Enabled in build 0.80
+ 5% to all production (Global Efficiency Multiplier)
Research data
- Research branch
- Market
- Unlock requirement
- Market level 1 · Gold mine level 2
- Cost rank
- 12
- Wood cost
- 2,500
- Stone cost
- 2,500
- Food cost
- 3,000
- Iron cost
- 2,000
- Effect
- + 5% to all production (Global Efficiency Multiplier)