Arknights: Endfield is really looking to set itself as the new star in town when it comes to gacha games, and the latest release proves that it’s more than a simple adventure RPG.
With new systems and endgame activities being introduced regularly, the game keeps expanding the ways players can test their teams, gather rewards, and challenge themselves beyond the main story. One of the latest additions is Umbral Monument, a mode designed to push your operators to their limits. Here’s how to make the most of it.
What is Umbral Monument
Umbral Monument is a permanent, high-difficulty combat mode in Arknights: Endfield that functions as a proving ground for advanced team compositions. Instead of focusing on exploration or resource gathering, the mode is entirely built around challenging battles that test how well your squad works together.
The content is organized into periodic updates known as “Series.” Each Series contains multiple combat stages, and every stage must be completed within a strict 10-minute time limit. Because of this structure, efficiency and proper team building become essential, as simply surviving is not enough. You need to clear encounters quickly while managing abilities and positioning effectively.
Unlike other activities such as Etchspace Salvage or Delver of the Deep, Umbral Monument leans fully into combat optimization. It is meant to act as a controlled environment where players experiment with strategies, refine their builds, and see how their operators perform under pressure.
Umbral Monument Series Schedule
The Umbral Monument operates on a schedule where new challenges are introduced periodically. Content remains permanently available once released, but limited-time rewards are often tied to the debut of a new Series.
| Series | Release Date | Status |
|---|---|---|
| Those Forsaken by the Land | February 12, 2026 | Available |
| Inorganic Construct | February 22, 2026 | Available |
| Searing Scars | March 26, 2026 | Upcoming |
How to Unlock Umbral Monument
Unlocking the Umbral Monument requires reaching Authority Level 30 and completing the main story mission “Chapter I Process II: Paving the Way”. Once these milestones are met, players must track the “Umbral Monument” mission from their quest list, which directs them to the Valley IV Hub Base. By visiting the second floor of the hub and speaking with the NPC Sergio Leon, players finalize the unlock sequence and gain full access to the mode’s combat menu.
Best Team Compositions for Umbral Monument Mode
Success in the Umbral Monument is dictated by how well your team composition counters the current stage mechanics. Below are the recommended team archetypes for the latest series challenges.
- Avywenna Premium Team: Avywenna, Arclight, Perlica, Gilberta
- Yvonne Cryo Team: Yvonne, Last Rite, Xaihi, Fluorite
- Laevatain Hypercarry Team: Laevatain, Wulfgard, Akekuri, Ardelia
- Physical Team: Endministrator, Chen Qianyu, Pogranichnik, Lifeng
- Last Rite Hypercarry Team: Last Rite, Xaihi, Fluorite, Ardelia
- F2P Team: Endministrator, Chen Qianyu, Akekuri, Ardelia
Umbral Monument Rewards
Rewards are categorized into first-time clear bonuses and prestige-based medals.
- First-Clear Loot: Clearing stages for the first time rewards players with T-Creds, Mark of Perseverance, Advanced Cognitive Carriers, Arms INSP Sets, and Protohedrons.
- Engraved Medals: Completing an entire Series in Normal mode awards a unique Engraved Medal. Clearing the same Series in Agony mode trims the medal as a mark of prestige.
- Monumental Etching (Old Wounds): This is a limited-time event that runs alongside new updates, allowing players to earn Oroberyl by completing specific tasks like dealing cumulative damage in Agony mode or clearing specific stages.
Final Thoughts
Umbral Monument represents a departure from standard linear progression, serving as a mode where the roster must actively perform rather than follow a predetermined path. While it is true that Arknights: Endfield’s broader gameplay focuses on accessible exploration and a linear, narrative-driven structure—similar to titles like Genshin Impact and Wuthering Waves—this new environment puts it closer to tactical titles like Final Fantasy Tactics, Tactics Ogre, and Divinity.
What does that mean? In short, you’ll have to think. A lot. And then rethink—also a lot. This is because even the most veteran gacha players recognize that “tactical team building” often means finding one party composition that kills everything in fewer and fewer moves—and they stick to it.
Not this time. Umbral Monument turns the entire gacha premise on its head by showing you that your “perfect party build” can be easily countered, requiring you to work on several strategies to approach the mode’s ever-changing parameters. It is not for the lazy or the faint of heart, and that is exactly what makes it a true endgame challenge.
Arknights: Endfield is available as a free-to-play game (though microtransactions are present here and there) on PlayStation 5, Windows (via the official site or the Epic Games Store), iOS, and Android devices.
