How to unlock the second Laboratory in Last Z?

You unlock Lab No. 2 by reaching Headquarters level 18 and purchasing a Research License from the License Store.

What is the max level power of the Laboratory?

At Level 30, the Laboratory contributes 4,818,919 to your overall base power.

When do you unlock the first Laboratory in Last Z?

The first Laboratory is unlocked once your Headquarters reaches Level 7.

Laboratory Guide: The Brain of Your Survival Strategy

In Last Z: Survival Shooter, raw firepower will only get you so far. To truly dominate the wasteland, you need scientific advancement. The Laboratory is the action building responsible for researching new Technologies, which enhance everything from your resource production to your troops' lethality in the field.

Strategic Insight: The Laboratory is often a mandatory requirement for upgrading your Headquarters. Keeping your research facility at peak level is the only way to keep your growth consistent and avoid development bottlenecks.

Unlocking Lab No. 2: Double Your Productivity

As you progress into the mid-game, a single research queue won't be enough. One of the most significant milestones in Last Z is unlocking the second Laboratory.

How to unlock Lab No. 2:

Reach Headquarters Level 18.
Obtain a Research License from the License Store.
Build the second lab to allow two simultaneous technology researches.

Laboratory Levels & Power Scaling

Upgrading your Laboratory doesn't just unlock higher-tier tech; it provides a massive boost to your overall Base Power. Below are the key milestones in your Laboratory's development.

Lab Level	Unlock Requirement	Power Boost
Level 1	HQ Lvl 7	6,000
Level 10	Standard Resources	72,635
Level 15	Advanced Requirements	269,115
Level 20	Mid-Game Grind	792,850
Level 25	High-Tier Tech	2,016,844
Level 30	Max Evolution	4,818,919

Why Focus on Research?

Every second spent without an active research project in your Laboratory is a missed opportunity. High-level labs allow you to access the Advanced Technology Tree, which provides the critical buffs needed for cross-state wars and top-tier zombie challenges. At Level 30, your Laboratory becomes a powerhouse, contributing nearly 5 million power to your base.

Laboratory & Research Q&A

Q: Can I research two different technologies at once?
A: Only after you reach HQ Level 18 and build Lab No. 2 using a Research License. Before that, you are limited to one research slot.

Q: Does upgrading the Laboratory speed up research time?
A: The Laboratory level itself increases your base power and unlocks new tech. To speed up the time, you must research "Research Speed" within the tech tree itself.

Q: Where do I get the Research License for the second lab?
A: Research Licenses are exclusively available in the License Store. Make sure to save your currency for this essential purchase once you hit HQ 18.

Last Z Laboratory Guide: Tech Research & Lab No. 2 Unlocking | Last Z: Survival Shooter