Some games employ a type of morality in their gameplay. Actions taken within the game affect the player, and sometimes how the player is treated by the plot and NPC. This happens even if there were no witnesses to the action and no circumstances that point to you. Some games will make it impossible for one to continue if their Karma Meter is too low, or give a bad ending. Others will simply result in the character having an "evil alignment" and playing this way. Examples of Karma Meter include: