Economy

Stone Output IV

Enhances Quarry Speed

Max level

3

Effect

Stone Output

Plan in calculator

Research levels

Cost, base research time, power, prerequisites, and total effect at each level.

Level	Bread	Wood	Stone	Iron	Gold	Research time	Power	Requirements	Effect
1	1,200,000	1,200,000	240,000	62,000	16,000	11h 6m 40s	2,080	Academy 23 Iron Mining III 1	8%
2	1,700,000	1,700,000	340,000	86,000	22,000	16h 40m	4,160	Academy 24	16%
3	3,700,000	3,700,000	740,000	180,000	48,000	1d 20h 26m 40s	6,760	Academy 25	26%

Related research

Economy

Iron Mining III

Accelerates Iron Gathering

Iron Mining Speed

Max level 3View levels →

Economy

Iron Output IV

Enhances Iron Output at Ironworks

Iron Output

Max level 3View levels →

Values may change as the game is updated. Check current requirements before committing resources.