Last War: Survival – Unlock Unit X Guide & Costs

Unit X in Last War: Survival is the research unlock for T10 troops. To reach it, you need a level 30 Barracks, a level 30 Tech Center, and deep progress through the Special Forces technology tree.

The final documented research block from Advanced Protection through Unit X costs approximately 10.59 billion Gold/Coins and 76,480 Valor Badges. That figure does not include all of the earlier Special Forces research, the resources needed to build Barracks 30 and Tech Center 30, or the cost of training and promoting troops after T10 is unlocked.

What Is Unit X in Last War?

Unit X is the technology that unlocks T10 troops at Barracks level 30. T10 is a major late-game combat breakpoint because promoted troops provide considerably stronger troop statistics than lower tiers and improve the combat contribution of the soldiers attached to your squads.

Unit X was historically described as the highest troop level, but that is no longer universally accurate. On servers that have progressed far enough, T11 troops become available later through post-Season 4 progression. T10 remains important because it is a prerequisite for that later troop system.

Unit X Base Stats

Current reference data lists the following base values for a T10 Unit X soldier:

Statistic	Unit X / T10 Value
Power	1,647
Morale	600
Troop Load	2,200
Hero HP	2,514
Hero Attack	20
Hero Defense	4

These are troop-level reference values. Your total squad performance also depends on heroes, research, decorations, drone development, exclusive weapons, professions, troop count, and other account bonuses.

Power should also not be confused with direct damage. Each troop stat contributes differently to combat, so unlocking T10 is most effective when the rest of your account is developed alongside it.

Last War Unit X Requirements

The documented final requirements for Unit X are:

• Level 30 Barracks
• Level 30 Tech Center
• Advanced Protection research
• HP Boost III research
• Attack Boost III research
• Defense Boost III research
• Unit X research

These are the final gates. You must also complete enough of the earlier Special Forces tree to reach these technologies, so a new HQ30 account cannot simply jump directly to Advanced Protection.

Read the Last War Barracks guide for troop-tier building requirements and the Last War Tech Center guide when planning your research infrastructure.

Unit X Special Forces Research Path

The final documented sequence toward T10 is:

1. Advanced Protection
2. HP Boost III
3. Attack Boost III
4. Defense Boost III
5. Unit X

HP Boost III, Attack Boost III, and Defense Boost III are not isolated technologies you can immediately select after unlocking Special Forces. The tree contains prerequisite nodes and completion thresholds leading toward them.

If T10 is your primary objective, inspect the entire tree and identify the minimum prerequisite route before spending large amounts of Valor Badges on optional branches.

How Much Does Unit X Cost?

The following table covers the documented final research block leading into Unit X:

Research	Gold / Coins	Valor Badges
Advanced Protection	1.72B	16,960
HP Boost III	2.77B	19,040
Attack Boost III	2.77B	19,040
Defense Boost III	2.77B	19,040
Unit X	560M	2,400
Total	10.59B	76,480

The rows total approximately 10.59 billion in research currency and exactly 76,480 Valor Badges.

However, 76,480 Valor Badges is not the total cost of starting Special Forces from zero and reaching T10. It covers the listed final technologies only.

Costs Not Included in the 10.59B and 76,480 Total

• Earlier Special Forces prerequisite research
• Barracks upgrades through level 30
• Tech Center upgrades through level 30
• Headquarters and prerequisite building upgrades
• Any additional resources required by earlier technologies
• Research speed-ups
• Troop training after Unit X is unlocked
• Promotion of existing lower-tier soldiers to T10

Why Valor Badges Are Usually the Biggest T10 Bottleneck

Gold and other normal resources can be generated through buildings, gathered from the world map, obtained from activities, or held in resource chests. Valor Badges have fewer repeatable sources and are shared between several advanced technology trees.

Important Valor Badge sources include:

• Alliance Duel individual reward chests
• Warzone VS rewards
• Glittering Market offers when available
• Limited events
• Paid progression offers

Alliance Duel is particularly important because its individual chests provide recurring Valor Badge income. Developing useful Alliance Duel research can also unlock additional reward chests and improve future badge generation.

See the Last War Valor Badge guide for detailed farming and spending priorities.

Should You Rush Unit X?

For competitive HQ30 players, pushing toward T10 is usually a strong long-term goal. That does not mean every account should ignore all other development until Unit X is finished.

Rush Unit X When

• Your Barracks and Tech Center are already approaching level 30.
• Your main squad and gear are reasonably developed.
• You participate heavily in PvP, Alliance Duel, and server competition.
• You already have substantial Special Forces progress.
• Valor Badges are your primary remaining bottleneck.
• You can continue funding troop training once T10 is unlocked.

Slow Down the Rush When

• Your heroes are significantly underdeveloped.
• Your gear, drone, or hero skills offer much cheaper immediate improvements.
• You cannot support the Gold/Coin requirements of late Special Forces research.
• Your Barracks or Tech Center is still far below level 30.
• Your hospital and troop capacity cannot support the combat you intend to do.
• You have not developed the Alliance Duel research needed for sustainable Valor Badge income.

A higher troop tier strengthens an already functional squad. It does not automatically fix weak hero stars, poor gear, bad squad composition, or missing research elsewhere.

Fastest Practical Path to Unlock Unit X

If T10 is your clear priority, use the following approach:

1. Push Headquarters progression toward 30. Barracks and Tech Center cannot reach the required level without the necessary base progression.
2. Develop Tech Center and Barracks together. Avoid finishing Barracks 30 months before your research can reach Unit X.
3. Build Alliance Duel research enough to improve badge income. Additional recurring chests can help fund the Special Forces grind.
4. Map the shortest required Special Forces path. Do not automatically max every side node before T10.
5. Save Valor Badges. The documented last five technologies alone need 76,480.
6. Stockpile Gold/Coins and resource chests. The final research block exceeds 10 billion.
7. Complete Advanced Protection.
8. Finish HP Boost III, Attack Boost III, and Defense Boost III.
9. Complete Unit X research.
10. Train or promote T10 troops. Unlocking the technology does not automatically convert your army.

How to Farm Enough Gold and Resources

The late Special Forces tree consumes enormous amounts of currency. Long-term preparation is more effective than trying to gather everything after reaching the final nodes.

Useful sources include:

• World-map Gold gathering
• Base resource production
• Resource choice chests
• Alliance rewards
• Daily activities
• Campaign rewards
• Event milestones
• Seasonal rewards

Keep choice resource chests unopened until you know which resource is actually limiting the next upgrade. This preserves flexibility instead of converting every chest into Gold too early.

How to Earn Valor Badges Faster

Maximize Alliance Duel Individual Chests

Alliance Duel is the key repeatable source to focus on. Prepare resources for each day’s scoring objectives so you can consistently open your personal reward chests.

Improve Alliance Duel Research

Premium Rewards research can unlock additional individual chests. This creates a useful long-term loop: spend some early badges improving Duel rewards, then collect more badges from future competitions.

Save Badges for Special Forces Once Your Reward Economy Is Ready

After your Alliance Duel progression is strong enough, shift your badge reserve toward the Unit X route instead of distributing badges across multiple advanced technology trees.

Use the Right Alliance Duel Timing

Valor Badge consumption can contribute to Alliance Duel Age of Science scoring when you launch eligible research. If a Special Forces upgrade is not urgent, timing it during the appropriate Duel day can extract additional value from badges you were already going to spend.

How to Reduce Unit X Research Time

The resource cost is only part of the grind. Late Special Forces technologies also have substantial timers.

Use Research Speed Bonuses Before Starting

Activate any applicable research-speed bonuses before launching a major technology rather than after the timer has already started.

Use Suitable Tech Center Survivors

Assign survivors that improve research performance where applicable before beginning the upgrade.

Request Alliance Help

Alliance assistance reduces research time after the technology begins. It does not reduce the required Valor Badges or research resources.

The Last War Alliance Support Hub guide explains how alliance assistance affects long development timers.

Save Research Speed-Ups for Long Nodes

Using research-specific speed-ups on short early technologies usually provides less strategic value than preserving them for the expensive final Special Forces path.

Coordinate With Scoring Events

If you can delay completion without blocking important progression, align research with Alliance Duel, Arms Race, or another active event that rewards technology development or speed-up use.

How Long Does It Take to Unlock Unit X?

There is no reliable universal number because the answer depends more on your starting position than the final research timer.

An account already at Barracks 30 with deep Special Forces progress and a large Valor Badge reserve may finish relatively quickly. An account that has just reached HQ30 but lacks prerequisite research can still have a long grind ahead.

The largest variables are:

• Current Special Forces completion
• Valor Badge balance and weekly income
• Available Gold/Coins
• Tech Center level
• Barracks level
• Research speed
• Research speed-up inventory
• Alliance help
• Spending level

Do not plan around claims that Unit X always takes a fixed number of days.

Is Unit X Worth Unlocking?

Yes for most established players. T10 is a permanent military progression milestone and remains important even after later T11 systems become available.

Benefits include:

• Higher troop Power
• Higher Morale
• Greater Troop Load
• More troop-contributed Hero HP
• More troop-contributed Hero Attack and Defense
• Stronger performance from promoted armies
• A required foundation for later T11 progression

The value is highest for players who already have a competitive main squad. T10 troops attached to underdeveloped heroes will not perform like T10 troops supporting a strong five-hero formation with proper gear and research.

Do You Need Every Barracks at Level 30?

No. You need a Barracks capable of training T10 troops once Unit X research is completed. Current troop progression references list Barracks 30 plus Unit X research as the T10 breakpoint.

Multiple Barracks still have value because each building can operate its own training or promotion queue. Some players intentionally keep Barracks at different troop-tier breakpoints to make staged troop promotion more efficient during scoring events.

If your only goal is unlocking T10 as quickly as possible, prioritize getting at least one Barracks to level 30 rather than delaying the milestone simply to make every Barracks identical.

What Happens After You Unlock Unit X?

Completing Unit X research unlocks the ability to produce T10 troops. It does not instantly turn your existing army into T10.

You must then either:

• Train new T10 troops in a qualifying Barracks, or
• Promote eligible lower-tier troops to T10.

Prepare resources and training speed-ups before the research finishes so you can make immediate use of the new tier.

Should You Promote T9 Troops or Train New T10?

For an established account with a large T9 army, promotion is usually the practical way to convert existing troop strength into T10. Fresh training is useful when you also need to expand your total army size.

Promote Existing Troops When

• Your Drill Grounds already contain large numbers of T9 or lower troops.
• You want to increase troop quality without expanding army size as much.
• A troop-training event rewards promotion.
• Your Barracks setup supports an efficient promotion chain.

Train New T10 Troops When

• Your total troop count is still low.
• You have unused Drill Ground capacity.
• You need additional soldiers rather than only stronger ones.
• Fresh training fits your current event strategy better.

Training and promotion decisions should consider current event scoring as well as raw time and resource cost.

Unit X vs. T11: What Changes Later?

T10 is no longer the end of troop development on sufficiently mature servers. After later seasonal progression, T11 becomes another major goal.

The important point for a player currently working toward Unit X is that T10 is still required first. T11 uses a different late-game system involving Season 4 Off-Season progression, the Armament Institute, additional research materials, and a higher Barracks requirement.

Do not delay T10 simply because T11 exists. Unit X is part of the path toward that later progression.

F2P vs. Spender Unit X Strategy

F2P and Low-Spending Players

Valor Badges are usually the resource to protect most carefully. Build a reliable Alliance Duel income, avoid badge-heavy side projects that do not support your main goal, and coordinate the Barracks, Tech Center, and Special Forces path rather than rushing only one of them.

Keep enough normal resources for hero, gear, and base progression as well. Reaching T10 with an otherwise neglected account can be less effective than reaching it slightly later with a stronger main squad.

Spenders

Research packs and additional progression resources can shorten the grind, but calculate the entire remaining Special Forces path rather than buying against only the next node.

For players who prefer to skip a large portion of the HQ30 and T10 development process, an established Last War account for sale is an optional progression route. Compare Unit X status, Special Forces research, hero strength, Barracks levels, Tech Center progression, and troop counts rather than relying only on headline account power.

Common Unit X Mistakes

Thinking 76,480 Valor Badges Covers the Entire Special Forces Tree

It does not. That figure covers the listed final technologies from Advanced Protection through Unit X, not every prerequisite that leads to them.

Saving Gold but Ignoring Valor Badges

You can have billions of Gold ready and still remain blocked by the much slower Valor Badge grind.

Spending Valor Badges Across Too Many Trees

Alliance Duel, Special Forces, Siege to Siege, Defense Fortification, and other eligible technologies compete for the same limited resource. Pick milestones deliberately.

Finishing Barracks 30 Too Early

Barracks 30 alone does not unlock T10. Coordinate it with Tech Center 30 and Special Forces research.

Assuming Unit X Automatically Upgrades Your Army

Research only unlocks the troop tier. Existing troops still need to be promoted, or new T10 soldiers must be trained.

Using the Wrong Unit X Stat Values

Current reference data lists Hero Attack at 20 and Hero Defense at 4 for a T10 Unit X troop. Older or incorrectly transcribed tables may show different numbers.

Calling T10 the Final Troop Tier

T10 remains a major milestone, but later servers can progress to T11 after the required seasonal and Armament systems become available.

Ignoring Heroes, Gear, and Drone Progression

Troop tier is only one layer of combat strength. Strong T10 armies still depend on the quality of the squads commanding them.

FAQs

What is Unit X in Last War?

Unit X is the Special Forces technology that unlocks T10 troops. You also need a level 30 Barracks to train the tier.

What do you need to unlock Unit X?

The final documented requirements include Barracks 30, Tech Center 30, Advanced Protection, HP Boost III, Attack Boost III, Defense Boost III, and Unit X research, plus all earlier prerequisite research needed to reach those nodes.

How many Valor Badges do you need for Unit X?

The documented final research block from Advanced Protection through Unit X costs 76,480 Valor Badges. Your complete Special Forces journey requires additional badges for earlier prerequisite technologies.

How much Gold does the Unit X research path cost?

The five listed final technologies total approximately 10.59 billion Gold/Coins. This does not include earlier Special Forces research or the resources required for Barracks, Tech Center, and other building upgrades.

Do you need Barracks level 30 for T10?

Yes. T10 requires Barracks level 30 plus completion of Unit X and its Special Forces prerequisite path.

Is Unit X the highest troop tier in Last War?

Not on all current servers. Unit X is T10, while T11 becomes available later through post-Season 4 progression. T10 remains a required milestone before progressing to T11.

Conclusion

Unlocking Unit X is one of the biggest HQ30 milestones in Last War: Survival. Plan for a level 30 Barracks and Tech Center, deep Special Forces research, and a large Valor Badge reserve; the final five documented technologies alone require 76,480 badges and approximately 10.59 billion Gold/Coins.

Focus your resources on the required path, prepare enough training resources to promote your army once T10 unlocks, and remember that Unit X is now a stepping stone toward later T11 progression rather than the permanent end of troop development. For more current progression, research, hero, and event advice, browse the latest Last War Survival guides on Heaven Guardian.