Last Z Army Building Costs — Total Badge Cost and Peace Shield Follow-Up

Research Costs • Updated March 15, 2026 • Branch breakdown • Last Z Guides

Quick Answer

Best Army Building rule for most players: do not treat this as an early branch. The full path costs 750,250 badges, requires 100% Peace Shield, and only starts to make sense once your earlier research value is already secured.

  1. Full branch cost · 750,250 badges
  2. Unlock requirement · 100% Peace Shield
  3. Best use · Late-game combat scaling, not early efficiency

Key note: Army Building is where badge planning stops being about cheap efficiency and starts becoming a real endgame account decision.

Army Building Summary

Army Building is a large follow-up branch that only opens once Peace Shield is fully complete. It adds a lot of combat weight, but it is far enough into the tree that many accounts should think carefully before moving into it.

Army Building Tree Overview

This overview groups the full Army Building branch into node totals, so you can see where the large stat walls begin after the cheaper opening nodes.

Combat Policy I
Combat Policy I
Lv. 1-10 1-10
4,180 badges
Interceptions I
Interceptions I
Lv. 1-10 1-10
4,180 badges
Field Training I
Field Training I
Lv. 1-10 1-10
4,180 badges
Camo Coating I
Camo I
Lv. 1-10 1-10
4,180 badges
Demolition Crew
Demolition Crew
Lv. 1 1
420 badges
Alloy Plate
Alloy Plate
Lv. 1-3 1-3
4,160 badges
Enhanced Armour
Enhanced Armour
Lv. 1-3 1-3
4,160 badges
Aerocraft Material
Aircraft Mat.
Lv. 1-3 1-3
4,160 badges
Mobility Enhancement
Mobility Enh.
Lv. 1-10 1-10
24,990 badges
Melee Combat
Melee Combat
Lv. 1-10 1-10
24,990 badges
Weapon Upgrading
Weapon Upg.
Lv. 1-10 1-10
24,990 badges
Stronger Armor
Stronger Armor
Lv. 1-10 1-10
24,990 badges
Shield Upgrade
Shield Upgrade
Lv. 1-10 1-10
24,990 badges
Tactical Cover
Tactical Cover
Lv. 1-10 1-10
24,990 badges
Joint Operation II
Joint Operation II
Lv. 1-15 1-15
49,990 badges
Mobile Defense II
Mobile Defense II
Lv. 1-15 1-15
49,990 badges
Combat Policy II
Combat Policy II
Lv. 1-15 1-15
49,990 badges
Interceptions II
Interceptions II
Lv. 1-15 1-15
49,990 badges
Field Training II
Field Training II
Lv. 1-15 1-15
49,990 badges
Camo Coating II
Camo II
Lv. 1-15 1-15
49,990 badges
Fire Up
Fire Up
Lv. 1-20 1-20
104,130 badges
Armor Upgrade
Armor Upg.
Lv. 1-20 1-20
104,130 badges
Recharge Shield
Recharge Shield
Lv. 1-15 1-15
62,490 badges

Full Army Building Node Cost Table

These totals show how many badges each Army Building node consumes across its full level range. Use this view when you want the exact cost of the late Peace Shield follow-up.

Node Levels Total Badges
Combat Policy I Lv. 1-10 4,180
Interceptions I Lv. 1-10 4,180
Field Training I Lv. 1-10 4,180
Camo Coating I Lv. 1-10 4,180
Demolition Crew Lv. 1 420
Alloy Plate Lv. 1-3 4,160
Enhanced Armour Lv. 1-3 4,160
Aerocraft Material Lv. 1-3 4,160
Mobility Enhancement Lv. 1-10 24,990
Melee Combat Lv. 1-10 24,990
Weapon Upgrading Lv. 1-10 24,990
Stronger Armor Lv. 1-10 24,990
Shield Upgrade Lv. 1-10 24,990
Tactical Cover Lv. 1-10 24,990
Joint Operation II Lv. 1-15 49,990
Mobile Defense II Lv. 1-15 49,990
Combat Policy II Lv. 1-15 49,990
Interceptions II Lv. 1-15 49,990
Field Training II Lv. 1-15 49,990
Camo Coating II Lv. 1-15 49,990
Fire Up Lv. 1-20 104,130
Armor Upgrade Lv. 1-20 104,130
Recharge Shield Lv. 1-15 62,490

Unlock Requirements and Why This Branch Matters

Army Building only appears once Peace Shield is fully complete, which already makes it a late-game branch by definition.

That is why Army Building is usually planned as part of a late combat roadmap rather than a broad early recommendation.

Key Army Building Checkpoints

Opening structure cleared — 29,620 badges

The first eight nodes are still relatively controlled and mostly serve as setup before the real branch cost begins.

Mid combat block finished — 179,560 badges

After the two three-node combat clusters, Army Building has already become a major badge commitment.

Second major wall — 479,500 badges

The repeated 15-level branches are where Army Building starts to feel like a true late-game cost wall.

Full branch — 750,250 badges

The late Fire Up, Armor Upgrade, and final Recharge Shield turn Army Building into one of the site's larger research commitments.

How to Use Army Building in Your Research Plan

Army Building is less about early efficiency and more about whether your account is already ready for a serious late-game badge branch. It only makes sense after Peace Shield is fully done and your earlier value branches are already locked in.

If you are still comparing whether to push Army Building or something even deeper, use the Unit Special Training Costs page to compare the next major badge wall.

Army Building FAQ

How many badges does Army Building cost in Last Z?

Army Building costs 750,250 badges in total. It is a large late-game branch and should be planned as a major badge commitment.

What unlocks Army Building?

Army Building requires 100% Peace Shield before it becomes available.

Is Army Building an early priority?

No. Army Building is a late Peace Shield follow-up branch and usually only makes sense once earlier high-efficiency branches are already done.

What is the final node in Army Building?

The final node is Recharge Shield, which costs 62,490 badges on top of a branch that is already very expensive before it.

Is Army Building cheaper than Unit Special Training?

Yes. Army Building is still expensive, but it is far cheaper than Unit Special Training and sits earlier in the late-game research ladder.

Before Pushing Army Building