Last War: Survival – Wall Guide, Upgrades & Defense

by | Jul 17, 2026

Last War Survival Wall upgrade, durability, and base defense guide

The Wall in Last War: Survival is an important defensive building that affects base durability, burning resistance, and recovery after an attack. It also allows you to assign defensive squads when you want troops and heroes to protect your base.

However, placing squads on the Wall is not always the best choice, especially for newer players who cannot absorb heavy troop losses. This guide explains how Wall defense works, when to assign squads, and how to plan upgrades from level 1 to level 35.

How the Wall Works in Last War: Survival

The Wall acts as part of your base’s defense when another player attacks you. Its level affects durability-related benefits and the speed at which the Wall recovers after taking damage.

The Wall can support up to five defensive squads, although the exact number you should assign depends on your troop strength, heroes, hospital capacity, and the strength of the expected attacker.

A higher Wall level provides several advantages:

  • More base power
  • Slower durability loss while the base is burning
  • Faster durability restoration
  • Better long-term defensive development
  • Access to higher building progression requirements

The Wall does not make your base impossible to defeat. Strong heroes, developed troops, research, gear, drone progression, and alliance support remain important parts of defense.

Should Beginners Assign Squads to the Wall?

Newer players should be careful about assigning their strongest squads to Wall defense. Defending against a much stronger attacker may cause significant wounded troops and increase healing costs.

Leaving the Wall undefended may be the safer choice when:

  • Your heroes and troops are significantly weaker than nearby opponents.
  • Your hospital capacity is limited.
  • You are unable to remain online during a conflict.
  • You do not have alliance reinforcements available.
  • Your base contains few unprotected resources.

Defending becomes more reasonable when your squads, research, hospital, heroes, and alliance support are strong enough to make the battle worthwhile.

Wall Upgrade Requirements and Benefits

Wall upgrades require Iron and Food at lower levels. Coins become necessary from level 9, while Oil is listed as a requirement from level 31 onward.

Each level increases power and improves both durability protection and restoration speed. The table below lists the supplied upgrade values from level 1 to level 35.

Level

Iron required for Last War Survival Wall upgrades

Iron

Food required for Last War Survival Wall upgrades

Food

Coins required for Last War Survival Wall upgrades

Coin

Oil Upgrade Time Power Slower Durability Loss When Burning Faster Durability Restoration
1 6s 600 1% 1%
2 68 23 4s 1,200 2% 2%
3 1,000 340 7s 1,800 3% 3%
4 2,500 840 1m 57s 2,400 4% 4%
5 20,000 6,800 11m 42s 3,000 5% 5%
6 91,000 30,000 35m 6s 3,600 6% 6%
7 240,000 81,000 1h 33m 36s 4,200 7% 7%
8 390,000 130,000 3h 7m 12s 5,000 8% 8%
9 620,000 210,000 130,000 4h 22m 5s 6,100 9% 9%
10 750,000 250,000 160,000 5h 32m 25s 7,300 10% 10%
11 1,900,000 620,000 400,000 6h 33m 43s 9,100 11% 11%
12 3,200,000 1,100,000 680,000 9h 21m 46s 11,500 12% 12%
13 3,500,000 1,200,000 740,000 1d 12h 10m 17s 14,000 13% 13%
14 4,900,000 1,600,000 1,000,000 1d 15h 49m 22s 16,900 14% 14%
15 6,800,000 2,300,000 1,500,000 1d 21h 7m 18s 20,400 15% 15%
16 12,000,000 4,100,000 2,600,000 2d 5h 34m 12s 25,000 16% 16%
17 16,000,000 5,300,000 3,400,000 2d 17h 23m 52s 30,200 17% 17%
18 28,000,000 9,200,000 5,900,000 3d 5h 57m 25s 37,100 18% 18%
19 33,000,000 11,000,000 7,100,000 4d 5h 32m 44,600 19% 19%
20 60,000,000 20,000,000 13,000,000 5d 12h 32m 48s 54,700 20% 20%
21 84,000,000 28,000,000 18,000,000 6d 21h 6m 38s 66,700 21% 21%
22 110,000,000 36,000,000 23,000,000 8d 15h 26m 37s 80,300 22% 22%
23 140,000,000 45,000,000 29,000,000 9d 4h 31m 52s 95,600 23% 23%
24 170,000,000 57,000,000 36,000,000 10d 15h 51m 8s 112,600 24% 24%
25 290,000,000 96,000,000 62,000,000 13d 14h 12m 26s 134,800 25% 25%
26 400,000,000 130,000,000 86,000,000 18d 15h 5m 24s 160,800 26% 26%
27 530,000,000 180,000,000 110,000,000 25d 16h 19m 34s 190,700 27% 27%
28 740,000,000 250,000,000 160,000,000 34d 8h 31m 3s 226,200 28% 28%
29 1,000,000,000 340,000,000 220,000,000 44d 46m 33s 267,600 29% 29%
30 1,400,000,000 480,000,000 310,000,000 57d 14h 30m 6s 316,600 30% 30%
31 1,600,000,000 530,000,000 340,000,000 675,000 368,600 31% 31%
32 1,700,000,000 580,000,000 370,000,000 1,080,000 422,500 32% 32%
33 1,900,000,000 640,000,000 410,000,000 1,836,000 479,300 33% 33%
34 2,000,000,000 670,000,000 430,000,000 3,304,800 537,500 34% 34%
35 2,100,000,000 710,000,000 450,000,000 6,609,600 597,200 35% 35%

Note: Treat these as supplied or approximate values. Research, buffs, survivor bonuses, VIP benefits, alliance assistance, and game updates may affect the final requirements displayed on your account.

What Does Wall Durability Do?

Wall durability represents part of your base’s ability to withstand continued attacks and burning. When durability falls, the base becomes more vulnerable to being displaced or suffering additional consequences associated with repeated attacks.

Wall upgrades improve two related effects:

  • Slower durability loss: Your base loses durability more slowly while burning.
  • Faster restoration: Lost durability recovers more quickly after the danger has passed.

These benefits become more important during server conflicts, alliance wars, seasonal battles, and other periods when repeated attacks are more likely.

How to Build a Strong Wall Defense

A successful defense depends on more than the Wall level. Your assigned heroes, troop strength, formations, research, and alliance support all contribute to the result.

Assign Your Strongest Suitable Squad

Use heroes and troops that provide the best available defensive performance. Prioritize developed heroes with strong survivability, damage reduction, durability, or relevant squad bonuses.

Review Troop Strength Before Defending

A large troop count does not guarantee a successful defense. Troop tier, hero development, research, formations, and total squad strength also matter.

The Last War Troop Stats guide explains the attributes that influence troop performance and overall combat effectiveness.

Keep Your Hospital Ready

Wall defense can create a large number of wounded troops. Make sure your hospital has enough capacity before expecting repeated attacks.

Review the Last War Hospital guide to understand why healing capacity and upgrade planning matter during combat-heavy periods.

Request Alliance Reinforcements

Alliance members may be able to reinforce your base during an expected attack. Coordinate before major battles instead of waiting until the attack has already started.

Protect Resources Before Conflict

Use resources on useful upgrades, research, or troop development before a dangerous event begins. Keeping excessive unprotected resources can make your base a more attractive target.

How the Alert Tower Supports Wall Defense

Defense begins before the enemy reaches your Wall. Information about incoming attacks can help you decide whether to defend, request reinforcements, activate protection, move troops, or avoid the battle.

The Last War Alert Tower guide explains how the building supports attack awareness and defensive preparation.

Using the Alert Tower and Wall together creates a more complete defensive system:

  1. Detect or review an incoming threat.
  2. Evaluate the attacker’s strength.
  3. Decide whether defending is worthwhile.
  4. Assign suitable squads or remove them from defense.
  5. Request alliance assistance if needed.
  6. Prepare healing capacity for possible losses.

When Should You Prioritize Wall Upgrades?

The Wall becomes more important as your account grows and you begin participating in more competitive activities. However, it should not automatically take priority over every building.

Consider prioritizing the Wall when:

  • It is required for your next Headquarters level.
  • Your base frequently takes part in server or alliance conflicts.
  • Durability loss is becoming a recurring problem.
  • Your Wall is far behind the rest of your base.
  • An event rewards construction power.
  • You have enough resources without delaying a more important upgrade.

You may delay the upgrade when your Headquarters, troop buildings, Tech Center, hospital, or another required structure provides greater immediate value.

Wall Progression Beyond Level 30

The supplied table lists Wall levels 31 through 35 and introduces Oil as an additional upgrade resource. These advanced levels also provide higher power and improved durability-related bonuses.

Because the table does not provide upgrade times for levels 31 to 35, confirm those values in the game before publishing exact timing information.

Advanced Wall upgrades require very large resource investments. Plan them around Headquarters requirements, Oil availability, events, and your wider base strategy.

Common Wall Defense Mistakes

Defending Against a Much Stronger Player

Keeping squads on the Wall against an overwhelming attacker may create unnecessary wounded troops without preventing defeat.

Ignoring Hospital Capacity

A defense can be costly even when your Wall is strong. Limited healing capacity may turn a manageable attack into a serious troop loss.

Assuming Wall Level Guarantees Victory

The Wall contributes to defense, but hero quality, troop development, research, formations, gear, and drone strength remain important.

Leaving Valuable Resources Exposed

Holding excessive unprotected resources can increase the impact of an attack. Spend or protect important resources before known conflict periods.

Failing to Review Incoming Attacks

Defending automatically without comparing your strength with the attacker can lead to avoidable losses.

Upgrading the Wall Without Checking Headquarters Requirements

The Wall may be required for Headquarters progression, but upgrading it too early can consume resources needed for another priority structure.

Frequently Asked Questions

How many squads can I assign to the Wall?

The supplied article states that up to five squads can be assigned. Confirm the available slots shown on your account because progression or game updates may affect this system.

Should beginners defend the Wall?

Beginners should defend selectively. Leaving the Wall undefended may reduce unnecessary troop losses when facing much stronger players.

What resources are required for Wall upgrades?

Wall upgrades require Iron and Food, with Coins added from higher levels. The supplied table lists Oil as a requirement from level 31 onward.

Which heroes are best for Wall defense?

Use your strongest suitable defensive formation. Prioritize developed heroes with useful survivability, durability, damage reduction, or squad bonuses.

How do I restore Wall durability?

Wall durability recovers over time, and higher Wall levels improve the listed restoration rate. Check the Wall interface for any available repair or recovery options.

Does Wall level increase troop attack?

The supplied table focuses on power, durability loss, and restoration. Do not assume the Wall directly increases troop attack unless the current in-game description confirms it.

Does the Wall protect all my resources?

No. Resource protection depends on the game’s storage and protection systems. A stronger Wall does not automatically make every stored resource safe.

Should I upgrade the Wall to level 35?

Upgrade beyond level 30 according to Headquarters requirements, available Oil, defensive needs, and resource priorities. The cost is substantial, so avoid upgrading without a clear progression reason.

Can alliance members help defend my base?

Alliance members may be able to provide reinforcements or other support. Coordinate before expected attacks so they have enough time to respond.

Conclusion

The Wall is an important part of base defense in Last War: Survival, but its effectiveness depends on the rest of your account. Strong heroes, developed troops, hospital capacity, research, attack awareness, and alliance coordination all influence whether defending is worthwhile.

Upgrade the Wall according to Headquarters requirements and your exposure to PvP conflict. Before assigning squads, compare your strength with the attacker and consider whether the possible defense is worth the healing cost.

Developing a defensible base requires repeated Wall upgrades, strong defensive squads, advanced research, hospital capacity, and a large resource investment. Players who prefer to begin with an established base and more developed combat progression can explore a Last War account for sale through Heaven Guardian. Available listings may include different Headquarters levels, Wall development, hero lineups, troop strength, resources, lifetime warranty, and premium support, depending on the selected account.

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