| Building Details | |
|---|---|
| Item Type | Building |
| Unlock Requirement | Headquarters Level 10 |
| Function | Ddetect and manage enemy scouting and attacks while enhancing your own scouting capabilities. |
| Capacity | Capacity grows with each upgrade, providing stronger protection and better scouting abilities as the tower levels up. |
Last War Survival Alert Tower Guide: Introduction
Last War Survival Alert Tower is a vital structure unlocked at Headquarters level 10, acting as your base’s early warning system. It detects incoming scouts and attacks, giving you critical time to respond. Upgrading the Last War Survival Alert Tower boosts your scouting range and accuracy while concealing key base data from enemies. This guide covers its core functions, upgrade benefits, and how it strengthens both your defense and recon strategies in the fight for survival.
Last War Survival Alert Tower Guide: What is the Alert Tower?
The Alert Tower in Last War: Survival is a critical defensive structure unlocked at Headquarters level 10. Acting as an advanced radar system, it detects incoming enemy troops and provides early warnings, allowing players to prepare for attacks by reinforcing defenses or repositioning forces in time.

As the Last War Survival Alert Tower is upgraded, it gains enhanced capabilities—offering more detailed intel on enemy activity and concealing more of your base’s information from enemy scouts. This dual role makes it an essential asset for both defending your base and planning effective reconnaissance missions.
Last War Survival Alert Tower Guide: Understanding Scout Level and Hidden Info Count
In Last War: Survival, the Scout Level and Hidden Info Count determine how much intelligence you can gather—or conceal—during scouting. Upgrading your Alert Tower raises your Scout Level, letting you uncover detailed enemy data like squad power, unit buffs, gear, and more. However, the enemy’s Hidden Info Count, also tied to their Last War Survival Alert Tower level, reduces your effective Scout Level, limiting what you can see.

For example, if your Scout Level is 14 and the enemy has a Hidden Info Count of 5, your effective Scout Level becomes 9—restricting the intel you receive. Importantly, Hidden Info Count starts at zero until HQ Level 22, meaning you can’t hide information from scouts until reaching that milestone. Mastering this balance is key to smart recon and strong defense.
Last War Survival Alert Tower Guide: Upgrading the Alert Tower

Upgrading the Last War Survival Alert Tower is crucial for both offensive and defensive strategies. It requires a significant investment of resources, including Iron, Food, Coins, and eventually Oil as you reach higher levels. The exact amounts of resources required for each level are provided in the upgrade details, but keep in mind that research and bonuses can slightly reduce the actual cost of upgrading.
| Upgrade Benefit | Description | Max Value / Key Milestone |
|---|---|---|
| Anti-Scout Probability | Increases the chance of detecting enemy scouts trying to gather intel on your base. Starts at 0% and grows with each level. | 100% at Alert Tower Level 5 (remains constant afterward) |
| Hidden Info Count | Reduces the effectiveness of enemy scouts by subtracting this value from their Scout Level. | Starts at HQ Level 22, maxes at 5 |
| Scout Level | Determines how much intel you can gather from enemy bases. Higher levels reveal more detailed info (e.g., gear, unit stats, hospital capacity, etc.). | Increases with each upgrade |
| Recon Plane Speed | Boosts the speed at which your scouts return with information. | Improves by 1% per level up to level 11 |
| Alert Tower Upgrade Details |
| Level | Iron | Food | Coin | Upgrade Time (Approx.) | Power | Anti-Scout Probability | Hidden Info Count [Anti-Scout] | Scout Level | Scout Information |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 13 | 13 | – | 3s | 600 | 0% | 0 | 1 | Basic Scout Info |
| 2 | 49,000 | 49,000 | – | 52m | 1,200 | 40% | 1 | 1 | Basic Scout Info |
| 3 | 66,000 | 66,000 | – | 1h 10m | 1,800 | 60% | 1 | 1 | Basic Scout Info |
| 4 | 89,000 | 89,000 | – | 1h 30m | 2,400 | 80% | 1 | 1 | Basic Scout Info |
| 5 | 160,000 | 160,000 | – | 1h 48m 14s | 3,000 | 100% | 1 | 1 | Basic Scout Info |
| 6 | 410,000 | 410,000 | – | 3h 7m 12s | 4,000 | 100% | 2 | 1 | Basic Scout Info |
| 7 | 660,000 | 660,000 | – | 5h | 5,200 | 100% | 3 | 1 | Basic Scout Info |
| 8 | 730,000 | 730,000 | – | 7h | 6,500 | 100% | 4 | 1 | Basic Scout Info |
| 9 | 910,000 | 910,000 | 120,000 | 8h | 8,000 | 100% | 5 | 1 | Basic Scout Info |
| 10 | 1,000,000 | 1,000,000 | 130,000 | 9h 13m 39s | 9,500 | 100% | 5 | 2 | Squad Power |
| 11 | 2,100,000 | 2,100,000 | 270,000 | 10h 9m 1s | 11,700 | 100% | 5 | 3 | Gear Details |
| 12 | 3,000,000 | 3,000,000 | 380,000 | 10h 47m 46s | 14,300 | 100% | 5 | 4 | Skill Details |
| 13 | 3,100,000 | 3,100,000 | 390,000 | 13h 5m 58s | 17,000 | 100% | 5 | 5 | Wall of Honor Power |
| 14 | 3,600,000 | 3,600,000 | 460,000 | 14h 11m 27s | 19,900 | 100% | 5 | 6 | Wall of Honor Details |
| 15 | 5,000,000 | 5,000,000 | 640,000 | 19h 52m 2s | 23,300 | 100% | 5 | 7 | Decoration Power |
| 16 | 8,900,000 | 8,900,000 | 1,100,000 | 1d 3h 48m 51s | 27,800 | 100% | 5 | 8 | Decoration Details |
| 17 | 12,000,000 | 12,000,000 | 1,500,000 | 1d 14h 56m 23s | 33,000 | 100% | 5 | 9 | Tech Power |
| 18 | 20,000,000 | 20,000,000 | 2,600,000 | 2d 6h 30m 56s | 39,700 | 100% | 5 | 10 | Tech Progress |
| 19 | 24,000,000 | 24,000,000 | 3,100,000 | 3d 4h 19m 18s | 47,000 | 100% | 5 | 11 | Drone Power |
| 20 | 44,000,000 | 44,000,000 | 5,600,000 | 4d 10h 51m 2s | 56,900 | 100% | 5 | 12 | Drone Level |
| 21 | 61,000,000 | 61,000,000 | 7,800,000 | 5d 18h 54m 20s | 68,600 | 100% | 5 | 13 | Drone Component Level |
| 22 | 79,000,000 | 79,000,000 | 10,000,000 | 7d 12h 34m 28s | 81,900 | 100% | 5 | 14 | Drone Chip Type |
| 23 | 99,000,000 | 99,000,000 | 13,000,000 | 9d 18h 45m 1s | 96,800 | 100% | 5 | 15 | Drone Chip Level |
| 24 | 120,000,000 | 120,000,000 | 16,000,000 | 13d 16h 39m 1s | 113,200 | 100% | 5 | 16 | Drone Chip Star Level |
| 25 | 210,000,000 | 210,000,000 | 27,000,000 | 19d 4h 6m 37s | 134,800 | 100% | 5 | 17 | Exclusive Weapon Level |
| 26 | 300,000,000 | 300,000,000 | 38,000,000 | 26d 20h 9m 16s | 160,600 | 100% | 5 | 18 | Total Unit Count |
| 27 | 380,000,000 | 380,000,000 | 49,000,000 | 37d 13h 48m 58s | 189,700 | 100% | 5 | 19 | Unit Details |
| 28 | 540,000,000 | 540,000,000 | 69,000,000 | 52d 14h 32m 32s | 224,300 | 100% | 5 | 20 | Unit Buffs |
| 29 | 750,000,000 | 750,000,000 | 96,000,000 | 73d 10h 32m 32s | 265,100 | 100% | 5 | 21 | Hospital Capacity |
| 30 | 1,100,000,000 | 1,100,000,000 | 130,000,000 | 88d 14h 32m 32s | 314,300 | 100% | 5 | 22 | Details of Units in Hospital |
Upgrading the Last War Survival Alert Tower beyond level 30 requires your Warzone to reach the Age of Oil, unlocked during the Season 2 Celebration. You must also complete the HQ Expansion research in the Age of Oil tree to unlock levels 31–35.
These upgrades offer major boosts to scouting and base defense but come with steep costs—requiring large amounts of Iron, Food, Oil, and longer upgrade times. Careful resource planning is essential to balance these powerful improvements with your overall base development.
| Level | Iron | Food | Coin | Oil | Power | Anti-Scout Probability | Hidden Info Count [Anti-Scout] | Scout Level | Scout Information |
|---|---|---|---|---|---|---|---|---|---|
| 31 | 1,200,000,000 | 1,200,000,000 | 150,000,000 | 450,000 | 365,800 | 100% | 5 | 22 | Details of Units in Hospital |
| 32 | 1,300,000,000 | 1,300,000,000 | 160,000,000 | 720,000 | 417,300 | 100% | 5 | 22 | Details of Units in Hospital |
| 33 | 1,400,000,000 | 1,400,000,000 | 180,000,000 | 1,224,000 | 468,800 | 100% | 5 | 22 | Details of Units in Hospital |
| 34 | 1,500,000,000 | 1,500,000,000 | 190,000,000 | 2,203,200 | 520,300 | 100% | 5 | 22 | Details of Units in Hospital |
| 35 | 1,500,000,000 | 1,500,000,000 | 200,000,000 | 4,406,400 | 571,800 | 100% | 5 | 22 | Details of Units in Hospital |
Last War Survival Alert Tower Guide: Benefits of Upgrading
Upgrading your Last War Survival Alert Tower is a strategic investment that pays off significantly in both offensive and defensive aspects. A high-level Alert Tower gives you a critical edge in gathering intelligence on your opponents while safeguarding your base from prying eyes.
| Category | Benefit | Description |
|---|---|---|
| Offensive | Enhanced Scouting | Increases Scout Level, allowing you to gather detailed intel on enemy bases (e.g., gear, units, buffs). |
| Faster Scouting | Improves Recon Plane speed, reducing the time it takes to scout enemy bases. | |
| Defensive | Early Warning System | Detects incoming scouts and attacks, giving you time to prepare. |
| Concealing Information | Increases Hidden Info Count, hiding vital data from enemy scouts. | |
| Deterrent Effect | High Alert Tower levels may discourage enemies from targeting your base. |
Examples of Hidden Information with Higher Hidden Info Count
| Hidden Details | Description |
|---|---|
| Squad Power | Overall strength of deployed troops |
| Gear & Skills | Hero equipment and ability details |
| Wall of Honor / Decorations | Power and details of visual and prestige-based upgrades |
| Tech Power & Progress | Development status of research technologies |
| Drone Stats | Level, components, chip types, chip levels, and star ratings |
| Exclusive Weapon Level | Unique hero weapon enhancement level |
| Unit Count & Details | Troop types, numbers, and associated buffs |
| Hospital Capacity & Occupancy | Maximum healing capacity and details of wounded units |
Last War Survival Alert Tower Guide: Conclusion
The Last War Survival Alert Tower is a key structure that empowers your strategy on every front. By upgrading it, you gain faster, deeper intel on enemies and better protection against scouting. It gives early warnings, hides vital data, and unlocks extra campaign rewards. Whether you’re planning a raid or defending your base, a strong Last War Survival Alert Tower gives you the upper hand. Prioritize its development to strengthen your position and thrive in the harsh world of Last War: Survival.
Frequently Asked Questions (F.A.Q)
❓What is the Anti-Scout Probability?
It’s the chance your Last War Survival Alert Tower has to detect enemy scouts. As you upgrade, this probability increases, preventing enemies from gathering intel about your base.
❓Can I stop enemy scouts from gathering intel?
Yes, with higher Alert Tower upgrades, you improve your Anti-Scout Probability, making it harder for enemy scouts to gather valuable information about your base.
❓How do Alert Tower upgrades affect my strategy?
Upgrading the Last War Survival Alert Tower strengthens your defense, enhances scouting abilities, hides key information from enemies, and boosts reconnaissance, giving you a significant edge in both offense and defense.
❓How does the Scout Level affect scouting?
Scout Level determines the amount of information you can gather about enemy bases. Higher levels reveal more detailed intel, such as unit buffs, gear, and hospital capacity.

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