Last Z Research Costs Atlas — Branch Comparison, Badge Totals, and Unlock Paths

Research Costs • Updated October 24, 2026 • Atlas / directory • Last Z Guides
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Quick Answer

Compare research badge totals below, with exact costs and unlock requirements for 14 branches. Totals cover the full branch, excluding earlier prerequisite research. A useful stopping point can cost less: Hero Training costs 40,040 badges in full, but reaching Cockpit costs 21,930.

Leaders’ Will and Army Expansion Costs

Leaders’ Will

Leaders’ Will costs 6,089,170 badges for the full branch.

Army Expansion

Army Expansion research costs no badges, but it still requires resources and research time. It is separate from Army Building.

14 Detailed Research Trees

Open any branch below to see its exact node costs, grouped tree view, and the main checkpoint that matters before you commit badges to it.

Alliance Recognition

360,350

Requires: First Alliance Duel cycle

Event-value branch that matters for Event Expert, Event King, and long-term alliance progression.

How to Use This Atlas

Want a shareable plan instead of a static table? Open the Research Planner to mark completed and planned nodes, compare remaining badges, and copy a URL for your current plan.

Research Costs Atlas FAQ

Which research branch costs the most badges in Last Z?

Leaders’ Will has the highest full-branch badge total among the branches in this atlas: 6,089,170. Tactical Master follows at 6,000,590.

What unlocks Field Research?

Field Research unlocks after you complete 100% Siege to Seize.

About These Research Totals