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Arknights: Endfield
Sanity Discount Event Guide
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★ Exclusive: Endfield's Connection to Arknights
★ Ver. 1.1: Release Date | Livestream | Maintenance
★ Tangtang (Guide | Banner) | Rossi (Guide | Banner)
★ Best Builds: Yvonne | Gilberta | Laevatain
★ Hot: Essence Tool | Blueprint | Best Dijiang Setup
The Sanity Discount Event lets players in Arknights: Endfield spend less Sanity when doing Energy Alluviums and Protocol Spaces. See how players can make use of the Sanity discount, and where the discount can be used here!
Sanity Discount Event Details
Sanity Discount Event Information
 |
|
| Event Start | March 2, 2026 |
|---|---|
| Event End | March 12, 2026 |
The event begins on March 2, 2026, and will last until just before maintenance that leads to Version 1.1 on March 12, 2026.
Sanity Discount Event Countdown
| Event Duration | |
|---|---|
| until the end of the event |
Unlocks After Completing Paving the Way
To be able to access this event, players must first clear Chapter 1 Process 2 of the Main Missions, Paving the Way.
Paving the Way Main Mission Guide
Sanity Discount Event Rules
|
|
3 Chances to Spend Sanity Discounts Per Day
During the duration of the event, all players will receive 3 chances to spend Sanity at a discounted rate, up to 40 Sanity cut from its regular cost.
This can be used across all viable nodes that use Sanity as a cost.
Sanity Usage Permit Cannot Be Used
When spending Sanity for something, the Discount will be first used, and players cannot use Sanity Usage Permits.
Sanity Discounts Refresh on Server Reset
The Sanity Discount chances will refresh to full when reset happens at 4:00 AM (Server Time).
How to Spend Sanity Discounts
Protocol Spaces
The most likely use of Sanity Discounts will be in Protocol Spaces, where each clear will reward players with materials that will improve their Operators, their abilities, or their weapons.
All Protocol Spaces and Locations
Severe Energy Alluviums
Severe Energy Alluviums are harder versions of Energy Alluviums, and cost Sanity to begin the challenge. Clearing one will reward the player with Flawless Essences, which can be etched onto an Operator's weapon and potentially grant additional buffs.
Energy Alluvium Interactive Map
Upcoming Sanity Discount Events
Likely Rerun in Future Versions
There is a good chance that the Sanity Discount Event will come back in future version updates in Arknights: Endfield. This section will be updated once any future runs of this event are announced!
Version 1.1 Update Release Date and Banners
Arknights: Endfield Related Guides
Current Events
| Event | Schedule & Summary |
|---|---|
|
Sanity Discount
|
Period: 03/02/2026 - 03/12/2026 Players earn 3 Sanity discounts per day, reducing the cost by up to 40 Sanity in Protocol Spaces and Energy Alluviums! |
 A Spring Note, Warmly Crafted Web Event
|
Period: 02/15/26 - 03/04/26 Operators have just sent you their holiday greetings. Witness their joy, warmth, care, and admiration. |
 Fortune Connect-and-Win Mail Reward Event
|
Period: 02/15/26 - 02/23/26 Receive in-game mail daily to receive special rewards including Oroberyls, Springfest Pastry, and Emergency Sanity Concentrate! |
 Voyage to the Stars Web Event
|
Period: 01/16/26 - 03/04/26 Login to send your username and UID to space! |
Upcoming Events
| Event | Schedule & Summary |
|---|---|
 Spectral Splendor Sign In
|
Period: 02/24/26 - 03/13/26 Log into the game for 7 days to earn various sign-in rewards! |
 Steps to Sweet Success Mail Event
|
Period: 02/16/26 - 03/04/26 Join to earn rewards including Oroberyls, Springfest Pastry, and Emergency Sanity Concentrate from Operators. |
 Pearl of the Pack Sign-In
|
Period: 03/29/26 - 04/14/26 Login for 7 days to get rewards during the Rossi Sign-In Event! |
 Gently Flows Qingbo Sign-In
|
Period: 03/12/26 - 03/29/26 Login for 7 days to get rewards during the Tangtang Sign-In Event! |
 Survival Training
|
Period: 04/09/26 Clear the tower defense-esque game modes and combat stages to get all the rewards! |
 Cleanse and Rinse
|
Period: 03/29/26 Use a jet drone to cleanse and rinse objectives to get rewards |
 Supply Exploration Day
|
Period: 03/19/26 Collect items and exchange them for rewards! |
Permanent Events
| Event | Schedule & Summary |
|---|---|
 Awakening Sign-In Beginner Event
|
Period: Permanent Once you unlock the Event Center, log into the game for 14 days. |
 New Horizons Beginner Event
|
Period: Permanent Complete the designated main missions to earn pulls on the New Horizons Headhunting Banner! |
 Authority Level Rewards Beginner Event
|
Period: Permanent Claim exclusive rewards upon reaching specific Authority Levels! |
Past Events
| All Arknights Past Events | ||
|---|---|---|
 Monumental Etching: Old Wounds Exclusive Event
|
 Glittering Life at Wuling Guide Event
|
 Carly's Fairytale of the Valley Camera Event
|
 Combat Drills Operator Trial
|
 Messenger Express Sign In
|
 Firewalker's Trail Sign In
|
 Final Prep Orders Web Event
|
||
All Web Events
Comment
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Sanity Discount Event Guide
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