Upgrade Properties
| Research Node | Strong Back |
|---|---|
| Skill Branch | Fitness |
| Progression Step | Start |
| Purchase Price | Tech Tree unlock |
| Purchasable Levels | 1 level |
| Prerequisite Requirement | None (Base Node) |
| Game Data Source | frame:sJPYpYVtxI8/frame_030.jpg |
Upgrade Effect & Function
Reduces fatigue and increases maximum carried item burden.
Investing in Strong Back improves efficiency within the Fitness tree and unlocks new automation capabilities across the barn.
Strategic Investment Overview
Upgrades in the Fitness branch allow players to shift from manual haystack digging into automated conveyor sorting and power generation.