Research upgradeSkilled Labour IV
+10% Iron Production (Skilled Labour Multiplier)
Research data
- Research branch
- Iron mine
- Unlock requirement
- Iron mine level 4
- Cost rank
- 17
- Food cost
- 16,000
- Gold cost
- 24,000
- Iron cost
- 40,000
- Effect
- +10% Iron Production (Skilled Labour Multiplier)
Related game data
Research branch 1
Research cost 3
