The Thin Black Line
Last updated 2026-06-11
The Thin Black Line is an Achievement in the category Wonders of the World. To obtain this achievement, the player needs to purify an area of Overflowing Abyssal Power for the first time.
Gameplay Notes
- This achievement can be completed in multiple ways:[May be more]
- During the World Quests Wind-Stirred Ripples or Tower of Inversion in Series Nightingale's Song: Chapter I - Prelude to the Night Vigil.
- During the standalone World Quests To Turn Each Sin Against the Sinner or Reverberation of Heroic Spirits.
- During the Hidden Exploration Objective A Distant Dream of Elysium.
- By defeating enemies at one of several locations in the open-world.
Trivia
- The name of this achievement is a reference to "the thin blue line," a phrase that describes the police as the barrier between order and chaos in society. "Blue" may have been replaced with "black" as a nod to the color of the Lightkeepers' uniforms or the dark nature of the Abyss.
Other Languages
| Language | Official Name | Literal Meaning |
|---|---|---|
| English | The Thin Black Line | — |
| Chinese (Simplified) | 细细的黑线 | |
| Chinese (Traditional) | 細細的黑線 | |
| Japanese | 細い黒い線 | |
| Korean | 씬 다크 라인 Ssin Dakeu Rain | |
| Spanish | La delgada línea negra | |
| French | La ligne noire | The Black Line |
| Russian | Тонкая чёрная линия Tonkaya chyornaya liniya | |
| Thai | เส้นสีดำบาง ๆ | |
| Vietnamese | Sợi Dây Đen Mảnh | |
| German | Dünne, schwarze Fäden | Thin, Black Threads |
| Indonesian | Garis Hitam Tipis | |
| Portuguese | Linhas Finas e Escuras | |
| Turkish | Siyah İnce Çizgi | |
| Italian | La sottile linea nera |
Change History
Released in Version "Luna IV"
