In Dugeons and Dragons, there are many components that make you change your behaviour. You won't start playing in the same way as you'll finish.
1. NPCs (non-player character) are different in each game, so you are going to discover how bad and unkind they could be.
2. Dungeon Masters tend to hide monsters. At the end, you'll expect them in each corner.
3. Possibly, you'll find some radical prayers to any God that could disturb you. That will make you dislike this kind of people, or their God's other followers.
Creators knew this will happen, so they designed a method to make the player keep a general point of view based in two axes, (Chaotic-Lawful) and (Evil-Good), which have in his center Neutral-Neutral or "True Neutral".
Chaotic: this means that you don't follow the rules (state rules, laws or others standards). Somebody Chaotic-Good would try to do good things by his own, somebody Chaotic-Bad would try to break the rules because he thinks they are stupid and not good for him, or bad for the other.
Lawful: this means you follow the imposed rules and you like following other people and making what they told you to do (serfs, priests or citizens). Someone Lawful-Good would be a hero or a king and help because his public image, it could be a guardian that follows his instructor commandments. Someone Lawful-Bad doesn't enjoy doing bad things, or not at all. He just make them because they seem to be "bad", or because someone told him that he must do that.
Neutral-Neutral (True Neutral): does whatever he wants, tries to survive and keep alive these who come with him. It doesn't use to live among huge groups and normally stays by nature, living in his own.
This method caused some problems with the real catholic followers in the early eighties, and they made the company to remove it from the game for some years.
They know me as Carlos.