A lot of characters in video games live on chaos, like these most chaotic ones.
People can think of a lot of different things when they hear the word chaos. Just by definition, something that is chaotic is totally out of order. Depending on how a character is aligned, chaos means something different. The alignment of a character in most fantasy RPGs, like D&D, is based on their morals and ethics.
Based on alignment, a chaotic character is one who values freedom more than most other things and doesn’t like to work under any kind of established control. A chaotic person isn’t necessarily a bad person, but they are thought to be reckless and irresponsible. However, they can change quickly and aren’t stuck in their ways of thinking.