Arknights: Endfield ‘Sketches of Lost Heirlooms’ Update Expands Talos-II with New Characters, Story Content, and Endgame Challenges

The highly anticipated Arknights: Endfield ‘Sketches of Lost Heirlooms’ update has officially arrived, bringing a major expansion to GRYPHLINE’s ambitious 3D industrial RPG. As one of the biggest content updates since launch, this version introduces a brand-new region, additional story chapters, two playable characters, a challenging endgame mode, and numerous quality-of-life improvements designed to enhance both combat and factory management.

For players exploring the vast world of Talos-II, Arknights: Endfield ‘Sketches of Lost Heirlooms’ represents another significant step forward in the game's ongoing evolution. The update reflects the developers’ commitment to refining gameplay systems while expanding the narrative depth that has become a hallmark of the Arknights franchise.

A New Chapter Begins in Sword Vault Dale

One of the most exciting additions in Arknights: Endfield ‘Sketches of Lost Heirlooms’ is the introduction of Sword Vault Dale, a previously inaccessible region hidden within the frontier lands of Talos-II.

This mysterious location was once lost to history but has now re-emerged, opening new opportunities for exploration and discovery. Players will traverse ruined structures, floating cliffs, ancient pathways, and forgotten landmarks while investigating the secrets surrounding the legendary Lost Heirlooms.

The new storyline places players alongside the Wuling Watch, an organization deeply connected to the mysteries hidden within Sword Vault Dale. Throughout the campaign, Endministrators will uncover fragments of forgotten history while facing new dangers lurking among the ruins.

The environment itself showcases some of the game's strongest visual design yet. Massive stone structures, overgrown landscapes, and dramatic vertical terrain help create a sense of wonder that reinforces the importance of this newly discovered territory.

New Story Content Expands the Arknights Universe

Storytelling has always been a major strength of the Arknights franchise, and Sketches of Lost Heirlooms continues that tradition.

The update expands the lore of Talos-II through multiple narrative events, character-focused storylines, and world-building elements that reveal more about the conflicts shaping the planet.

Players can expect emotional character arcs, political intrigue, and hidden connections that tie directly into the broader narrative of Arknights: Endfield.

Rather than functioning as a standalone side story, the new content serves as an important continuation of the game's overarching plot, making it essential for fans interested in the deeper mysteries of the Endfield universe.

Mi Fu Joins the Roster

The first new playable character arriving with Arknights: Endfield ‘Sketches of Lost Heirlooms’ is Mi Fu, a key figure within the Wuling Watch.

As the captain of the organization, Mi Fu plays a central role in the update’s storyline. Her personal narrative event, A Fistful of Reflections, follows her pursuit of vengeance against former masters who shaped her troubled past.

In combat, Mi Fu specializes in aggressive close-range engagements.

Mi Fu Combat Features

• Physical Guard class

• High mobility combat style

• Up to four consecutive basic attacks

• Fast combo execution

• Seamless skill chaining

• High burst damage potential

Her design rewards active gameplay and precise timing. Players who enjoy maintaining offensive momentum will likely find Mi Fu to be one of the most satisfying additions to the current roster.

The ability to chain Battle Skills directly into Ultimate abilities allows her to maintain constant pressure against enemies, making her particularly effective during difficult encounters where sustained damage output is crucial.

Camille Arrives Later in the Update

Following Mi Fu's release, players will gain access to another new character: Camille.

Unlike Mi Fu's revenge-driven storyline, Camille's narrative focuses on criminal investigations and internal security operations.

As a dedicated Keeper for Seš'qa, Camille is tasked with solving complex criminal cases. His featured event, Danse Macabre, begins with the discovery of an anonymous blood sample and gradually develops into a darker and more intricate investigation.

Camille Combat Features

• Heat Vanguard class

• Team support specialization

• Accelerates squad skill rotations

• Enhances combo attack effectiveness

• Improves overall team efficiency

Camille provides valuable utility for players seeking stronger team synergy rather than pure damage output.

His abilities allow squads to access skills more frequently, creating opportunities for advanced team compositions that can maximize overall battlefield performance.

Contingency Contract Makes Its Endfield Debut

Perhaps the most exciting gameplay addition for veteran players is the arrival of Contingency Contract.

This fan-favorite mode originally became famous within the broader Arknights franchise due to its highly customizable difficulty system.

Now officially adapted for Arknights: Endfield, Contingency Contract serves as the game's premier endgame challenge.

Instead of simply increasing enemy health or damage, players can activate special modifiers that fundamentally change combat conditions.

Key Features of Contingency Contract

• Customizable difficulty settings

• Positive and negative battlefield modifiers

• Strategic risk-reward decisions

• Increased challenge rewards

• High replayability

• Endgame-focused progression

Players must carefully select modifiers known as Test Criterion and Key Criteria, each introducing unique restrictions or advantages.

Success depends less on raw character strength and more on strategic planning, squad composition, and tactical execution.

For many experienced players, Contingency Contract is expected to become the ultimate test of mastery within Arknights: Endfield.

Improved Industrial Automation Systems

Factory management remains one of Endfield’s defining gameplay features, and the latest update introduces several improvements designed to reduce micromanagement.

The most significant addition is the Backup Power system.

Previously, factory disruptions could cause production chains to stall, forcing players to spend time manually restoring efficiency. Backup Power helps mitigate these issues by providing additional safeguards against operational failures.

The update also introduces automated blockage handling for multiple recipes.

These systems significantly reduce the amount of repetitive maintenance required to keep industrial operations running smoothly.

Industrial Automation Improvements

• Backup Power functionality

• Reduced factory blackouts

• Automated production blockage management

• Improved production stability

• Less manual intervention required

These enhancements allow players to spend more time exploring, fighting, and progressing through story content rather than constantly monitoring production lines.

Faster Progression and Inventory Management

Community feedback has heavily influenced many of the quality-of-life additions included in Sketches of Lost Heirlooms.

Several highly requested features now help streamline progression systems and reduce unnecessary menu navigation.

New Progression Features

Bulk Artificing

Players can now craft multiple pieces of gear simultaneously, dramatically reducing time spent managing equipment upgrades.

Weapon Batch Dismantling

Large inventories can be processed much more efficiently through batch dismantling tools.

Lock Management

Inventory organization becomes significantly easier with improved lock functionality.

Perfect Match Label

The new label system helps players identify optimal farming targets for essence collection, making progression more efficient.

Together, these improvements create a smoother gameplay experience while reducing repetitive tasks.

User Interface Enhancements

The development team has also introduced several interface upgrades aimed at improving gameplay clarity and accessibility.

Major UI Improvements

• Better off-screen enemy attack indicators

• Improved combat awareness

• Seamless controller switching

• Instant keyboard and mouse transition

• Refined menu navigation

• Updated Daily Task system

One particularly notable improvement is the enhanced warning system for off-screen attacks.

During intense combat encounters, players can now react more effectively to threats originating outside their immediate field of view.

Meanwhile, platform flexibility has improved considerably through seamless input switching, making transitions between controller and keyboard controls virtually effortless.

Why This Update Matters

Since its launch in January 2026, Arknights: Endfield has continued expanding beyond its origins as a spin-off of the massively successful Arknights franchise.

By combining real-time action combat, strategic squad management, exploration, and industrial automation, Endfield has established a distinct identity within the RPG genre.

Arknights: Endfield ‘Sketches of Lost Heirlooms’ further strengthens that identity.

The update doesn't simply add content—it also addresses long-standing player feedback while improving several core gameplay systems.

The combination of a new region, compelling storylines, additional characters, challenging endgame content, and extensive quality-of-life improvements makes this one of the most comprehensive updates the game has received so far.

Final Thoughts

The Arknights: Endfield ‘Sketches of Lost Heirlooms’ update delivers meaningful content across nearly every aspect of the game. Sword Vault Dale offers fresh exploration opportunities, Mi Fu and Camille introduce new strategic possibilities, and Contingency Contract provides a challenging endgame experience for veteran players.

Combined with substantial factory management improvements, progression streamlining, and user interface enhancements, the update demonstrates GRYPHLINE's ongoing commitment to improving the player experience.

Whether you're returning to Talos-II after a break or actively progressing through the latest content, Arknights: Endfield ‘Sketches of Lost Heirlooms’ stands as one of the most important updates in the game's post-launch roadmap, offering new adventures, deeper challenges, and a richer world to explore.