The Barracks in Last War: Survival trains and promotes troops, increases the number of units you can train in one batch, and unlocks higher troop tiers at specific building milestones. For most players, the important Barracks levels are 4, 6, 10, 14, 17, 20, 24, 27, and 30 because they correspond to the normal progression from T2 through T10 troops.
Barracks level 30 is a major milestone: its reference upgrade cost is 720 million Iron, 720 million Food, and 290 million Coin, with a base Unit Training Cap of 570. Reaching Barracks 30 alone does not unlock T10 troops—you also need to complete the required Unit X research path in the Special Forces technology tree.
★Quick Take
If your main goal is stronger troops, prioritize at least one Barracks toward the next troop-tier breakpoint instead of leveling every Barracks equally. The key milestones are Barracks 14 for T5, 17 for T6, 20 for T7, 24 for T8, 27 for T9, and 30 plus Unit X research for T10.
What Does the Barracks Do in Last War?
The Barracks is the main troop-training building in your base. Each Barracks can maintain its own training queue, allowing you to create new units or promote existing lower-tier troops to the highest tier that particular Barracks can currently support.
Upgrading the building provides three main benefits:
- Higher Unit Training Cap: You can place more troops into one training or promotion batch.
- Higher troop tiers: Specific Barracks levels unlock access to stronger units, although T10 and T11 have additional research or progression requirements.
- Base progression: Barracks levels are required for several Headquarters upgrades, including important late-game HQ levels.
A larger training cap is particularly useful when you cannot check the game frequently, because larger batches can keep a training queue active for longer. However, training cap alone should not determine your upgrade priority. Troop tier unlocks, Headquarters requirements, available resources, and event strategy are usually more important.
Last War Barracks Levels and Upgrade Costs 1–30
The table below covers all normal Barracks levels through level 30. Resource figures are reference base costs before applicable reductions. Construction timers are not included because actual build times vary significantly with research, VIP effects, professions, alliance assistance, and other construction bonuses.
| Level | Iron | Food | Coin | Unit Training Cap | Power |
|---|---|---|---|---|---|
| 1 | 20 | 20 | — | 30 | 700 |
| 2 | 30 | 30 | — | 50 | 1,400 |
| 3 | 680 | 680 | — | 100 | 2,100 |
| 4 | 1,700 | 1,700 | — | 150 | 2,800 |
| 5 | 14,000 | 14,000 | — | 200 | 3,500 |
| 6 | 61,000 | 61,000 | — | 250 | 4,200 |
| 7 | 120,000 | 120,000 | — | 300 | 4,900 |
| 8 | 190,000 | 190,000 | — | 350 | 5,600 |
| 9 | 310,000 | 310,000 | 120,000 | 360 | 6,600 |
| 10 | 370,000 | 370,000 | 150,000 | 370 | 7,600 |
| 11 | 930,000 | 930,000 | 370,000 | 380 | 9,200 |
| 12 | 1,600,000 | 1,600,000 | 630,000 | 390 | 11,300 |
| 13 | 1,700,000 | 1,700,000 | 700,000 | 400 | 13,500 |
| 14 | 2,400,000 | 2,400,000 | 980,000 | 410 | 16,100 |
| 15 | 3,400,000 | 3,400,000 | 1,400,000 | 420 | 19,200 |
| 16 | 6,100,000 | 6,100,000 | 2,400,000 | 430 | 23,300 |
| 17 | 7,900,000 | 7,900,000 | 3,200,000 | 440 | 27,900 |
| 18 | 14,000,000 | 14,000,000 | 5,500,000 | 450 | 34,000 |
| 19 | 17,000,000 | 17,000,000 | 6,600,000 | 460 | 40,800 |
| 20 | 30,000,000 | 30,000,000 | 12,000,000 | 470 | 49,800 |
| 21 | 42,000,000 | 42,000,000 | 17,000,000 | 480 | 60,400 |
| 22 | 54,000,000 | 54,000,000 | 22,000,000 | 490 | 72,500 |
| 23 | 68,000,000 | 68,000,000 | 27,000,000 | 500 | 86,000 |
| 24 | 85,000,000 | 85,000,000 | 34,000,000 | 510 | 101,100 |
| 25 | 140,000,000 | 140,000,000 | 58,000,000 | 520 | 120,600 |
| 26 | 200,000,000 | 200,000,000 | 81,000,000 | 530 | 143,800 |
| 27 | 260,000,000 | 260,000,000 | 110,000,000 | 540 | 170,400 |
| 28 | 370,000,000 | 370,000,000 | 150,000,000 | 550 | 201,900 |
| 29 | 520,000,000 | 520,000,000 | 210,000,000 | 560 | 239,200 |
| 30 | 720,000,000 | 720,000,000 | 290,000,000 | 570 | 283,100 |
Coin first appears as an upgrade requirement at Barracks level 9. From the mid game onward, costs rise quickly, so pushing every Barracks to the maximum available level is not always the most efficient use of resources.
Last War Barracks Troop Tier Requirements
Barracks levels matter most at troop-tier breakpoints. Increasing a Barracks by one ordinary level may only add training capacity, while reaching a breakpoint can unlock an entirely new troop tier.
| Troop Tier | Required Barracks Level | Additional Requirement |
|---|---|---|
| T1 | 1 | None |
| T2 | 4 | None |
| T3 | 6 | None |
| T4 | 10 | None |
| T5 | 14 | None |
| T6 | 17 | None |
| T7 | 20 | None |
| T8 | 24 | None |
| T9 | 27 | None |
| T10 | 30 | Unit X / required Special Forces research |
| T11 | 35 | Season 4 Off-Season T11 progression and Armament Institute requirements |
This is why a Barracks at level 27 is much more meaningful than one at level 26: level 27 gives access to T9 troops. Similarly, Barracks 30 is necessary for T10, but the building itself is only one part of the unlock.
Last War Barracks Level 30 Requirements
Players searching specifically for Barracks level 30 should prepare for the following reference requirements:
- Headquarters: Level 30 so the Barracks can reach level 30.
- Iron: 720,000,000
- Food: 720,000,000
- Coin: 290,000,000
- Unit Training Cap: 570
- Building Power: 283,100
However, Barracks 30 does not immediately give you T10 units. T10 is unlocked through Unit X in the Special Forces research tree. That path requires a level 30 Tech Center and the prerequisite Special Forces technologies leading to Unit X.
If T10 is your goal, plan the Barracks and Tech Center together. Reaching Barracks 30 while being far behind on Special Forces research can leave the building ready long before you can actually train T10 troops.
Barracks Levels 31–35 and Age of Oil
After Season 2, the Age of Oil progression introduces technology that raises the Headquarters and normal building cap beyond level 30. Current Age of Oil access requires a level 30 Tech Center and at least 40% completion of Special Forces research, after which the HQ Expansion research path allows buildings to progress toward level 35.
Barracks levels 31–35 require Oil in addition to Iron, Food, and Coin.
| Level | Iron | Food | Coin | Oil | Unit Training Cap | Power |
|---|---|---|---|---|---|---|
| 31 | 790,000,000 | 790,000,000 | 320,000,000 | 360,000 | 575 | 329,100 |
| 32 | 870,000,000 | 870,000,000 | 350,000,000 | 576,000 | 580 | 377,400 |
| 33 | 960,000,000 | 960,000,000 | 380,000,000 | 979,200 | 585 | 428,000 |
| 34 | 1,000,000,000 | 1,000,000,000 | 400,000,000 | 1,762,560 | 590 | 479,700 |
| 35 | 1,100,000,000 | 1,100,000,000 | 420,000,000 | 3,525,120 | 600 | 533,600 |
The training-cap increase from level 30 to 35 is relatively modest: 570 to 600. That makes these upgrades difficult to justify purely for batch size, especially for F2P players with limited Oil. Their value becomes more important when a higher Barracks is needed for Headquarters progression or endgame troop systems.
Why Barracks Level 35 Matters for T11 Troops
Barracks 35 has become considerably more important with the introduction of T11 progression. T11 is associated with the Season 4 Off-Season and the Armament Institute rather than simply being another troop tier unlocked by raising the Barracks one more level.
!Important
Barracks 35 does not automatically unlock T11. T11 progression also requires the Season 4 Off-Season systems, the Armament Institute, completion of its required Armament research, and the relevant T11 unlock conditions. Barracks 35 is the building requirement that allows the new tier to be used once the separate progression is complete.
This changes the late-game value of Barracks 31–35. Before T11 becomes relevant to your server, these levels mainly add small amounts of training capacity and building power. Once you are preparing for T11, reaching at least one level 35 Barracks becomes a major progression target.
How Unit Training Capacity Works
The Unit Training Cap is the maximum number of troops you can place into a single Barracks training or promotion queue before other bonuses are applied.
The base cap rises quickly in the early game:
- Barracks 1: 30 units
- Barracks 5: 200 units
- Barracks 10: 370 units
- Barracks 20: 470 units
- Barracks 30: 570 units
- Barracks 35: 600 units
The usefulness of extra capacity depends on your schedule. Larger batches are convenient if you log in less frequently because they keep the queue occupied longer. More active players can restart queues more often, making the difference between nearby Barracks levels less important.
Survivor bonuses and research can also change the number of units you are able to queue, so the actual training amount displayed on your account may exceed the base figures in the table.
How the Barracks and Drill Ground Work Together
The Barracks controls training and promotion, while the Drill Ground determines how many troops your base can store. Raising training capacity without maintaining enough overall troop capacity can eventually prevent you from using that production efficiently.
Once trained, units occupy your Drill Grounds unless they are outside the base on activities such as marches or gathering. If you frequently reach your troop-storage limit, another Barracks upgrade may provide less value than increasing Drill Ground capacity.
See the Last War Drill Ground guide for its upgrade strategy and capacity mechanics.
Should You Keep Every Barracks at the Same Level?
Not necessarily. Keeping one Barracks at your highest available troop tier while leaving other Barracks at lower tier breakpoints can be useful for training-event strategies.
Lower-tier troops can be promoted directly to the highest tier supported by the Barracks performing the promotion. Because some events reward unit progression each time troops are trained or promoted, players often keep Barracks at different milestone levels so troops can move through several promotion steps.
For example, a player working with T9 troops might maintain Barracks around these breakpoints:
- Level 14 for T5
- Level 17 for T6
- Level 20 for T7
- Level 24 for T8
- Level 27 for the final promotion to T9
The exact arrangement depends on how many Barracks you have, your current maximum tier, and the event scoring rules currently active on your server.
✓Recommendation
For most F2P and light-spending accounts, push one Barracks to the highest troop tier you need first. Consider leaving other Barracks at useful tier breakpoints for promotion events instead of automatically maxing all of them. Check the current event scoring before committing to a waterfall-style promotion strategy.
Training New Troops vs. Promoting Existing Troops
The Barracks can both create new troops and promote lower-tier units. Which option is better depends on what your account needs.
Train New Troops When You Need More Army Size
If your Drill Grounds have substantial free capacity, training new troops increases the total number available for marches, gathering, defense, rallies, and casualty replacement.
Promote When You Have Large Numbers of Old Troops
As your maximum troop tier rises, older low-tier units become less useful in your strongest marches. Promoting them improves their tier without increasing your total troop count.
Promotion is also useful during training-focused events when the current scoring system awards points for troop upgrades. Staggered Barracks can create multiple promotion opportunities instead of immediately jumping every unit to your maximum tier.
Keep Enough Troops for Your Actual Activity
Do not consume every resource simply to fill the Drill Grounds. Large armies also create healing and replacement costs when you participate in high-casualty PvP. Training should match the amount of combat, gathering, and event activity your account can realistically support.
How to Get More Barracks
Additional Barracks become available through progression and research. The Development research tree in the Tech Center includes Extra Barracks, which allows another Barracks to be constructed.
Having multiple Barracks improves flexibility because each building has its own training queue. It also makes staggered troop-promotion strategies possible: one Barracks can remain at a lower tier breakpoint while another advances toward T9, T10, or eventually level 35 for T11.
Best Barracks Upgrade Priorities
Early Game: Chase Useful Troop Breakpoints
Early Barracks upgrades are inexpensive, and troop-tier jumps come quickly. Prioritize levels 4, 6, 10, and 14 as your Headquarters progression permits rather than stopping immediately before an important tier unlock.
Mid Game: One High Barracks First
From T6 onward, costs become much larger. For F2P players, one Barracks at level 17, 20, 24, or 27 provides access to the next tier while allowing other construction queues and resources to support Headquarters, research, and combat buildings.
HQ30: Coordinate Barracks and Special Forces Research
If T10 is your objective, Barracks 30 and Tech Center progression need to arrive at roughly the same stage. Unit X sits deep in Special Forces research, so start working toward it before the Barracks upgrade itself is complete.
Age of Oil: Protect Your Oil
Oil is a major late-game bottleneck. Barracks 31–35 consumes increasing amounts while adding only small increments of training capacity. Unless you need the building for HQ progression or are preparing for T11, other Oil-dependent upgrades may offer more immediate value.
Resource Management for Barracks Upgrades
Barracks upgrades consume equal amounts of Iron and Food through the normal progression, with Coin added from level 9 onward. Troop training itself also needs resources, so upgrading the building and filling its queue at the same time can drain reserves quickly.
Keep your Iron Mine, Farmland, and Gold Mine developed enough to contribute to your economy, but remember that passive base production is only one part of late-game resource income.
Before starting an expensive Barracks upgrade, check the resources required for your next Headquarters and Tech Center milestones. Spending hundreds of millions on an optional Barracks level immediately before a required HQ prerequisite can slow overall progression.
Players who prefer beginning with already-developed military infrastructure rather than progressing every Barracks and troop tier themselves can also browse Last War accounts for sale as an optional progression path. Players developing their own account should focus primarily on troop-tier milestones and efficient use of construction resources.
Tips for Faster and More Efficient Troop Training
- Keep useful queues active: Idle Barracks produce no troops, so start the next batch when practical.
- Match queue length to your schedule: Use longer batches before logging off and shorter batches when you expect to return soon.
- Prioritize tier breakpoints: A level that unlocks T7, T8, or T9 is usually more strategically valuable than an ordinary capacity-only level.
- Use research efficiently: Training Speed, Barracks Expansion, and the Special Forces path become increasingly important as you approach T10.
- Request alliance help on construction: Alliance assistance can reduce building timers. See the Alliance Support Hub guide.
- Time troop promotions with events: Training and promotion can be saved for event scoring windows when that does not hurt your combat readiness. Check the Last War Event Hub when planning a large training push.
- Do not ignore troop quality: Higher-tier troops improve army performance, but hero strength, formations, and research still matter. See the Last War troop stats guide for the combat attributes behind your units.
Common Barracks Mistakes
- Upgrading every Barracks equally: This can remove useful lower-tier promotion steps and consume resources that could push one Barracks to the next major tier.
- Assuming Barracks 30 automatically unlocks T10: Unit X research is also required.
- Assuming Barracks 35 automatically unlocks T11: T11 has a separate Season 4 and Armament Institute progression path.
- Ignoring Drill Ground capacity: More training capacity does little if your total troop storage is already full.
- Spending Oil only for a larger queue: The base cap rises from 570 at Barracks 30 to only 600 at Barracks 35, so consider the opportunity cost.
- Letting training events dictate every decision: Event optimization is useful, but combat readiness and long-term progression should come first when you urgently need stronger troops.
FAQs
What are the Last War Barracks level 30 requirements?
Barracks 30 requires your base to support a level 30 building and has a reference cost of 720 million Iron, 720 million Food, and 290 million Coin. Its base Unit Training Cap is 570. T10 troops still require Unit X research in addition to Barracks 30.
What Barracks level do I need for T10 troops?
You need Barracks level 30, but the building alone is not enough. You must also reach the required Special Forces research and complete Unit X before T10 training becomes available.
What Barracks levels unlock each troop tier?
The main milestones are Barracks 4 for T2, 6 for T3, 10 for T4, 14 for T5, 17 for T6, 20 for T7, 24 for T8, 27 for T9, and 30 plus Unit X research for T10.
Do I need Barracks level 35 for T11?
Yes. Barracks 35 is a required building milestone for T11 progression. T11 also depends on the Season 4 Off-Season systems, the Armament Institute, and completion of the required Armament progression, so simply upgrading the Barracks to 35 does not unlock T11 by itself.
Should all my Barracks be the same level?
Not necessarily. Keeping one Barracks at your maximum useful tier while leaving others at lower troop-tier breakpoints can make promotions more flexible and can help during events that reward unit progression. If immediate combat strength is the priority, raising more Barracks to your highest tier may be preferable.
Should I upgrade the Barracks or Drill Ground first?
Upgrade the Barracks when you need a higher troop tier, a larger training batch, or an HQ prerequisite. Upgrade the Drill Ground when total troop-storage capacity is preventing you from training additional units.
Conclusion
The most important Last War Barracks levels are the troop-tier breakpoints rather than every individual upgrade. Push at least one Barracks toward the next useful tier, prepare Barracks 30 and Special Forces research together for T10, and treat levels 31–35 as strategic Oil investments rather than automatic upgrades. For late-game servers, Barracks 35 is also an important prerequisite on the path to T11.
For more troop, building, event, and progression strategies, browse our Last War Survival guides.
