdel—p. 333
Chapter 6: Organizations in Terra—p. 347
- Rhine Lab LLC.—p. 348
- Rhine Lab LLC.: An Addendum—p. 356
- Exclusive Interview—p. 360
- Blacksteel Worldewide—p. 363
- Karlan Trade Co. Ltd.—p. 368
- Rusthammer—p. 372
- Raythean Industries—p. 377
- Sunvalley Industries—p. 382
- Penguin Logistics—p. 386
- Lee's Detective Agency—p. 389
- Rhodes Island Onboard Guide—p. 393
- Catalogue of Other Organizations—p. 409
Appendix—p. 419
- Timeline of Terran History—p. 420
- Postface—p. 423
- The Author and His Personal Communications—p. 425
Trivia[edit]
- A full Terran map could be found on the dust jacket of the book.
- On its lefthand side at the corner, Ceobe's doodling can also be seen, serving as an easter egg for Ceobe's Fungimist.
- According to E.E. Erickson, this book is either the 23rd or the 24th version, and he refused to revise it further. In a letter to Kal'tsit, found on the blank pages at the back, he mentions that the book had undergone multiple reworks and rewrites, particularly in parts of the fifth chapter. These revisions were made after receiving advice from her and Rhodes Island, as well as his own interest to further explore Sargon and Yan in the future.
- The back face of the book features a small thumbnail of an Originium shard alongside a Latin phrase: "Orisaxum edere possum; mihi non nocet," literally "I can eat Originium, it does not hurt me." This phrase comes from I Can Eat Glass, a 2004 linguistic project on the early Web by then-Harvard student Ethan Mollick.
- On the back flip of the book features a set of ITA2 Baudot code that translates to "Thanks for the Contribution of Rhodes Island and the Recorder."
- This also could be the latest instance of mentioning the Recorder, the beta character who was once mentioned in the game's beta release as well as the first ARG campaign.
See also[edit]
- Terra: A Journey on Yostar Official Store EN
- Terra: A Journey on Yostar Official Store JP
- Terra: A Journey on Yostar Official Store KR