The Alert Tower is the main scouting and intelligence-defense building in Last War Survival. It helps you detect incoming troops, gather information about other bases, and limit the details enemy players can see when scouting your base. This guide explains how Scout Level, Hidden Info Count, and Alert Tower upgrades work.
Understanding the Alert Tower
The Alert Tower becomes available when your Headquarters reaches level 10. If you have not reached this requirement, check the Last War Headquarters upgrade guide for the necessary buildings, resources, and upgrade times.
The Alert Tower serves two main purposes. First, it detects incoming enemy troops and provides information about their movements. Second, it controls how much information you can collect when scouting another base and how much of your own account information remains hidden from enemy scouts.
Upgrading the Alert Tower increases its scouting capabilities and may reveal additional information about enemy bases. It also improves your ability to limit the information that other players can gather about your base.
How Scout Level and Hidden Info Count Work Together
The Alert Tower has two important intelligence-related statistics:
- Scout Level: Determines the amount and type of information you can obtain when scouting another base.
- Hidden Info Count: Reduces the effective Scout Level of enemies who scout your base.
For example, suppose an Alert Tower has a Scout Level of 14 and the target base has a Hidden Info Count of 5. The effective intelligence level would be calculated as 14 minus 5, resulting in Scout Level 9 information.
This means the attacking player may still receive basic information, but some advanced account details will remain hidden.
Important Note: Hidden Info Count becomes relevant at higher Headquarters and Alert Tower levels. According to the listed progression data, it reaches 5 at later upgrade milestones.
Alert Tower Upgrade Guide
The table below shows selected Alert Tower upgrade milestones, including resource costs, power, Scout Level, Hidden Info Count, and the information unlocked at each stage.
| Level | Iron | Food | Coin | Upgrade Time (Approx.) | Power | Anti-Scout Probability | Hidden Info Count | Scout Level | Scout Information |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 13 | 13 | – | 3s | 600 | 0% | 0 | 1 | Basic Scout Info |
| 5 | 160,000 | 160,000 | – | 1h 48m 14s | 3,000 | 100% | 1 | 1 | Basic Scout Info |
| 10 | 1,000,000 | 1,000,000 | 130,000 | 9h 13m 39s | 9,500 | 100% | 5 | 2 | Squad Power |
| 15 | 5,000,000 | 5,000,000 | 640,000 | 19h 52m 2s | 23,300 | 100% | 5 | 7 | Decoration Power |
| 20 | 44,000,000 | 44,000,000 | 5,600,000 | 4d 10h 51m 2s | 56,900 | 100% | 5 | 12 | Drone Level |
| 25 | 210,000,000 | 210,000,000 | 27,000,000 | 19d 4h 6m 37s | 134,800 | 100% | 5 | 17 | Exclusive Weapon Level |
| 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 |
Important considerations:
- The resource costs shown above are base values. Research, alliance bonuses, profession effects, and other benefits may reduce the actual requirements.
- Higher Alert Tower levels reveal more detailed information about enemy accounts.
- Upgrade times become significantly longer at advanced levels, so construction speedups should be used carefully.
- Always check the current in-game requirements before beginning an upgrade.
Levels 31 to 35 in the Age of Oil
After your warzone progresses beyond Season 2 and enters the Age of Oil, buildings can advance beyond level 30. You must complete the relevant HQ Expansion research in the Tech Center before accessing these additional levels.
Alert Tower levels 31 through 35 require Oil in addition to Iron, Food, and Coin. However, the listed Scout Level, Hidden Info Count, and available scouting information remain unchanged from level 30.
| Level | Iron | Food | Coin | Oil | Power | Anti-Scout Probability | Hidden Info Count | 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 |
| 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 |
How to Use Scouting Information
Scouting should help you decide whether an attack is worth the risk. Depending on your Alert Tower level, a scout report may reveal squad power, decorations, drone level, exclusive weapon progress, and troop information.
However, one statistic should not determine your entire decision. Compare several factors before attacking:
- Squad Power: Indicates the general strength of the defending lineup.
- Hero and Troop Development: Strong heroes and developed troop statistics may make a base more difficult to attack than its visible power suggests.
- Drone Level: A developed drone can provide important combat bonuses.
- Hospital Information: A high-level scout report may show whether many of the target’s troops are currently injured.
- Alliance Position: Bases located near active alliance members may receive rapid reinforcement.
For a better understanding of the attributes that affect combat performance, review the Last War troop stats guide.
Tips for Improving Your Alert Tower Strategy
- Reach important scouting milestones: Upgrade the Alert Tower when the next level unlocks information that is useful for your current gameplay.
- Scout before committing troops: Use the available report to estimate risk instead of attacking a base without information.
- Do not rely only on visible power: Decorations, drones, exclusive weapons, heroes, and troop statistics can affect the actual difficulty of a battle.
- Protect your own information: Higher Hidden Info Count can reduce the details available to enemy scouts.
- Review incoming attacks: Use Alert Tower warnings to decide whether to defend, reinforce, shield, or relocate.
- Maintain other defensive buildings: The Alert Tower provides intelligence but does not stop an attack directly. Keep your Wall, troops, heroes, and recovery buildings properly developed.
- Monitor Hospital capacity: Major battles can quickly fill your Hospital. Review the Last War Hospital guide before entering prolonged combat.
- Save resources for meaningful upgrades: Advanced Alert Tower levels require large amounts of Iron, Food, Coin, and Oil. Balance these costs with your Headquarters and military priorities.
Is the Alert Tower Worth Upgrading?
The Alert Tower is worth upgrading when additional intelligence can improve your attack and defense decisions. Early upgrades help identify incoming activity, while later levels reveal more detailed information about enemy accounts.
However, the building should remain balanced with your other progression priorities. A high Scout Level is useful, but it cannot compensate for weak troops, underdeveloped heroes, limited Hospital capacity, or poor base defenses.
At levels above 30, upgrade costs increase substantially while the listed scouting information remains the same. Consider whether the additional building power justifies the resources before prioritizing these late-game levels.
How the Alert Tower Supports Account Progression
The Alert Tower does not directly increase combat statistics, but better intelligence can help protect the resources, troops, and progress already invested in your account. Accurate scouting helps you avoid unfavorable attacks, while incoming troop alerts give you time to prepare a response.
Developing a competitive account requires more than one building. Strong scouting is most effective when combined with upgraded defenses, trained troops, developed heroes, research, and sufficient recovery capacity. Players who prefer to begin with established infrastructure can explore a Last War Survival account for sale through Heaven Guardian. Available accounts may include upgraded Alert Towers, higher Headquarters levels, stronger troop formations, and developed hero lineups, with lifetime warranty coverage and premium support for a safer purchase experience.
FAQs
Q: When can I build the Alert Tower?
A: The Alert Tower becomes available when your Headquarters reaches level 10.
Q: What does Scout Level control?
A: Scout Level determines how much information you can obtain when scouting another player’s base.
Q: What does Hidden Info Count do?
A: Hidden Info Count reduces the effective Scout Level of enemies who scout your base, limiting the details they can see.
Q: Does 100% Anti-Scout Probability prevent all scouting?
A: It does not necessarily prevent the scouting action itself. Instead, it limits or conceals information available to the enemy scout.
Q: Should I upgrade the Alert Tower to the maximum level immediately?
A: Not always. Prioritize levels that unlock useful scouting information and balance the cost with other essential buildings.
Q: Can scouting guarantee that I will win an attack?
A: No. Scout reports provide useful information, but combat results also depend on heroes, troops, research, drones, gear, buffs, and reinforcements.
Q: Are there other systems that affect scouting?
A: Research, account bonuses, and other progression systems may influence scouting or information protection.
Q: Does the Alert Tower directly defend my base?
A: No. It provides warnings and intelligence, but your troops, heroes, Wall, and other defensive systems handle the actual battle.
Q: What information can a high-level Alert Tower reveal?
A: Higher levels can reveal information such as squad power, decoration power, drone level, exclusive weapon level, and details about units in the Hospital.
Conclusion
The Alert Tower is an important intelligence building in Last War Survival. It helps detect incoming troops, improves the information available in scout reports, and limits what enemy players can learn about your base.
Upgrade it according to the scouting information you need, but keep its development balanced with your troops, heroes, defenses, research, and Hospital capacity. Used properly, the Alert Tower can help you make safer attack decisions and respond more effectively to incoming threats.
Learn more about Last War on the official website.
