(In-Game) 05.21 (Thu) Event Info
Event NameEvent PeriodBattlefield Medical Support OperationAfter the 05.21.2026 (Thu) update - 06.24.2026 (Wed) 23:59 PDTUltimate Weapon Upgrade MissionAfter the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDTNew Content Challenge MissionAfter the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDTAccelerate Research WeekAfter the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDTDescendant's Weekend05.22.2026 (Fri) 00:00 PDT - 06.14.2026 (Sun) 23:59 PDT Greetings, Descendants! We would like to inform you of the events that will begin after the 05.21 (Thu) update.For detailed event information, please check the Game Menu (ESC) > "Event" on the right. ■ Event 1. Battlefield Medical Support OperationValby and Ines' Medical Support skins have arrived!Log in every day and claim your Attendance Rewards! - Event Period: After the 05.21.2026 (Thu) update - 06.24.2026 (Wed) 23:59 PDTAccumulated LoginsRewardsDay 1• 3 New Two-Tone Hair Dye Selection Boxes\[New Two-Tone Hair Dye Selection Box: Choose 1 of 10]Day 2• 1 Photon ImprinterDay 3• Chest Attachment "Detonator"Day 4• 1 Currency Supply Box\[1,000,000 Gold and 100,000 Kuiper Shards]Day 5• Attendance MementoDay 6• 1 30% Unique Arche Factor EXP Boost (1-Hour)Day 7• Back Attachment "High-Performance Time Bomb"Day 8• 1 Crystallization CatalystDay 9• 1 Ultimate Weapon Selection Box III\[Choose 1: Thunder Cage, The Last Dagger, Smithereens, Greg's Reversed Fate, Blue Beetle, Restored Relic,[/p]Clairvoyance, Divine Punishment, The Final Masterpiece, Nazeistra's Devotion, Perforator, Executor, Python, Enduring Legacy,Albion Cavalry Gun, Secret Garden, Wave of Light, Afterglow Sword, Piercing Light, King's Guard Lance, Fallen Hope,Peace Maker, Frost Watcher, Hammer and Anvil, A-TAMS, Ancient Knight, ERASER, Shadow,Deus Ex Manus][/td][/tr]Day 10• Name Card "Arche Boom!"Day 11• 2,000 Void Abyss Metal FragmentsDay 12• 1 Attendance MementoDay 13• 300 Fine Adjustment Control AxisDay 14• 1 Valby's Medical Support Box\[Valby "Medical Support" Skin]Day 15• 1 Crystallization CatalystDay 16• 3 Weapon Augmentation Core Box II\[Acquire 1 of each (Firepower Augmentation Core X, Attribute Augmentation Core X, Hit (Variant AB) Augmentation Core X,[/p]Tactical Augmentation Core X, Precision Augmentation Core X, Special Augmentation Core X)][/td][/tr]Day 17• 2 30% Weapon Proficiency Boost (1-Hour)Day 18• 2,000,000 GoldDay 19• 1 Attendance MementoDay 20• 100 Fine Adjustment Control AxisDay 21• Ecive Skin "Refreshing"Day 22• 1 Crystallization CatalystDay 23• 1 Dia Ancestors Module Selection Box\[Choose 1 Ancestors Module from any Descendant, including Dia's Ancestors Module]Day 24• 1 Superheated MaterialDay 25• 200 Superconductive Cooling UnitsDay 26• 1 Attendance MementoDay 27• 1 Dia Ancestors Module Selection Box\[Choose 1 Ancestors Module from any Descendant, including Dia's Ancestors Module]Day 28• 1 Ines' Medical Support Box\[Ines "Medical Support" Skin][/table]※ You may receive Attendance Rewards by logging in again after reset (00:00 PDT). ■ Event 2. Ultimate Weapon Upgrade MissionComplete Growth Missions to receive the materials needed for Growth.Research Ultimate Weapons and make them even more powerful! - Event Period: After the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDT \[Weekly Missions]Operation NameReward RequirementsRewardsUpgrade Preparation Mission IInteract with the NPC Eckert 1 time• 200 Fine Adjustment Control AxisUpgrade Preparation Mission IIComplete Void Erosion Purge 4 times (Any Difficulty)• 5 Weapon Augmentation Core Boxes II\[Acquire 1 of each (Firepower Augmentation Core X, Attribute Augmentation Core X, Hit (Variant AB) Augmentation Core X,[/p]Tactical Augmentation Core X, Precision Augmentation Core X, Special Augmentation Core X)][/td][/tr][/table]※ Weekly Missions reset every Thursday at 00:00 PDT during the event period. \[Special Missions]Operation NameReward RequirementsRewardsUpgrade Mission IComplete Ultimate Weapon Research 1 time• 1 Energy ActivatorUpgrade Mission IIUse 500 Fine Adjustment Control Axis on an Ultimate Weapon• 500 Fine Adjustment Control AxisUpgrade Mission IIIUse an Energy Activator on an Ultimate Weapon 1 time• 1 Crystallization CatalystUpgrade Mission IVUse a Crystallization Catalyst on an Ultimate Weapon 1 time• 5,000,000 GoldUpgrade Mission VUse a Crystallization Catalyst on an Ultimate Weapon 3 times• 10 Weapon Augmentation Core Boxes II\[Acquire 1 of each (Firepower Augmentation Core X, Attribute Augmentation Core X, Hit (Variant AB) Augmentation Core X,[/p]Tactical Augmentation Core X, Precision Augmentation Core X, Special Augmentation Core X)][/td][/tr]Upgrade Mission VIUse a Crystallization Catalyst on an Ultimate Weapon 5 times• Thunder Cage Weapon Skin "Rosy Maple"• 2 Crystallization CatalystsUpgrade Mission VIIUnlock an Ultimate Weapon Core 1 time• Esiemo Makeup "Mage"• 10 Weapon Augmentation Core Boxes II\[Acquire 1 of each (Firepower Augmentation Core X, Attribute Augmentation Core X, Hit (Variant AB)
Event Name
Event Period
Battlefield Medical Support Operation
After the 05.21.2026 (Thu) update - 06.24.2026 (Wed) 23:59 PDT
Ultimate Weapon Upgrade Mission
After the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDT
New Content Challenge Mission
After the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDT
Accelerate Research Week
After the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDT
Descendant's Weekend
05.22.2026 (Fri) 00:00 PDT - 06.14.2026 (Sun) 23:59 PDT
We would like to inform you of the events that will begin after the 05.21 (Thu) update.
For detailed event information, please check the Game Menu (ESC) > "Event" on the right.
■ Event 1. Battlefield Medical Support Operation
Valby and Ines' Medical Support skins have arrived!
Log in every day and claim your Attendance Rewards!
- Event Period: After the 05.21.2026 (Thu) update - 06.24.2026 (Wed) 23:59 PDT
Accumulated Logins
Rewards
Day 1
• 3 New Two-Tone Hair Dye Selection Boxes
\[New Two-Tone Hair Dye Selection Box: Choose 1 of 10]
Day 2
• 1 Photon Imprinter
Day 3
• Chest Attachment "Detonator"
Day 4
• 1 Currency Supply Box
\[1,000,000 Gold and 100,000 Kuiper Shards]
Day 5
• Attendance Memento
Day 6
• 1 30% Unique Arche Factor EXP Boost (1-Hour)
Day 7
• Back Attachment "High-Performance Time Bomb"
Day 8
• 1 Crystallization Catalyst
Day 9
• 1 Ultimate Weapon Selection Box III
\[Choose 1: Thunder Cage, The Last Dagger, Smithereens, Greg's Reversed Fate, Blue Beetle, Restored Relic,[/p]
Clairvoyance, Divine Punishment, The Final Masterpiece, Nazeistra's Devotion, Perforator, Executor, Python, Enduring Legacy,
Albion Cavalry Gun, Secret Garden, Wave of Light, Afterglow Sword, Piercing Light, King's Guard Lance, Fallen Hope,
Peace Maker, Frost Watcher, Hammer and Anvil, A-TAMS, Ancient Knight, ERASER, Shadow,
Deus Ex Manus][/td][/tr]
Day 10
• Name Card "Arche Boom!"
Day 11
• 2,000 Void Abyss Metal Fragments
Day 12
• 1 Attendance Memento
Day 13
• 300 Fine Adjustment Control Axis
Day 14
• 1 Valby's Medical Support Box
\[Valby "Medical Support" Skin]
Day 15
• 1 Crystallization Catalyst
Day 16
• 3 Weapon Augmentation Core Box II
\[Acquire 1 of each (Firepower Augmentation Core X, Attribute Augmentation Core X, Hit (Variant AB) Augmentation Core X,[/p]
Tactical Augmentation Core X, Precision Augmentation Core X, Special Augmentation Core X)][/td][/tr]
Day 17
• 2 30% Weapon Proficiency Boost (1-Hour)
Day 18
• 2,000,000 Gold
Day 19
• 1 Attendance Memento
Day 20
• 100 Fine Adjustment Control Axis
Day 21
• Ecive Skin "Refreshing"
Day 22
• 1 Crystallization Catalyst
Day 23
• 1 Dia Ancestors Module Selection Box
\[Choose 1 Ancestors Module from any Descendant, including Dia's Ancestors Module]
Day 24
• 1 Superheated Material
Day 25
• 200 Superconductive Cooling Units
Day 26
• 1 Attendance Memento
Day 27
• 1 Dia Ancestors Module Selection Box
\[Choose 1 Ancestors Module from any Descendant, including Dia's Ancestors Module]
Day 28
• 1 Ines' Medical Support Box
\[Ines "Medical Support" Skin]
※ You may receive Attendance Rewards by logging in again after reset (00:00 PDT).
■ Event 2. Ultimate Weapon Upgrade Mission
Complete Growth Missions to receive the materials needed for Growth.
Research Ultimate Weapons and make them even more powerful!
- Event Period: After the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDT
\[Weekly Missions]
Operation Name
Reward Requirements
Rewards
Upgrade Preparation Mission I
Interact with the NPC Eckert 1 time
• 200 Fine Adjustment Control Axis
Upgrade Preparation Mission II
Complete Void Erosion Purge 4 times (Any Difficulty)
• 5 Weapon Augmentation Core Boxes II
\[Acquire 1 of each (Firepower Augmentation Core X, Attribute Augmentation Core X, Hit (Variant AB) Augmentation Core X,[/p]
Tactical Augmentation Core X, Precision Augmentation Core X, Special Augmentation Core X)][/td][/tr][/table]
※ Weekly Missions reset every Thursday at 00:00 PDT during the event period.
\[Special Missions]
Operation Name
Reward Requirements
Rewards
Upgrade Mission I
Complete Ultimate Weapon Research 1 time
• 1 Energy Activator
Upgrade Mission II
Use 500 Fine Adjustment Control Axis on an Ultimate Weapon
• 500 Fine Adjustment Control Axis
Upgrade Mission III
Use an Energy Activator on an Ultimate Weapon 1 time
• 1 Crystallization Catalyst
Upgrade Mission IV
Use a Crystallization Catalyst on an Ultimate Weapon 1 time
• 5,000,000 Gold
Upgrade Mission V
Use a Crystallization Catalyst on an Ultimate Weapon 3 times
• 10 Weapon Augmentation Core Boxes II
\[Acquire 1 of each (Firepower Augmentation Core X, Attribute Augmentation Core X, Hit (Variant AB) Augmentation Core X,[/p]
Tactical Augmentation Core X, Precision Augmentation Core X, Special Augmentation Core X)][/td][/tr]
Upgrade Mission VI
Use a Crystallization Catalyst on an Ultimate Weapon 5 times
• Thunder Cage Weapon Skin "Rosy Maple"
• 2 Crystallization Catalysts
Upgrade Mission VII
Unlock an Ultimate Weapon Core 1 time
• Esiemo Makeup "Mage"
• 10 Weapon Augmentation Core Boxes II
\[Acquire 1 of each (Firepower Augmentation Core X, Attribute Augmentation Core X, Hit (Variant AB) Augmentation Core X,[/p]
Tactical Augmentation Core X, Precision Augmentation Core X, Special Augmentation Core X)][/td][/tr][/table]
※ Special Missions can be completed once during the Event Period.
■ Event 3. New Content Challenge Mission
Take on the all-new Onslaught Mode and Bounty Operation!
Complete Missions to earn special rewards.
- Event Period: After the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDT
\[Daily Missions]
Operation Name
Reward Requirements
Rewards
Onslaught Mode Mission I
Install or upgrade Defensive Assets in Onslaught Mode
• 200 Superconductive Cooling Units
Onslaught Mode Mission II
Eliminate 100 enemies in Onslaught Mode
• 1 Superheated Material
Bounty Operations Mission I
Defeat 100 enemies in Bounty Operations
• 100 Superconductive Cooling Units
Bounty Operations Mission II
Readjust Ancestors Module 1 time
• 500,000 Gold
※ Daily Missions reset at 00:00 PDT every day during the event.
\[Weekly Missions]
Operation Name
Reward Requirements
Rewards
Weekly Challenge Mission I
Complete Daily Missions 6 times
• 1 Attendance Memento
• 3 Ultimate Alignment Devices
Weekly Challenge Mission II
Complete Axion Plains Infiltration Operation Support 1 time
• 1 Vulgus Bio Data Chip
※ Weekly Missions reset every Thursday at 00:00 PDT during the event period.
※ Weekly Challenge Mission I is counted when completing Daily Missions during this Event (Onslaught Mode Mission I, II/Bounty Operation Mission I, II).
※ Weekly Challenge Mission II is counted when completing an Infiltration Operation in Axion Plains with \[Accept Other Infiltration Support] enabled.
※ The Vulgus Bio Data Chip is an item required to open the loot rewards dropped after completing a Bounty Operation.
\[Special Missions]
Operation Name
Reward Requirements
Rewards
Time to Clash
Onslaught Mode: Complete Stage 1 once
• UI Theme "Time to Clash"
Time of the Hunt
Complete Bounty Operations 3 times
• Photo Frame "Arrest Completed"
• Photo Sticker "Identity Information"
• Photo Sticker "Wanted"
※ Special Missions can be completed once during the Event Period.
■ Event 4. Accelerate Research Week
Completing Accelerate Research content reduces the time of ongoing research.
Play the game and complete your research faster!
- Event Period: After the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDT
Application Period
Event Effect
After the 05.21.2026 (Thu) update - 06.17.2026 (Wed) 23:59 PDT
60% acceleration effect applies from Monday 00:00 to Thursday 23:59 PDT
120% acceleration effect applies from Friday 00:00 to Sunday 23:59 PDT
The Accelerate Research effect stacks with other research boost effects.
Accelerate Research content and time reduction may vary with each event.
Detailed information can be checked through Anais in Albion or the Info button on the World Map.
■ Event 5. Descendant's Weekend
Experience special boost effects applied every weekend and become even stronger!
- Event Period: 05.22.2026 (Fri) 00:00 - 06.14.2026 (Sun) 23:59 PDT
Event Application Period
05.22.2026 (Fri) 00:00 PDT - 05.24.2026 (Sun) 23:59 PDT
05.29.2026 (Fri) 00:00 PDT - 05.31.2026 (Sun) 23:59 PDT
06.05.2026 (Fri) 00:00 PDT - 06.07.2026 (Sun) 23:59 PDT
06.12.2026 (Fri) 00:00 PDT - 06.14.2026 (Sun) 23:59 PDT
Content
Applied Boost
Complete Infiltration Operations (Any Difficulty)
20% increase to Descendant EXP, Weapon Proficiency, and Arche Tuning EXP gain
Complete 1 Sigma Sector or higher (Any Difficulty)
Complete 1 Special Operation (Any Difficulty)
Gold & Kuiper Shard Gain +20%
Breach Tracking
※ Boost effects will be applied when playing the above content during the Event Period.
※ Can be stacked with effects from other boosts.
※ Event Boost effects do not apply to Today's Bonus, Amorphous Dimensional Stone rewards, or Special Operation Wave mid-stage rewards.
■ Event Precautions
※ Please check the timeline of each event to participate.
※ If server maintenance is performed on the final day of the event, the event will end when maintenance begins.
※ Rewards sent via mail will arrive in your Mailbox within 10 minutes of being claimed.
※ Please be sure to claim event rewards sent to your Mailbox before they expire.
Thank you.
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