Arknights: Endfield · Oct 5, 2026 · Challenge
Monumental Etching: Shadow Marked
Monumental Etching: Shadow Marked has ended. It ran Oct 5, 2026 – Oct 19, 2026.
Updated
At a glance
| Status | Ended |
|---|---|
| Window | Oct 5, 2026 – Oct 19, 2026 |
| Version | Version 1.5 |
| Type | Challenge |
| Source | endfield.wiki.gg |
| Checked | Oct 17, 2026 |
Rewards
- ×1,200Oroberyl
- ×90,000T-Creds
- ×30Arms INSP Kit
| Item | Quantity |
|---|---|
| Oroberyl | ×1,200 |
| T-Creds | ×90,000 |
| Arms INSP Kit | ×30 |
Description
Monumental Etching: Shadow Marked is a Version 1.5 Umbral Monument challenge event, opening October 5 and closing October 19, 2026 at 04:00 server time, so it is still open for the first days of 1.6. It runs alongside the "Marked by Dark Shadows" series.
The wiki’s mission table has eight entries at 150 Oroberyl each, 1,200 in total. Four are first Normal clears of the series’ stages (Tri-Aggelated Targeting, Feral Carnage of Shadow, Sudden Roar of Oblivion, Arc of Shadow Flare); the rest are 4 stage attempts, 1 Agony Mode attempt, 1M total damage, and 4 attempts at any stage.
Across all eight, the side rewards add up to 90,000 T-Creds, 30 Arms INSP Kits, 15 Advanced Cognitive Carriers, 24 Protohedrons, 10 Advanced Progression Selection Crate I, 6 Protosets and 6 Heavy Cast Dice.
How to take part
- 01
Meet the entry requirements
The wiki lists the main mission Chapter I Process II "Paving the Way" and Authority Level 30 or higher.
- 02
Clear the four stages on Normal
Each first clear pays 150 Oroberyl.
- 03
Finish the attempt and damage missions
Four more missions count stage attempts, one Agony Mode run and 1M damage dealt, before October 19, 2026.
Monumental Etching: Shadow Marked FAQ
- When does Monumental Etching: Shadow Marked start and end?
- Monumental Etching: Shadow Marked ran October 5, 2026 to October 19, 2026 and has ended.
- What does Monumental Etching: Shadow Marked reward?
- Its recorded rewards: Oroberyl ×1,200, T-Creds ×90,000, Arms INSP Kit ×30.
- How do I take part in Monumental Etching: Shadow Marked?
- The wiki lists the main mission Chapter I Process II "Paving the Way" and Authority Level 30 or higher. See "How to take part" above for the full 3-step rundown.