Research upgradeSturdy Tools
+ 50% iron production (Equipment Multiplier)
Research data
- Research branch
- Iron mine
- Unlock requirement
- Iron mine level 1 · Blacksmith level 1
- Cost rank
- 8
- Wood cost
- 3,000
- Stone cost
- 1,000
- Food cost
- 2,000
- Iron cost
- 1,000
- Effect
- + 50% iron production (Equipment Multiplier)
Related game data
Research branch 1
Research cost 4
