Resources

Resources can be harvested from planets. They can be used to replenish the ship's needs or be sold to others.

There are three kinds of resource: Metals, which can repair your hull; Minerals, which are used to fill the jump drive; and gas, which is used as fuel. Each kind of resource comes in common, uncommon and rare varieties, with the rarer varieties replenishing more and being worth more.

Minerals
Adventure mode: One common mineral refills 0.225 EM Tanks, one uncommon mineral refills 0.45 EM Tanks, and one borate 0.75 EM Tanks. Refueling using common and uncommon minerals is therefore cheaper than selling them for the best price and using the money to buy fuel (100). Only borates will be worth more than the EM refill, if they are sold for 80.

Rogue mode: Just as sale prices, the refill rate is reduced by 25%. However, this has the side effect that using minerals is still more profitable than selling minerals, unless someone needs to buy something else.

Trade value
The price of the resources depends on the difficulty level. In rogue mode the prices are 75% of the shown values. Gates pay 75% compared to all other merchants and starports (to make use of the player's weak position, when the player desperately needs to pay their fee).

Every species has specific favorite resources and favorite resource categories.

Selling resources to the Vine Consensus is influenced by their seasons. More info here.