Key Takeaway
– Sword Vault Dale opens in Version 1.3, linking Endfield lore with Chi Xiao references and expanding the base game narrative.
– Mi Fu and Camille join as two new 6-star Operators (Mi Fu: high-mobility burst guard; Camille: first male 6-star Heat Vanguard) with unique kit mechanics.
– Contingency Contract debuts in Endfield, adding a high-difficulty endgame challenge alongside bulk QoL improvements (bulk forging/dismantling and lock management).
Arknights: Endfield Version 1.3 Sketches of Lost Heirlooms overview
The official notes announce a June 5, 2026 launch for Arknights: Endfield Version 1.3 “Sketches of Lost Heirlooms,” with a full picture confirmation from Gryphline’s special program. Key new elements include a sub-region named Sword Vault Dale, two new six-star Operators Mi Fu and Camille, the debut of Contingency Contract mode, and a batch of factory system improvements. There’s lots to take in, and the wording keeps things tight yet expansive, so players can anticipate what unfolds in this update.
New sub-region Sword Vault Dale and lore tie-ins
The freshly introduced Sword Vault Dale opens up within Version 1.3 as an ancient zone resurfaced after Wuling’s efforts to clear the Erosion Tide. Fans of the original Arknights will notice Chi Xiao references woven through this area, with Gryphline positioning Sword Vault Dale to bridge Endfield’s narrative with the base game’s lore, offering a connective thread that expands the universe while preserving core lore threads. The tone remains narrative yet accessible, inviting exploration and discovery across a region that feels steeped in history and mystery.
Mi Fu: a high-mobility six-star physical guard
Mi Fu is described as a 6-star physical guard who serves as the patrol captain of the Wuling Watch. Gryphline’s program marks her as a high-mobility burst fighter capable of chaining up to four basic attacks before entering her Battle Skill sequence. Her skill Qingbo Triplex includes three moves: Cloudtrapper pulls nearby enemies in or closes gaps to distant targets; Trail and Mangle applies Crush; and World Splitter delivers a massive single-hit frontal strike. The setup emphasizes rapid engagement and controlled crowd disruption, aligning with Mi Fu’s role as an aggressive frontline option.
Vulnerability management and ultimate payoff
Mi Fu’s kit centers on vulnerability stack management. When an enemy reaches three stacks, her combo skill triggers automatically, applying physical susceptibility and resetting back into Trail and Mangle. The ultimate, Pile of No Mercy, lifts a target and slams it for substantial physical damage, while feeding back into the same sequence to sustain the chain. This design encourages aggressive rhythm and continuous pressure, rewarding players who maximize uptime and target cycling during sustained engagements.
Camille: the first male six-star Heat Vanguard
Camille arrives in Phase 2 as the game’s inaugural male 6-star operator and its first limited Heat Vanguard. He is a Sarkaz vampire (Blood Hunter) from the new Seš’qa region, featuring a standalone event named Danse Macabre that frames a criminal investigation triggered by an anonymous blood sample and leads toward a progenitor with shared bloodlines. The narrative setup positions Camille as a central figure in thematic investigations tied to his heritage and role.
Firefang Vesperwings and heat mechanics
Camille’s combat revolves around Firefang Vesperwings, a summon dealing heat damage and applying heat infliction, weakness, and heat susceptibility across an area. When a kill happens, the Vesperwings migrate automatically to the nearest remaining enemy, ensuring ongoing pressure without manual recasting. His combo skill triggers when heat infliction is consumed, delivering a swift dash, extra heat damage, and SP recovery, adding sustained offensive flow to his toolkit.
Contingency Contract and Endfield quality-of-life
Contingency Contract makes its Endfield debut in Version 1.3, presenting a high-difficulty endgame challenge format that has been a staple of the original Arknights since its early updates. In terms of quality of life, the update adds bulk equipment forging, bulk weapon dismantling, and lock management to protect pinned gear during bulk operations. The change set aims to streamline maintenance duties and reduce unnecessary micromanagement during large grinds, keeping players focused on strategy and composition rather than tedium.
Version timing and hardware notes
Arknights: Endfield’s current Version 1.2 banner window closes before June 5, and users on systems such as the Lenovo Legion Pro 7i Gen 10 with Intel Core Ultra 9 275HX and RTX 5080 (175W TGP) report locked to 120fps at Very High with DLSS Quality, with GPU utilization varying and CPUs staying relatively cool. These technical notes give players a practical sense of performance expectations and optimization opportunities across hardware configurations, though they may differ by setup and scene complexity.
