Sanity Guide Arknights: Endfield – How to Use Stamina Without Wasting Progress!

Sanity is one of the most important resources in Arknights: Endfield, even though it does not look complex at first. No matter how strong your operators are, your progress will slow down fast if Sanity is handled poorly. Also check out our Arknights Endfield Codes for more rewards!

Almost every long-term upgrade depends on spending Sanity correctly, making it the true limiter of account growth. This guide explains how Sanity works, how to recover it, and how to spend it efficiently so your progression stays smooth from early game to mid-game.

What Sanity Is in Arknights: Endfield

Sanity is the stamina system that controls how often you can run farming content. It is mainly consumed when entering Protocol Space stages, which are the primary source of upgrade materials. Key Sanity characteristics:

• Sanity regenerates automatically over time
• There is a fixed maximum cap
• Most Sanity usage comes from farming stages
• Regeneration stops when Sanity reaches the cap

If your Sanity stays full for long periods, you are losing free progress.

How Sanity Regeneration Works

Sanity recovers passively as long as it is below the maximum limit. This recovery happens in real time, even when you are offline. Because of this, the most important rule is simple: never let Sanity sit at full capacity. When Sanity is capped:

• Regeneration pauses
• Farming opportunities are lost
• Overall progression slows down

Logging in briefly to spend Sanity is often enough to keep growth steady.

2 Ways to Recover Sanity

Passive Recovery

This is the main source of Sanity. It requires no items and works automatically. As long as your Sanity is not full, it will continue to refill.

Sanity Recovery Items

There are consumables that instantly restore Sanity, such as emergency boosters or similar items. These are limited and should not be used casually.

Best times to use recovery items:

• Limited-time events
• Heavy farming sessions
• Catching up after missing days

Using them too early usually gives poor value.

How Sanity Is Spent

Sanity is mostly consumed when running Protocol Space stages. Each run has a fixed cost, and higher difficulty stages require more Sanity but give better rewards. General rule:

• Low cost equals basic rewards
• High cost equals stronger materials

As your team improves, you should move toward higher-cost runs to get more value from each Sanity point.

All Sanity for Early and Mid Game Guide

Early-Game Sanity Spending Priorities

In the early stages, Sanity should be used to unlock systems and stabilize your main team. Recommended focus:

• Progressing story content that unlocks new features
• Farming promotion materials for your core operators
• Gathering weapon EXP for main damage dealers

Avoid spreading Sanity across too many upgrades at once. Focused spending gives faster results.

Mid-Game Sanity Efficiency Tips

Mid-game is where Sanity management becomes critical. Important principles:

• Farm only stages you can clear consistently
• Prioritize materials that unlock new upgrade tiers
• Stop farming EXP once levels are sufficient
• Invest in a small, balanced team instead of one unit

Efficient Sanity use matters more than raw playtime.

How to Avoid Wasting Sanity

Many players lose progress simply by letting Sanity overflow. Common mistakes:

• Logging out with full Sanity
• Forgetting to farm before closing the game
• Ignoring Sanity during busy days

Simple prevention:

• Log in at least once per day
• Spend Sanity before logging out
• Always leave Sanity below the cap

Small habits make a big difference over time.

Simple Daily Sanity Routine

A short daily routine is enough to stay efficient. Suggested flow:

1. Check current Sanity level
2. Spend Sanity on needed materials
3. Complete daily objectives while farming
4. Log off with Sanity still regenerating

This keeps progress steady without long sessions.

Common Sanity Management Mistakes

• Over-farming low-tier materials that become useless later
• Ignoring promotions that unlock better farming options
• Using Sanity refill items without a clear goal

Sanity is more valuable later when farming efficiency is higher.

Why Sanity Matters Long-Term

Sanity controls the pace of Arknights: Endfield. Players with similar teams can progress at very different speeds based purely on how well they manage this resource. Good Sanity management results in:

• Predictable upgrade flow
• Fewer progression walls
• Less grinding overall
• Faster account growth

Sanity is not just a limiter, it is the engine behind long-term progression.

Sanity should never be treated as something passive or optional. It is a resource that must be spent regularly and thoughtfully. By keeping it below the cap, using recovery items wisely, and focusing on meaningful upgrades, you ensure steady progress without frustration. Manage Sanity well, and the rest of Arknights: Endfield’s systems will fall into place naturally.