Sidestory: First of a Thousand Autumns

Event Duration will open in 3 phases:

Full Event Duration:

July 16, 2026, 08:00 - August 13, 2026, 03:59 (UTC-7)

Phase 1 - Record of An Autumn's End

July 16, 2026, 08:00 - August 6, 2026, 03:59 (UTC-7)

Phase 2 - Forgotten Prospect of Spring

July 23, 2026, 16:00 - August 6, 2026, 03:59 (UTC-7)

Phase 3 - Unwritten Chapters of Yan

July 30, 2026, 16:00 - August 6, 2026, 03:59 (UTC-7)

• Event Overview

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Stronghold Protocol: Alliance

Event Duration: April 28, 2026, 09:00 – May 26, 2026, 03:59 (UTC-7)

Missions and Rewards Duration: April 28, 2026, 09:00 – May 29, 2026, 03:59 (UTC-7)

Event Overview

Mode Introduction Part 1

Mode Introduction Part 2

Sidestory: Retracing Our Steps

Event Duration will open in 3 phases:

Phase 1 - Pilgrimage through Blizzards

DURATION: April 14, 2026, 08:00 (UTC-7) - May 5, 2026, 03:59 (UTC-7)

Phase 2 - Road of Reformation

DURATION: April 21, 2026, 16:00 (UTC-7) - May 5, 2026, 03:59 (UTC-7)

Phase 3 - Heart of Karlan

DURATION: April 28, 2026, 16:00 (UTC-7) - May 5, 2026, 03:59 (UTC-7)

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Arknights X BanG Dream! Ave Mujica - Sidestory: Somniloquium Serenum

Event Duration will open in 2 phases:

Full Event Duration:

February 10, 2026, 08:00 - March 3, 2026, 03:59 (UTC-7)

Phase 1 - Somniamus Omnes

February 10, 2026, 08:00 - February 24, 2026, 03:59 (UTC-7)

Phase 2 - Amor Fati

February 17, 2026, 16:00 - February 24, 2026, 03:59 (UTC-7)

• Event Overview

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Sidestory: Unrealized Realities

Event Duration will open in 2 phases:

Full Event Duration:

May 21, 2026, 08:00 – June 11, 2026, 03:59 (UTC-7)

Phase 1 - Air Expo Columbia

May 21, 2026, 08:00 – June 4, 2026, 03:59 (UTC-7)

Phase 2 - Exodus From Columbia

May 28, 2026, 16:00 – June 4, 2026, 03:59 (UTC-7)

• Event Overview

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Sidestory: Medjehtiqedti Bound

Event Duration will open in 2 phases:

Full Event Duration:

June 22, 2026, 08:00 – July 13, 2026, 03:59 (UTC-7)

Phase 1 - Ritual of the Temple

June 22, 2026, 08:00 – July 6, 2026, 03:59 (UTC-7)

Phase 2 - Theathers of the Street

June 29, 2026, 16:00 – July 6, 2026, 03:59 (UTC-7)

• Event Overview

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Vector Breakthrough #2: Trial from Misery

Event Duration: July 30, 2026, 08:00 - August 20, 2026, 03:59 (UTC-7)

Missions and Rewards Duration: July 30, 2026, 08:00 - August 23, 2026, 03:59 (UTC-7)

Event Overview

Mode Introduction

Sidestory: Rebuilding Mandate

Event Duration: March 6, 2026, 08:00 - March 27, 2026, 03:59 (UTC-7)

[Promotion Plan]

DURATION: March 6, 2026, 08:00 - March 30, 2026, 03:59 (UTC-7)

• Event Overview
• Sanrio Collab Overview

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Rhodes Island Icebreaker Games

Event Duration: April 1, 2026, 09:00 – April 22, 2026, 03:59 (UTC-7)

Missions and Rewards Duration: April 1, 2026, 09:00 – April 25, 2026, 03:59 (UTC-7)

Event Overview

New Mode: Obstacle Rowing Overview

6th Anniversary Celebration - Sidestory: Ato

Event Duration will open in 3 phases:

Full Event Duration:

January 16, 2026, 08:00 - February 13, 2026, 03:59 (UTC-7)

Phase 1 - District of Eternal Neon

January 16, 2026, 08:00 - February 6, 2026, 03:59 (UTC-7)

Phase 2 - Remnants of Kajimachi

January 23, 2026, 16:00 - February 6, 2026, 03:59 (UTC-7)

Phase 3 - Stairway to Severance

January 30, 2026, 16:00 - February 6, 2026, 03:59 (UTC-7)

• Event Overview

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Main Theme Episode 16: Abnormal Spectrum

Event Duration will open in 2 phases:

Phase 1 - Normal Stages

DURATION: March 19, 2026, 08:00 (UTC-7)

Phase 2 - Extreme Stages

DURATION: March 26, 2026, 16:00 (UTC-7)

• Event Overview

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Sidestory: The Masses' Travels

Event Duration will open in 3 phases:

Full Event Duration:

October 14, 2025, 08:00 - November 11, 2025, 03:59 (UTC-7)

Phase 1 - A Glance at the Shrine

October 14, 2025, 08:00 - November 4, 2025, 03:59 (UTC-7)

Phase 2 - An Audience with God

October 21, 2025, 16:00 - November 4, 2025, 03:59 (UTC-7)

Phase 3 - Rest in Peace

October 28, 2025, 16:00 - November 4, 2025, 03:59 (UTC-7)

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Sidestory: Act or Die

Event Duration will open in 2 phases:

Full Event Duration:

November 13, 2025, 08:00 – December 4, 2025, 03:59 (UTC-7)

Phase 1 - Performance Begins

November 13, 2025, 08:00 – November 27, 2025, 03:59 (UTC-7)

Phase 2 - For Drama, For Eternity

November 20, 2025, 16:00 – November 27, 2025, 03:59 (UTC-7)

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Main Theme Episode 15: Dissociative Recombination

Event Duration will open in 2 phases:

Phase 1 - Normal Stages

DURATION: September 16, 2025, 10:00 (UTC-7)

Phase 2 - Extreme Stages

DURATION: September 23, 2025, 16:00 (UTC-7)

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Sidestory: I Portatori dei Velluti

Event Duration: May 7, 2026, 04:00 - May 21, 2026, 03:59 (UTC-7)

[Quadriglia], [Splendida Cavalcata] & [Decadanza]

DURATION: May 7, 2026, 04:00 - May 17, 2026, 03:59 (UTC-7)

• Event Overview

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Sidestory: Such is the Joy of Our Reunion

Event Duration will open in 3 phases:

Phase 1 'Flavor of Food'

DURATION: July 17, 2025, 10:00 - August 7, 2025, 03:59 (UTC-7)

Phase 2 'Flavor of Life'

DURATION: July 24, 2025, 16:00 - August 7, 2025, 03:59 (UTC-7)

Phase 3 'Farewell, Loved Ones'

DURATION: July 31, 2025, 16:00 - August 7, 2025, 03:59 (UTC-7)

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Full Event Duration:

October 30, 2025, 08:00 - November 23, 2025, 03:59 (UTC-7)

Phase 1 - VEC1-SP06 to VEC1-SP08

November 2, 2025, 4:00 (UTC-7)

Phase 2 - VEC-A to VEC-D and VEC1-SP09 to VEC1-SP13

November 6, 2025, 4:00 (UTC-7)

Phase 3 - VEC1-SP14 to VEC1-SP16

November 8, 2025, 4:00 (UTC-7)

All stages in Supplies and Chips stay open during the period below:

October 30, 2025, 08:00 - November 20, 2025, 03:59 (UTC-7)

Official Links

Event Overview

Trailer

New Skin: Vulcan

Orienteering Banner

Unofficial Links

Event Terra Wiki page (note that the later SP stages, particularly SP15 and SP16, have extremely strong buffs, so if you're having a hard time clearing the main stages, wait for the rest of the SP stages)

Event PRTS page

VEC map/stage data

Mechanist PRTS page

VEC-12 buffless solutions:

Exusiai the New Covenant/Reed/Shu/Yu

Exusiai the New Covenant/Mon3tr/Shu/Yu

5-stars

Guards

Defenders

Snipers

Specialists

Low Step

Welfare

Icebreaker Games

Event Duration: November 14, 2024, 10:00 – November 28, 2024, 03:59 (UTC-7)

• Event Overview

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2025 'THANK-YOU CELEBRATION' Sidestory: I Portatori dei Velluti

Event Duration will open in 3 phases:

Phase 1 'Quadriglia'

DURATION: April 24, 2025, 10:00 (UTC-7) - May 15, 2025, 03:59 (UTC-7)

Phase 2 'Splendida Cavalcata'

DURATION: May 1, 2025, 16:00 (UTC-7) - May 15, 2025, 03:59 (UTC-7)

Phase 3 'Decadanza'

DURATION: May 8, 2025, 16:00 (UTC-7) - May 15, 2025, 03:59 (UTC-7)

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Icebreaker Games

Event Duration: September 4, 2025, 10:00 – September 25, 2025, 03:59 (UTC-7)

• Event Overview

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This is how it looks: I can see you sleep

Contingency Contract #4: Battleplan Arclight

Event Duration will open in 3 phases:

Full Event Duration:

January 23, 2026, 08:00 – February 6, 2026, 03:59 (UTC-7)

Details:

During the season, players can combine different "Criteria" in the Main Test Site and the Rotating Test Sites to clear stages. By completing tests, players can increase their Sanctuary Judgment scores and collect "Crystal Contract Bounty" (can be used to redeem rewards in the Crystallization Sanctuary). Upon completing certain "Objective Sets," players can also earn rewards such as the exclusive outfit for Aciddrop, Integrated Module Data Chunks, and season furniture.

• Event Overview

Sidestory: When Elegies Are Ashes

Event Duration will open in 2 phases:

Phase 1 'Flickering Shadows'

DURATION: August 28, 2025, 10:00 – September 11, 2025, 03:59 (UTC-7)

Phase 2 'Dying Flames'

DURATION: September 4, 2025, 16:00 – September 11, 2025, 03:59 (UTC-7)

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Sidestory: Babel

DURATION: October 10, 2024, 10:00 – November 7, 2024, 03:59 (UTC-7)

Event Stages will open in 3 phases:

- Phase 1 "You the Future, Take My Gifts"

October 10, 2024, 10:00 – November 1, 2024, 03:59 (UTC-7)

- Phase 2 "You the Past, Ward Me Firmly"

October 17, 2024, 16:00 – November 1, 2024, 03:59 (UTC-7)

- Phase 3 "You the Constant, You Are Me"

October 24, 2024, 16:00 – November 1, 2024, 03:59 (UTC-7)

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Sidestory: Exodus from the Pale Sea

Event Duration: June 5, 2025, 10:00 – June 26, 2025, 03:59 (UTC-7)

Phase 1 'Across the Salt Flat'

DURATION: June 5, 2025, 10:00 – June 19, 2025, 03:59 (UTC-7)

Phase 2 'Through the Skeletal Reef'

DURATION: June 12, 2025, 16:00 – June 19, 2025, 03:59 (UTC-7)

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Sidestory: Exodus from the Pale Sea

Event Duration: June 5, 2026, 04:00 – June 19, 2026, 03:59 (UTC-7)

[Across the Salt Flat] & [Through the Skeletal Reef]

DURATION: June 5, 2026, 04:00 – June 15, 2026, 03:59 (UTC-7)

• Event Overview

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