Operation Originium Dust (OD) is the tenth major event and ninth Side Story in Arknights that also acts as a crossover with Tom Clancy's Rainbow Six Siege and includes the first Multivariate Cooperation event, Defence Protocols.
|CN||March 9, 2021 ~ March 23, 2021|
|Global||August 18, 2021 ~ September 1, 2021|
|TW||September 9, 2021 ~ September 23, 2021|
Para Bellum operations are available in the second week.
The Attack, Defence, Tactical Collide limited crossover headhunting banner is featured.
- A single Elite Forces Headhunting Permit can be claimed (one time only) while the Attack, Defence, Tactical Collide banner is up.
Rhodes Island Resource Allocation Certificate
All OD operations award Rhodes Island Resource Allocation Certificate when cleared, with more being given when the player clears the operation for the first time. Para Bellum operations only awards R.I. Resource Allocation Certificates when cleared for the first time. Engineering Test Indicators (Defence Protocols) missions also award R.I. Resource Allocation Certificates when completed.
R.I. Resource Allocation Certificates can be exchanged for various items at the Commissary.
The Combat Report rewards can be claimed until September 8, 2021.
|Clear OD-3 with 3 stars.|
|Clear OD-5 with 3 stars.|
|Clear OD-6 with 3 stars.|
|Clear OD-7 with 3 stars.|
|Clear OD-8 with 3 stars.|
|Clear OD operations except OD-TR-1 15 times.|
|Clear OD operations except OD-TR-1 45 times.|
|Clear OD operations except OD-TR-1 85 times.|
Combat Report missions give up to 790 while first clear rewards of OD operations give up to 700 and Defence Protocols' Engineering Test Indicators missions award up to 1460 , thus requiring the player to farm an additional 3164 from OD operations.
The Commissary is open until September 8, 2021.
Pinpoint Accuracy Login Event
During the event, login to the game for 7 days to claim the following rewards.
The following three packs are available in the Packs Store:
|Position Defense Pack||$0.99|
|Common Tactical Pack||$6.99|
|Assault Elite Pack||$29.99|
- Note: All three packs can only be purchased once per account.
The Special Equipment Exhibition Room furniture set is available; some of its parts are awarded as the first drop of OD operations and completing Combat Report missions while others are available in the Commissary and Furniture Store.
Operator Record/Paradox Simulation
|Operator||Operator Record(s)||Paradox Simulation|
|Old Friends in Foreign Places||Enemy Ambush Control|
|Sword and Shield|
|Refurbishment Plans||Floral Fragrance|
|The Day We Left Home||Flame Net|
ID Info Update Card
All players will receive an ID Info Update Card (as an in-game mail) on August 18, 2021.