(note: this game is abandoned) Click 'New Data' and create a new data file (Can't be saved or loaded yet) Customise your character Click 'Play Offline' Wait for the world to generate (This will take around 2 minutes) Use the TP Pad and go to the mines. You can also use the button in the bottom left corner to go back to your base.
thanks to mr scratch fan for everything else edit: well this is sad mobile support added