The Drill Ground determines how many units your base can hold in Last War Survival. Upgrading it increases your total troop capacity, while unlocking additional Drill Grounds allows your army to grow further. This guide covers Drill Ground unlock requirements, upgrade costs, troop capacity, Age of Oil levels, and practical upgrade priorities.
Understanding the Drill Ground
The Drill Ground is a troop capacity building. It does not train units directly. Unit training takes place in the Barracks, while the Drill Ground determines how many trained troops your base can accommodate.
Upgrading the building increases its Unit Count limit. When your available troop capacity becomes full, you may be unable to train additional units until capacity is increased or space becomes available.
You begin with one Drill Ground and can unlock additional buildings as your account progresses. According to the supplied progression information:
- First Drill Ground: Available during early base development.
- Second Drill Ground: Unlocks at Headquarters level 16.
- Third Drill Ground: Unlocks at Headquarters level 21.
- Fourth Drill Ground: Unlocks through the listed “Siege to Siege” research.
Because the fourth unlock is tied to research, check the current technology tree for its exact name and requirements before planning your progression.
Drill Ground Upgrade Guide
Upgrading the Drill Ground requires Iron and Food, with Coin becoming necessary at higher levels. Each upgrade increases building power and raises the number of units the Drill Ground can hold.
The table below shows the supplied Drill Ground upgrade milestones:
| Level | Iron | Food | Coin | Upgrade Time (Approx.) | Power | Unit Count |
|---|---|---|---|---|---|---|
| 1 | 20 | 60 | – | 4s | 700 | 2,000 |
| 5 | 6,800 | 20,000 | – | 11m 42s | 3,500 | 3,000 |
| 10 | 120,000 | 370,000 | 100,000 | 2h 42m 16s | 7,300 | 4,000 |
| 15 | 1,100,000 | 3,400,000 | 910,000 | 7h 42m 54s | 16,700 | 5,000 |
| 20 | 10,000,000 | 30,000,000 | 8,000,000 | 2d 11h 5m 26s | 41,700 | 6,000 |
| 25 | 48,000,000 | 140,000,000 | 39,000,000 | 6d 4h 57m 48s | 99,700 | 7,000 |
| 30 | 240,000,000 | 720,000,000 | 190,000,000 | 28 days | 232,000 | 8,000 |
| 31 | 260,000,000 | 790,000,000 | 210,000,000 | N/A | 269,500 | 8,100 |
| 35 | 350,000,000 | 1,100,000,000 | 280,000,000 | N/A | 436,400 | 8,500 |
Research, alliance bonuses, professions, VIP benefits, and other effects may reduce the actual costs or construction time shown on your account.
How Drill Ground Capacity Works
The Unit Count shown by each Drill Ground contributes to the troop capacity available on your base. Increasing this limit gives you more space for trained units and supports the development of larger armies.
Troop capacity becomes more important as your Barracks levels and training speed improve. If your Barracks can produce troops faster than your Drill Grounds can store them, capacity may become the main restriction on army growth.
For this reason, the Barracks and Drill Ground should be upgraded together:
- Barracks: Controls unit training and the size of each training queue.
- Drill Ground: Controls how many trained units your base can hold.
A high-level Barracks provides limited value if your Drill Grounds are already full. Similarly, a large troop capacity will remain unused if your Barracks and training bonuses are underdeveloped.
Unlocking Additional Drill Grounds
Additional Drill Grounds can provide more total troop capacity than upgrading a single building alone. The second and third buildings are tied to Headquarters progression, making the Headquarters an important part of troop development.
The fourth Drill Ground requires research. Review the relevant technology path in the Tech Center and complete any prerequisite technologies before expecting the additional building slot to become available.
Once another Drill Ground is unlocked, it must still be constructed and upgraded. Plan the combined resource requirements before opening several expensive building projects at the same time.
Age of Oil and Levels Above 30
After the Season 2 off-season, the Age of Oil progression allows buildings to advance beyond level 30. You must complete the relevant HQ Expansion research before advanced Drill Ground levels become available.
The supplied data shows that Unit Count increases from 8,000 at level 30 to 8,100 at level 31 and 8,500 at level 35. However, these upgrades require substantial amounts of Iron, Food, and Coin, in addition to any Oil requirement shown in the game.
Before upgrading beyond level 30, compare the additional capacity with other late-game priorities such as the Headquarters, Tech Center, Hospital, Barracks, military centers, and research.
Tips for Maximizing Drill Ground Efficiency
- Monitor remaining troop capacity: Check available space before starting a large training batch.
- Upgrade the Barracks and Drill Ground together: Keep troop production and storage capacity balanced so neither building becomes a bottleneck.
- Unlock additional buildings: Progress the Headquarters and required research to gain access to the second, third, and fourth Drill Grounds.
- Develop resource production: Keep your Iron Mine, Farmland, and Gold Mine developed enough to support construction and troop training.
- Use speedups on longer levels: Save construction speedups for advanced upgrades that would otherwise occupy your building queue for several days.
- Request alliance assistance: Ask alliance members for help when beginning long upgrades. Improving the Alliance Support Hub can increase the value of this support.
- Use research bonuses: Prioritize technologies that improve troop capacity, training efficiency, construction, or military progression.
- Plan around events: Check the Last War Event Hub before completing major upgrades or large training batches.
How Many Drill Grounds Do You Need?
Active players who regularly train troops will generally benefit from unlocking every available Drill Ground. More buildings provide additional capacity and reduce the risk of troop production being blocked.
However, constructing all four buildings without upgrading them may provide less capacity than maintaining fewer well-developed Drill Grounds. Your best approach depends on the cost of the next building level, the capacity provided, and your current resource supply.
Compare the increase from an upgrade with the capacity available from constructing or improving another Drill Ground. This helps identify the most efficient use of your resources.
Choosing Troops for Your Available Capacity
Drill Ground capacity should support the troop types used by your main hero formation. Avoid filling all available space with units that do not match your primary squad or current military priorities.
Stronger troop tiers may provide better performance, but building a large army also increases training, healing, and replacement costs. Balance troop quantity with the resources and recovery buildings available on your account.
Review the Last War troop stats guide to understand how Attack, Defense, HP, and other attributes influence unit performance.
Drill Ground Capacity and Recovery Buildings
A larger troop capacity can improve your army size, but it also increases the number of units potentially exposed during major battles. Your Hospital and Emergency Center should be developed enough to support the army stored in your Drill Grounds.
Expanding troop capacity without improving recovery infrastructure may lead to heavier permanent losses when battles produce more wounded units than your buildings can hold.
Keep troop storage, training, and recovery buildings balanced as your army grows.
How the Drill Ground Supports Account Progression
The Drill Ground supports military progression by providing the capacity required for a larger army. Its value increases when combined with upgraded Barracks, developed troops, stronger heroes, military research, and sufficient recovery capacity.
Unlocking four Drill Grounds and upgrading them to advanced levels can require considerable time and resources. Players who prefer to begin with established troop capacity can explore a Last War Survival account for sale through Heaven Guardian. Available accounts may include multiple upgraded Drill Grounds, developed Barracks, trained troops, stronger heroes, and progressed research, with lifetime warranty coverage and premium support for a safer purchase experience.
FAQs
Q: What does the Drill Ground do?
A: The Drill Ground increases the number of units your base can hold.
Q: Does the Drill Ground train troops?
A: No. Troops are trained in the Barracks. The Drill Ground provides capacity for the units you train.
Q: How many Drill Grounds can I have?
A: According to the supplied progression information, you can unlock up to four Drill Grounds.
Q: When does the second Drill Ground unlock?
A: The second Drill Ground unlocks when your Headquarters reaches level 16.
Q: When does the third Drill Ground unlock?
A: The third Drill Ground unlocks at Headquarters level 21.
Q: How do I unlock the fourth Drill Ground?
A: It is unlocked through the relevant research listed in the technology tree. Check the current in-game name and prerequisites before planning it.
Q: What resources are required for Drill Ground upgrades?
A: Upgrades require Iron and Food, with Coin becoming necessary at higher levels. Advanced levels may also require Oil.
Q: What happens when my troop capacity is full?
A: You may be unable to train more units until you increase capacity or available space becomes available.
Q: Should I upgrade the Barracks or Drill Ground first?
A: Upgrade the Barracks when training capacity is limiting production. Upgrade the Drill Ground when total troop capacity is preventing you from training more units.
Q: Can the Drill Ground be upgraded beyond level 30?
A: Yes. Advanced levels become available after completing the required Age of Oil and HQ Expansion progression.
Conclusion
The Drill Ground is the main troop capacity building in Last War Survival. Upgrading it and unlocking additional Drill Grounds provides the space needed to maintain a larger army.
Keep Drill Ground capacity balanced with your Barracks, resource production, Hospital, Emergency Center, and military research. Expanding your army efficiently requires enough capacity to store troops, enough resources to train them, and enough recovery space to protect them after battle.
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