Farm your land You need to feed your people by growing simple crops such as potatoes. Later, you will be able to grow more advanced crops such as wheat or soybeans and process them to make more kinds of food and products. You can also produce fertilizers and use greenhouses to keep up with the food demands.
Import and export resources to and from your island Establish shipping lanes with cargo ships to fill the gaps in your production by bringing in various products such as crude oil, wood, or quartz. While the resources on your island may be limited, the world is not! Later you will be also able to establish shipping contracts with other islands for periodic exchange of goods.