Research upgradeImproved Iron Tools
+ 100% iron production (Equipment Multiplier)
Research data
- Research branch
- Iron mine
- Unlock requirement
- Iron mine level 3 · Blacksmith level 3
- Cost rank
- 15
- Wood cost
- 8,750
- Food cost
- 8,750
- Gold cost
- 3,500
- Iron cost
- 14,000
- Effect
- + 100% iron production (Equipment Multiplier)
Related game data
Research branch 1
Research cost 4
