Research upgradeExtra Gold Storage III
+ 50,000 gold storage capacity
Research data
- Research branch
- Gold mine
- Unlock requirement
- Gold mine level 4
- Cost rank
- 18
- Wood cost
- 30,000
- Stone cost
- 30,000
- Food cost
- 30,000
- Gold cost
- 12,000
- Iron cost
- 18,000
- Effect
- + 50,000 gold storage capacity
Related game data
Research branch 1
Research cost 5
