Indigo Experimental Operation Release Date
✪ Check Game8 Endfield Twitter for daily tips!
★ Exclusive: Endfield's Connection to Arknights
✰ Version 1.6 is out! | Yuanyuan's Blazing Stoves
├ P1: Si (Builds / Teams / Banner)
├ P2: Argent Flow (Builds / Banner)
└ Rerun: Tangtang (Builds | Teams | Banner)
Indigo Experimental Operation is the second season of Contingency Contract (CC) in Arknights: Endfield. See the release date of the new Contingency Contract and all new features and risks here!
List of Contents
Indigo Experimental Operation Release Date
Available on November 5, 2026 for Version 1.6 Phase 2
|
|
| Release Date | November 5, 2026 |
|---|---|
Contingency Contract: Indigo Experimental Operation will be available on November 5, 2026.
As preparation for the new event, players can participate in the Contingency Readiness sanity event that will start on October 29, 2026 to stock up on Sanity and gather Progression Materials.
Indigo Experimental Operation New Features
Improved Test Criteria Import Feature
The Test Criteria import feature will be improved, as you can now select multiple Criteria at once.
Previously Selected Locked Criteria is Saved
After deselecting a Key Criterion, the previously selected Locked Criteria will be temporarily saved. Therefore, when enabling the Key Criterion again, those saved Locked Criteria will be selected automatically for you.
All Indigo Experimental Operation Risks
List of All Test Criteria
| Test Criteria | Risk | Details |
|---|---|---|
 Combo Lock
|
TBD |
Type: ・Ambient ・Key Effect: Increases combo skill DMG dealt. For every 2 combo skills cast, a Combo Lock that prevents combo skill casting is applied to the combo skill queue. The Combo Lock will disappear after a while. |
 Silence
|
TBD |
Type: ・Ambient ・Key Effect: Increases SP Regeneration and SP Recovery from skills. All operators must cast their battle skills once before any operator can cast their battle skill again. |
 Volatile Gains
|
TBD |
Type: ・Ambient Effect: After an operator casts an ultimate, reset Ultimate Energy of the entire team to ZERO. |
 Blood Rush
|
TBD |
Type: ・Edit Effect: If an enemy has no Vulnerability or Arts Infliction stack on it for a certain duration, the enemy regenerates HP every second. |
 Aggro Focus
|
TBD |
Type: ・Ambient Effect: Enemies attack the controlled operator more often. |
 Fruity Slippers
|
TBD |
Type: ・Edit Effect: On-looking Rockhowlers (that cannot be attack) will occasionally throw Banana Peels into the arena. Multiple Banana peels can exist at once for a certain duration. |
These are all the Test Criteria and Risks revealed during the Version 1.6 livestream. More Test Criteria will be available once the event is released.
The livestream also revealed that some Test Criteria can enhance enemies and give them new attack patterns, grant stackable shields to enemies upon another enemy's death, and introduce other challenging environmental elements and enemy setups.
All Indigo Experimental Operation Rewards
All Possible Rewards
 Oroberyl
|
 Mark of Perseverance
|
 T-Creds
|
 Protohedron
|
 Advanced Progression Selection Crate I
|
 Arms INSP Set
|
These are the possible rewards players can earn during the Contingency Contract: Indigo Experimental Operation event, such as Oroberyls, Mark of Perseverance, and other resources and Progression Materials.
Arknights: Endfield Related Guides
Contingency Contract Event Details
All Contingency Contract Guides
| Indigo Experimental Operation |
 Re-Ignition Experimental Operation |
Contingency Contract Missions
 Forgotten Space |
- |
Comment
Indigo Experimental Operation Release Date
Premium Articles
Rankings
- We could not find the message board you were looking for.
Gaming News
![Wuthering Waves Story Review [3.7 Phase 1] | Delivered a Great Climax to an Otherwise Flawed Arc](https://img.game8.co/4636458/cee3201920088cf951de6c88e0e5f007.png/show)
![Stupid Never Dies Review [First Impressions] | Surprisingly Shallow Gameplay for a Roguelite That Has So Much Style](https://img.game8.co/4659636/e6eb3795e66fb88ce885b33e2c68e7ed.png/thumb)
![Final Fantasy Resonance Review [First Impressions] | Freed From Gacha, a Mobile Final Fantasy Becomes a Classic](https://img.game8.co/4658800/30a5fd716de9c6896b440b4c4b45de99.jpeg/thumb)
![[INTERVIEW] STEINS;GATE RE:BOOT Devs Tease “We’re Pouring Our Hearts" Into the Series' Next Game](https://img.game8.co/4640596/54e1772041fc7f2b0cab415709a1ff16.jpeg/thumb)
Popular Games
Genshin Impact Walkthrough & Guides Wiki
Fire Emblem: Fortune's Weave (FEFW) Walkthrough & Guides Wiki
Aniimo Walkthrough & Guides Wiki
Wuthering Waves Walkthrough & Guides Wiki
Dragon's Dogma 2 (DD2) Dark Arisen Walkthrough & Guides Wiki
Umamusume: Pretty Derby Walkthrough & Guides Wiki
Honkai: Star Rail Walkthrough & Guides Wiki
Zenless Zone Zero Walkthrough & Guides Wiki
Pokemon TCG Pocket (PTCGP) Strategies & Guides Wiki
AION 2 Walkthrough & Guides Wiki
Recommended Games
Fire Emblem Heroes (FEH) Walkthrough & Guides Wiki
Where Winds Meet Walkthrough & Guides Wiki
Diablo 4: Lord of Hatred Walkthrough & Guides Wiki
Super Smash Bros. Ultimate Walkthrough & Guides Wiki
Persona 3 Reload Walkthrough & Guides Wiki
The Legend of Zelda: Tears of the Kingdom Walkthrough & Guides Wiki
Elden Ring Walkthrough & Guides Wiki
Pokemon Brilliant Diamond and Shining Pearl (BDSP) Walkthrough & Guides Wiki
Cyberpunk 2077: Ultimate Edition Walkthrough & Guides Wiki
Monster Hunter World Walkthrough & Guides Wiki
All rights reserved
Copyright © 2022 - 2025 GRYPHLINE. All Rights Reserved.
The copyrights of videos of games used in our content and other intellectual property rights belong to the provider of the game.
The contents we provide on this site were created personally by members of the Game8 editorial department.
We refuse the right to reuse or repost content taken without our permission such as data or images to other sites.