Whiteout Survival: Upgrade Your Infantry Camp & Troops

Last updateย : 05/11/2026
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whiteout survival infantry camp

The Infantry Camp is one of the most important military buildings in Whiteout Survival because it lets you train Infantry troops.

Infantry troops are important because they usually act as the frontline of your army. They help absorb damage, protect your other troops, and keep your march alive longer in battles.

Upgrading the Infantry Camp unlocks stronger Infantry tiers, improves training capacity, increases training speed, and eventually leads into Fire Crystal Infantry after your state enters the Age of Fire Crystal.

This guide explains how the Infantry Camp works, all important troop unlocks, upgrade requirements, Fire Crystal upgrades, and the best tips for managing your Infantry progress.

What Is the Infantry Camp in Whiteout Survival? ๐Ÿ•๏ธ

The Infantry Camp is a military building where you train Infantry troops.

You can unlock the Infantry Camp when your Furnace reaches Level 7.

The higher your Infantry Camp level, the stronger Infantry troops you can train. Upgrading it improves access to better troop tiers and increases useful training stats such as:

  • Training capacity
  • Training speed
  • Troop power
  • Lethality
  • Attack
  • Defense
  • Health
  • Load

Because Infantry troops are usually your frontline units, upgrading this building is important for both PvE and PvP progress.

Why Infantry Troops Matter ๐Ÿ›ก๏ธ

Infantry troops are important because they help protect your march.

In many battle situations, Infantry takes the pressure first while your Lancers and Marksmen deal damage from behind. If your Infantry is too weak, your march can collapse faster.

This makes Infantry upgrades valuable for:

Content Why Infantry Helps
Arena Helps your team survive longer
Bear Hunt Supports stronger troop performance
Fortress battles Improves march durability
Sunfire Castle Helps in large-scale fights
State of Power Important for PvP battles
Rally joining Makes your troops more useful

A strong Infantry line gives your army better stability, especially when fighting stronger opponents.

Infantry Camp Unlock Requirement ๐Ÿ”“

The Infantry Camp becomes available when your Furnace reaches Level 7.

Building Unlock Requirement
Infantry Camp Furnace Level 7

Once unlocked, you can start training Tier 1 Infantry and upgrade the building to access higher troop tiers.

Infantry Troop Tier Unlocks ๐Ÿ“Š

There are 11 Infantry troop tiers in Whiteout Survival.

The first 10 tiers are unlocked by upgrading the Infantry Camp. The final tier, Helios Infantry, is unlocked separately through War Academy research.

Infantry Camp Level Unlock
Level 1 Tier 1 Infantry
Level 4 Tier 2 Infantry
Level 7 Tier 3 Infantry
Level 11 Tier 4 Infantry
Level 13 Tier 5 Infantry + Troop Promotions
Level 16 Tier 6 Infantry
Level 19 Tier 7 Infantry
Level 22 Tier 8 Infantry
Level 26 Tier 9 Infantry
Level 30 Tier 10 Infantry
War Academy Research Helios Infantry

The most important early milestone is Level 13, because it unlocks Tier 5 Infantry and troop promotion.

Infantry Camp Upgrade Requirements Level 1โ€“30 ๐Ÿ—๏ธ

Below is the Infantry Camp upgrade chart from Level 1 to Level 30.

Level Furnace Level Wood Coal Iron Meat Upgrade Time Training Capacity Training Speed Unlock
1 7 N/A N/A N/A N/A 2s 17 0.3% Tier 1 Infantry
2 7 140 N/A N/A N/A 9s 22 0.5% None
3 7 645 N/A N/A N/A 45s 26 0.8% None
4 7 1,400 285 N/A N/A 2m 5s 30 1% Tier 2 Infantry
5 7 6,000 1,200 N/A N/A 4m 30s 35 1.3% None
6 7 15,000 3,000 765 N/A 9m 39 1.6% None
7 7 55,000 11,000 2,700 N/A 18m 43 1.8% Tier 3 Infantry
8 8 100,000 20,000 5,000 N/A 27m 48 2.1% None
9 9 200,000 41,000 10,000 N/A 40m 30s 52 2.4% None
10 10 360,000 73,000 18,000 N/A 54m 56 2.6% None
11 11 460,000 92,000 23,000 460,000 1h 7m 30s 61 2.9% Tier 4 Infantry
12 12 580,000 110,000 29,000 580,000 1h 21m 65 3.2% None
13 13 830,000 160,000 41,000 830,000 1h 39m 69 3.4% Tier 5 Infantry + Promotions
14 14 1,100,000 220,000 55,000 1,100,000 2h 6m 76 3.7% None
15 15 1,600,000 320,000 81,000 1,600,000 2h 42m 84 4.0% None
16 16 2,000,000 410,000 100,000 2,000,000 4h 34m 92 4.2% Tier 6 Infantry
17 17 3,200,000 650,000 160,000 3,200,000 5h 29m 101 4.5% None
18 18 4,300,000 870,000 210,000 4,300,000 6h 35m 109 4.8% None
19 19 5,400,000 1,000,000 270,000 5,400,000 9h 52m 117 5.0% Tier 7 Infantry
20 20 7,500,000 1,500,000 370,000 7,500,000 12h 20m 30s 126 5.3% None
21 21 9,500,000 1,900,000 470,000 9,500,000 16h 2m 30s 134 5.6% None
22 22 12,000,000 2,500,000 630,000 12,000,000 1d 4m 142 5.8% Tier 8 Infantry
23 23 15,000,000 3,100,000 780,000 15,000,000 1d 9h 42m 151 6.1% None
24 24 21,000,000 4,200,000 1,000,000 21,000,000 1d 23h 11m 159 6.4% None
25 25 28,000,000 5,700,000 1,400,000 28,000,000 2d 18h 3m 167 6.7% None
26 26 36,000,000 7,300,000 1,800,000 36,000,000 3d 3h 57m 176 6.9% Tier 9 Infantry
27 27 52,000,000 10,000,000 2,600,000 52,000,000 3d 19h 9m 184 7.2% None
28 28 69,000,000 13,000,000 3,400,000 69,000,000 4d 8h 49m 192 7.4% None
29 29 86,000,000 17,000,000 4,300,000 86,000,000 5d 33m 201 7.7% None
30 30 100,000,000 21,000,000 5,800,000 100,000,000 6d 40m 209 8.0% Tier 10 Infantry

As the Infantry Camp level increases, resource costs and upgrade time become much higher. Plan your upgrades around events when possible so your speedups and resources also help you earn event points.

Fire Crystal Infantry Camp Upgrades ๐Ÿ”ฅ

After your state enters the Age of Fire Crystal, you can upgrade the Infantry Camp past Level 30.

These upgrades allow you to train FC Infantry, also called Fire Crystal Infantry.

The troop tier stays the same, but your troops become stronger Fire Crystal versions. For example, regular T8 Infantry can become FC T8 Infantry.

Fire Crystal troops also unlock special Fire Crystal skills:

Fire Crystal Level Unlock
FC3 First Fire Crystal skill
FC8 Second Fire Crystal skill

This makes Fire Crystal Infantry an important long-term goal for players who want stronger combat performance.

Infantry Camp Fire Crystal Upgrade Chart ๐Ÿ”ฅ

Here is the available Fire Crystal Infantry Camp upgrade chart from Level 30-1 to FC3.

Level Furnace Level Wood Coal Iron Meat Fire Crystals Upgrade Time Training Capacity Training Speed Unlock
30-1 FC1 23,000,000 4,700,000 1,100,000 23,000,000 59 1d 1h 12m 214 8.0% None
30-2 FC1 23,000,000 4,700,000 1,100,000 23,000,000 59 1d 1h 12m 219 8.0% None
30-3 FC1 23,000,000 4,700,000 1,100,000 23,000,000 59 1d 1h 12m 224 8.0% None
30-4 FC1 23,000,000 4,700,000 1,100,000 23,000,000 59 1d 1h 12m 229 8.0% None
FC1 FC1 23,000,000 4,700,000 1,100,000 23,000,000 59 1d 1h 12m 234 8.3% FC1 Infantry
FC1-1 FC2 25,000,000 5,000,000 1,200,000 25,000,000 71 1d 8h 24m 239 8.3% None
FC1-2 FC2 25,000,000 5,000,000 1,200,000 25,000,000 71 1d 8h 24m 244 8.3% None
FC1-3 FC2 25,000,000 5,000,000 1,200,000 25,000,000 71 1d 8h 24m 249 8.3% None
FC1-4 FC2 25,000,000 5,000,000 1,200,000 25,000,000 71 1d 8h 24m 254 8.3% None
FC2 FC2 25,000,000 5,000,000 1,200,000 25,000,000 71 1d 8h 24m 259 8.6% FC2 Infantry
FC2-1 FC3 27,000,000 5,500,000 1,300,000 27,000,000 107 1d 15h 36m 264 8.6% None
FC2-2 FC3 27,000,000 5,500,000 1,300,000 27,000,000 107 1d 15h 36m 269 8.6% None
FC2-3 FC3 27,000,000 5,500,000 1,300,000 27,000,000 107 1d 15h 36m 274 8.6% None
FC2-4 FC3 27,000,000 5,500,000 1,300,000 27,000,000 107 1d 15h 36m 279 8.6% None
FC3 FC3 27,000,000 5,500,000 1,300,000 27,000,000 107 1d 15h 36m 284 8.9% FC3 Infantry

Fire Crystal upgrades are expensive, so do not start them without enough Fire Crystals, resources, and speedups prepared.

Best Infantry Camp Upgrade Priorities ๐Ÿงญ

The Infantry Camp is important, but you should upgrade it with a clear plan.

Push to Level 13 Early ๐Ÿ“ˆ

Level 13 is a major milestone because it unlocks Tier 5 Infantry and Troop Promotions.

Troop promotion is useful because it lets you improve lower-tier troops instead of leaving them behind.

If you are still early in the game, reaching this milestone should be one of your important goals.

Push to Level 22 for Tier 8 Infantry โš”๏ธ

Level 22 unlocks Elite Infantry, also known as Tier 8 Infantry.

This is a strong mid-game milestone because Tier 8 troops are much better than earlier troops and are commonly used by growing players.

Push to Level 30 for Tier 10 Infantry ๐Ÿ‘‘

Level 30 unlocks Apex Infantry, also known as Tier 10 Infantry.

This is the highest regular Infantry tier you can unlock directly from the Infantry Camp before moving into Fire Crystal upgrades and later Helios Infantry.

Plan Fire Crystal Upgrades Carefully ๐Ÿ”ฅ

After Level 30, Fire Crystal upgrades become the next major focus.

However, Fire Crystals are valuable and needed for many upgrades. Do not spend them randomly. Prioritize upgrades based on your current goals, events, and alliance needs.

Infantry Camp vs Other Military Buildings โš–๏ธ

Whiteout Survival has multiple troop training buildings, including Infantry, Lancer, and Marksman buildings.

You should not ignore your other troop types, but Infantry is especially important because it protects your march.

Building Type Troop Role Why It Matters
Infantry Camp Frontline troops Helps absorb damage
Lancer Camp Midline troops Supports offense and battle pressure
Marksman Camp Backline troops Helps deal damage

A strong army needs all troop types, but weak Infantry can make your entire march easier to defeat.

Best Tips for Training Infantry ๐Ÿง 

Training stronger Infantry is not only about upgrading the camp. You also need to manage resources, speedups, and timing.

Train Troops Consistently โฑ๏ธ

Keep your Infantry Camp active whenever possible.

Idle training buildings slow down your growth. Even if you are not rushing, consistent training helps you build a larger army over time.

Use Speedups During Events ๐ŸŽ

Training and building speedups are more valuable when used during events that reward upgrades or troop training.

Before using a large number of speedups, check if there is an event that gives points for training troops, upgrading buildings, or using speedups.

Promote Old Infantry When Useful ๐Ÿ”

After unlocking troop promotion, you can promote lower-tier Infantry into stronger versions.

This is useful because it improves old troops instead of wasting their value.

Do Not Forget Resources ๐Ÿ“ฆ

Infantry Camp upgrades require large amounts of Wood, Coal, Iron, and Meat.

If you want smooth progress, keep gathering resources and participating in events that give resource rewards.

Join an Active Alliance ๐Ÿค

An active alliance helps with building upgrades, rallies, events, and overall growth.

Alliance support can make upgrade progress easier, especially when building timers become longer.

Best Infantry Camp Strategy for Free-to-Play Players ๐Ÿ†“

Free-to-play players should focus on efficient upgrades instead of rushing everything.

A good F2P plan is:

Goal Why It Helps
Reach Level 13 Unlocks Tier 5 Infantry and troop promotion
Reach Level 22 Unlocks Tier 8 Infantry
Reach Level 30 Unlocks Tier 10 Infantry
Save Fire Crystals Needed for FC Infantry upgrades
Use speedups during events Gives better value from limited items
Promote lower-tier troops Improves army strength efficiently

The biggest rule is to avoid wasting speedups and Fire Crystals outside useful event windows.

Common Infantry Camp Mistakes to Avoid โš ๏ธ

Ignoring Infantry Upgrades โŒ

Infantry troops are your frontline. If you ignore Infantry upgrades, your march may become weaker even if your damage troops are strong.

Spending Speedups Randomly โณ

Speedups are limited, especially for free-to-play players.

Try to use them during events so you gain extra rewards while upgrading.

Forgetting Troop Promotions ๐Ÿ”

Once troop promotion is unlocked, do not leave too many low-tier troops unused.

Promoting troops can help improve your total army strength.

Rushing Fire Crystal Upgrades Without Planning ๐Ÿ”ฅ

Fire Crystal upgrades are powerful, but they are also expensive.

Make sure you have enough Fire Crystals and resources before committing to major FC upgrades.

Only Focusing on One Troop Type โš–๏ธ

Infantry is important, but your army still needs Lancers and Marksmen.

Use Infantry as a priority, but keep your other military buildings progressing too.

Quick Infantry Camp Upgrade Summary ๐Ÿ“

Here is the simple version:

Priority What to Do
1 Unlock Infantry Camp at Furnace Level 7
2 Upgrade to Level 13 for Tier 5 Infantry and troop promotion
3 Upgrade to Level 22 for Tier 8 Infantry
4 Upgrade to Level 30 for Tier 10 Infantry
5 Start Fire Crystal Infantry upgrades after Age of Fire Crystal
6 Work toward Helios Infantry later through War Academy research

If you are unsure what to focus on, aim for the next troop unlock milestone first.

FAQs

1. When do you unlock the Infantry Camp in Whiteout Survival?

You unlock the Infantry Camp when your Furnace reaches Level 7.

2. What does the Infantry Camp do?

The Infantry Camp lets you train Infantry troops. Upgrading it unlocks stronger Infantry tiers, increases training capacity, and improves training speed.

3. What level unlocks troop promotion for Infantry?

Troop promotion unlocks when your Infantry Camp reaches Level 13, together with Tier 5 Infantry.

4. What level unlocks Tier 10 Infantry?

Tier 10 Infantry, also called Apex Infantry, unlocks when your Infantry Camp reaches Level 30.

5. How do you unlock Fire Crystal Infantry?

Fire Crystal Infantry becomes available after your state enters the Age of Fire Crystal and you upgrade your Infantry Camp past Level 30.

6. How do you unlock Helios Infantry?

Helios Infantry is not unlocked directly from normal Infantry Camp upgrades. It is unlocked separately through War Academy research.

Conclusion

The Infantry Camp is a key building in Whiteout Survival because it controls your Infantry training and troop tier progression.

You unlock it at Furnace Level 7, then upgrade it to unlock stronger Infantry tiers. Important milestones include Level 13 for troop promotion, Level 22 for Tier 8 Infantry, and Level 30 for Tier 10 Infantry.

After your state enters the Age of Fire Crystal, the Infantry Camp can be upgraded further to unlock Fire Crystal Infantry. Later, Helios Infantry becomes available through War Academy research.

For the best results, upgrade your Infantry Camp steadily, train troops consistently, use speedups during events, and plan Fire Crystal upgrades carefully.

For more beginner-friendly building guides, troop upgrade tips, and event strategies, check out our other Whiteout Survival guides on Heaven Guardian.

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