Difficulty

There are 3 different Difficulty modes:
 * Softcore mode
 * Mediumcore mode
 * Hardcore mode

In Softcore mode, when you die you drop half of your money.

In Mediumcore mode, you drop all of your items when you die, including money and ammo.

In Hardcore mode, when you die you drop all of your items and become a ghost. While in this state you cannot alter the world in any way. Once you quit to the main menu the character is gone.