Last Z Wiki

PRIORITY GUIDE

Building Tier List

Which buildings to upgrade first in Last Z: Survival Shooter?

⚠️ This guide reflects my personal experience and is based on the total power each building provides. Every building serves an important role in the game — this ranking helps you know which ones to focus on first. To see requirements, levels and details for each building visit the Buildings page.

S Essential — Always upgrade first
A Very important — High priority
B Important — Upgrade when you can
C Secondary — No rush
S

Tier S — Essential

These buildings are required to level up and should always be at the highest possible level.

1 🏛️
Main HQ Foundation of all your progress. Without upgrading it you cannot advance.
9,637,256
2 🔬
Laboratory Mandatory requirement to level up across all ranks.
9,043,887
A

Tier A — Very Important

They provide massive power and critical functions in combat and alliance.

3 ⚔️
Formations (1–3) Your attack power depends directly on these.
6,836,325 ea.
4 🎖️
Military Center Improves your combat capabilities and unlocks key functions.
6,675,650
5 🤝
Alliance Center Essential for participating in alliance events and receiving help.
6,675,650
6 🏥
Hospitals (1–2) Heal your troops after combat. Critical in PvP.
3,611,739 ea.
7 🧱
Wall Defense of your base. Important to withstand attacks.
5,897,249
B

Tier B — Important

They provide good power and faction buffs. Upgrade them according to your main formation.

💡 Note on faction buildings: The priority order among Steel Factory, Toxic Fog Garden and Dawn Tower depends on your main formation. Most players use Blood Rose as their 1st formation, so the Toxic Fog Garden should be your priority here.
8 ⚙️
Steel Factory Boosts the Order Guard formation.
5,710,360
9 🌿
Toxic Fog Garden Boosts the Blood Rose formation. Priority if it's your 1st formation.
5,710,360
10 🗼
Dawn Tower Boosts the Wings of Dawn formation.
5,710,278
11 🏟️
Meeting Plaza Necessary to coordinate troops and events.
5,516,997
12 🏘️
Village Increases your population and troop capacity.
4,777,731
13 🏭
Production Center Improves production of essential resources.
4,580,233
14 🎯
Camps (Bikers / Shooting / Raiders) Train specific troop types.
4,423,566 ea.
C

Tier C — Secondary

Upgrade them when you have spare resources. Not urgent.

15 📡
Radar Expands your field of vision on the map.
4,170,944
16 🔩
Foundry Platforms (1–4) Production of construction materials.
3,901,246 ea.
17 🏕️
Wanderers Camp Refugee recruitment.
3,794,981
18 📦
Warehouses (1–3) Protect resources from looting. Useful but not urgent.
5,897,825 ea.
19 🏗️
Steel Mills (1–2) Steel production for constructions.
3,254,899 ea.
20 🪵
Lumber Mills (1–4) Wood production for constructions.
3,254,611 ea.

Want to know more about each building?

Visit our complete buildings guide with requirements, levels, functions and detailed strategies.

View complete Buildings guide →