Last Z HQ Upgrade Requirements
Tables: 1
Updated 10/12/2026
| HQ | Required building | Steel | Planning note |
|---|---|---|---|
| HQ31 | Rider Camp | 2.2M | First Steel requirement. |
| HQ32 | City Walls | 3.1M | Steel rises by 0.9M from HQ31. |
| HQ33 | Alliance Center | 4.1M | Keep Alliance Center on the critical upgrade path. |
| HQ34 | Assaulter Camp | 5.3M | First Steel cost above 5M. |
| HQ35 | Shooter Camp | 6.4M | Largest Steel step; HQ31–35 uses 21.1M Steel in total. |