How the Sanity Discount Event Works in Arknights Endfield (March 2026 Guide)

What to know

• The Sanity Discount event runs March 2–March 12, 2026 (server time).
• Only certain stages receive reduced Sanity costs, not all content.
• Discounts may include a daily usage cap, so planning matters.
• Smart daily optimization gives better returns than hoarding Sanity.

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The Sanity Discount event in Arknights Endfield is a limited-time farming boost tied to the Zeroth Directive content cycle. During this window, specific stages cost less Sanity to claim rewards, allowing you to gather promotion materials, upgrade components, and progression resources more efficiently.

Because the discount is selective and potentially capped per day, you benefit more from structured daily play than from stockpiling Sanity at the cap.

Sanity Discount event in Arknights Endfield details and time

Category	Details
Event Name	Sanity Discount Event
Game	Arknights: Endfield
Duration	March 2 – March 12, 2026
Applies To	Selected stages only
Benefit	Reduced Sanity cost per claim
Limitation	Likely daily discounted claim cap
Best Strategy	Daily optimization over hoarding

Sanity functions as your core stamina resource. Normally, farming high-tier promotion or upgrade materials consumes large amounts of it, slowing progression.

During this event, eligible stages require fewer Sanity per reward claim, effectively increasing your farming efficiency. However, the discount does not automatically mean unlimited value. Based on event design patterns, discounted runs may:

• Be restricted to specific stage categories
• Apply only to the first few claims each day
• Reset daily rather than stack across the event

That’s why daily planning becomes more important than saving for one massive spending session.

How to prepare for the Sanity Discount event

Preparation determines how much value you extract from the event. The goal is to enter the event flexibly, not capped or wasteful.

Avoid sitting at the Sanity cap

Sanity regenerates over time. If you sit at maximum, you lose regeneration value. Continue your normal daily farming before March 2 so you don’t waste passive recovery. Enter the event with room to regenerate rather than fully capped and stagnant.

Save non-expiring consumables only

If you have boosters, refills, or items that restore Sanity, check expiration timers. Only keep those that will still be valid during March 2–12. Let expiring ones be used normally.

Use premium rewards as a Sanity buffer

Battle pass rewards or progression track items that store Sanity function like a “bank.” Keeping these unclaimed allows you to inject extra stamina during high-value farming days without wasting regeneration beforehand.

Decide your farming targets early

Identify:

• Promotion materials
• Ascension components
• Weapon upgrade resources
• Rare enhancement drops

You don’t want to decide on Day 1. Know exactly what you’ll farm the moment the event begins.

What to do on Day 1 of the event

Execution matters more than preparation.

1. Confirm event rules immediately after reset. Check which stages qualify, how much the discount is, and whether there’s a daily cap.
2. Use discounted attempts on the highest-value materials first. Focus on items that are either hard to farm or required for immediate progression.
3. Once the discounted limit is reached, return to your normal farming route. Do not overspend inefficiently just because the event is active.

How to claim discounted rewards

Claiming works the same way as normal farming.

1. Enter an eligible stage.
2. Spend the reduced Sanity cost shown on the stage screen.
3. Complete the stage and claim rewards as usual.

There is no separate claim button. The discount applies automatically to qualifying runs during the event window.

Recommended farming priority during the event

Priority Level	Focus
Highest	Core promotion materials for main team
High	Weapon upgrade components
Medium	Rare enhancement drops
Lower	Common materials available elsewhere

The key is targeting bottleneck materials. Farming common drops with discounted Sanity is useful, but using the discount on scarce items gives significantly more long-term value.

Advanced efficiency tips for Sanity farming

#1 Maximize daily resets

If there is a daily cap, log in consistently. Missing a day equals lost efficiency that cannot be recovered.

#2 Don’t overspend refills early

If the discount is capped daily, using too many refills on Day 1 wastes potential later value. Spread your investment across the event period.

#3 Track material needs in advance

Check upcoming promotions or upgrades so you don’t overfarm one material and ignore another critical bottleneck.

#4 Balance progression with stamina economy

You still need to clear story and other content. Avoid tunnel vision farming if it blocks overall advancement.

How to make the most of the March 2–12 window

This event is essentially a temporary acceleration period. Instead of thinking “farm more,” think “farm smarter.” You are converting the same Sanity into greater output.

The players who benefit most are not those who hoard endlessly, but those who:

• Maintain daily discipline
• Spend discounted attempts strategically
• Use stored rewards at optimal times
• Plan materials before farming

Sanity Discount event rewards impact

The Sanity Discount event in Arknights: Endfield is less about massive one-day spending and more about consistent daily optimization. If you avoid capping your Sanity, plan your targets in advance, and respect possible daily limits, you’ll gain far more progression value than casual farming.

Benefit Type	Impact
Faster Promotions	Reach higher power tiers sooner
Quicker Weapon Upgrades	Improved combat efficiency
Reduced Resource Bottlenecks	Smoother mid-game progression
Better Long-Term Economy	Higher return per Sanity spent

Treat the event as a strategic boost window, not just a stamina sale, and you’ll come out of March 12 significantly ahead.