Last Z Steel Age — Badge Costs and Research Tree
Quick Answer
Steel Age costs 1,079,410 badges across 24 nodes and 145 levels. Steel Plant, production bonuses, healing, construction and research speed, and reservist capacity.
These are full-node badge totals. For individual levels and remaining costs, use the Research Planner.
- Full branch: 1,079,410 badges
- Branch size: 24 nodes / 145 levels
Research Tree
Connections show parent technologies; each node displays the badge cost of all its levels.
Node Badge Costs
Each row covers the full level range shown for that node.
| Node | Levels | Total Badges |
|---|---|---|
| Steel Plant | Lv. 1 | 2,580 |
| Farming Technology | Lv. 1-5 | 5,160 |
| Woodcutter | Lv. 1-5 | 5,160 |
| House Renovation | Lv. 1-5 | 20,600 |
| Smelting | Lv. 1-5 | 20,600 |
| Wind Drive I | Lv. 1-5 | 30,920 |
| Production Boost | Lv. 1 | 5,150 |
| Emergency Center | Lv. 1 | 5,150 |
| Rapid Casualty Care | Lv. 1-10 | 25,770 |
| Critical Care Bed | Lv. 1-10 | 25,770 |
| Skillful Craftsman I | Lv. 1-10 | 51,510 |
| Parallel Work I | Lv. 1-10 | 51,510 |
| Rapid Casualty Care | Lv. 1-10 | 77,290 |
| Critical Care Bed | Lv. 1-10 | 77,290 |
| Production Boost | Lv. 1 | 20,610 |
| Farming Technology | Lv. 1-5 | 77,280 |
| Woodcutter | Lv. 1-5 | 77,280 |
| House Renovation | Lv. 1-5 | 77,280 |
| Smelting | Lv. 1-5 | 77,280 |
| Wind Drive I | Lv. 1-5 | 77,280 |
| Reservist Camp | Lv. 1 | 36,070 |
| Rapid Casualty Care | Lv. 1-10 | 77,290 |
| Critical Care Bed | Lv. 1-10 | 77,290 |
| Combat Readiness | Lv. 1-10 | 77,290 |
Unlock Requirements
The branch entry requirements are listed below. Later nodes can require higher Laboratory levels.
- Level 30 Laboratory No 2
Largest Badge Commitments
Rapid Casualty Care (Lv. 1-10) — 77,290 badges
Full cost of this node alone, excluding its parent technologies.
Critical Care Bed (Lv. 1-10) — 77,290 badges
Full cost of this node alone, excluding its parent technologies.
Plan Your Next Levels
Mark completed and target levels in the Research Planner. Auto-fill budgets parent nodes to their maximum level; it does not add earlier branches or Laboratory upgrades.
Compare other branch totals in the Research Costs Atlas.
Use the Research Guide to choose between the UST/T10 route and late combat research.
Steel Age FAQ
Does the total include earlier branches?
No. The total covers this branch only. Earlier research, building upgrades, other resources and speedups are excluded.