Ancient Era
Classical Era
Medieval Era
Renaissance Era
Industrial Era
Atomic Era
Information Era
Future Era
Refining
Quotes
所谓工程，就是一门将大自然中绝佳的能量源用于惠世济民的艺术。
——托马斯·特雷戈德
ICON_TECH_REFINING
Traits
Era
Modern Era
Science Cost
4800 [ICON_SCIENCE] Science
Eureka
Build 1 Coal Power Plant.
Unlocks
ICON_UNIT_BATTLESHIP
Battleship
ICON_BUILDING_FOSSIL_FUEL_POWER_PLANT
Oil Power Plant
ICON_PROJECT_CONVERT_REACTOR_TO_OIL
Convert to Oil Power
ICON_PROJECT_GRANT_RESOURCE_COAL
Charcoal Production
Tech Tree
Prerequires
ICON_TECH_CHEMISTRY
Chemistry
ICON_TECH_ELECTRICITY
Electricity
Leads To
ICON_TECH_MEDICAL_SCIENCE_HD
Medical Science
ICON_TECH_COMPUTERS
Computers
Language