Primary industries, such as mines, provide cargo without requiring anything. This OpenTTD definition is not quite the same as the traditional one in that Banks provide Valuables without requiring any input, but money is not a natural resource and so traditionally these are Tertiary, or service, industries.

Pages

• Bank
• Battery Farm
• Bubble Generator
• Candyfloss Forest
• Coal Mine
• Cola Wells
• Copper Ore Mine
• Diamond Mine
• Farm
• Forest
• Fruit Plantation
• Gold Mine
• Iron Ore Mine
• Lumber Mill
• Oil Rig
• Oil Wells
• Piattaforma petrolifera (it)
• Plastic Fountains
• Pozzo petrolifero (it)
• Rubber Plantation
• Sugar Mine
• Toffee Quarry
• Water Supply
• 煤矿 (zh)