Selling Minerals for Credits

To earn credits for upgrades etc you can sell the minerals you harvest from asteroids.

Minerals can be sold at Depots, and the closer they are to Earth the better the sale price. Once a Depot has been built by a Harvester, you can transport minerals there to be sold. Higher level Depots have more cargo capacity and can therefore hold more minerals to be sold at a time. To sell minerals from a Depot, first transport minerals to the Depot. Click the Sell button in Depot’s submenu, and select how many minerals you want to sell (it will show a price), Click SELL to confirm.