There's the age-old battle of good vs evil, and then there's Order vs. Chaos, but that doesn't mean there's always a distinction.
Chaos generally means the opposite of order, and order is often associated with peaceful, and therefore, good things like tolerance and cooperation. Chaos is, therefore, often associated with non-peaceful things like war and mindless killing. [[hottip:Note:The definition of "chaos" as disorder wasn't the original meaning. The original meaning of "chaos" was "void".]]
For this reason, you can often find the theme of chaos associated with villains. Villains fulfill this trope by speaking of chaos or maybe having "chaos" as part of their name.
Don't confuse with Chaotic Evil.
In Digimon, the digimons with "Chaos" in their names generally are evil. ChaosDukemon is a corrupted Dukemon, ChaosDramon is a violent and destructive mechanical dragon, the three Chaos Generals(ChaosGreymon, ChaosSeadramon and ChaosPiemon) and the Chaos Lord are villains in Digimon World 2, and Lucemon's mode change was named "Chaos Mode" in the Digimon Frontier dub.
In PS238 the forces of Chaos and the forces of Order are portrayed as Demons and Angels, respectively. Though neither side is particularly welcome on earth.
Michael Moorcock's Elric of Melnibone stories. The forces of Chaos almost always acted in a Chaotic Evil manner, and the adherents of Law were portrayed as Lawful Good (especially when fighting Chaos). It wasn't absolutely stated as being this way - it was noted that absolute Law led to stasis and sterility and a certain amount of Chaos was necessary for creativity and change.
L. E. Modesitt's Recluce series has order magic and chaos magic, with the good guys typically practicing black magic and the bad guys practicing white magic. The colors are based upon the complete absence of light (void, perfect order) or the presence of all kinds of light (making white, and chaos). The series recognized that chaos and order didn't necessarily line up with good and evil, recognizing either extreme was bad, but chaos magic causes lots of harm unless the practitioner is very careful. And being careful means being orderly.
The original version of Dungeons & Dragons had three major alignments: Lawful, Neutral, and Chaotic. Since many bad guys (such as orcs, dragons, demons, undead etc.) were on the side of Chaos, it wasn't long before "Chaotic" was equated with "Evil." The nine alignment system that has become associated with D&D was an attempt to mitigate this, as not everyone who is Lawful is necessarily good, and not everyone who's Chaotic is necessarily evil. This of course, brought its own little host of problems.
4e changes the nine-alignment grid system with a linear, five-alignment system. In order, the different alignments are Lawful Good, Good, Neutral, Evil, and Chaotic Evil, with the implication that Lawful Good is more "Good" than regular Good, and Chaotic Evil is more "Evil" than regular Evil.
In the Glorantha setting of Runequest Chaos itself is neutral (being the void outside the universe) but its manifestations within the universe tend strongly towards evil due to their twisting of reality's rules.
Subverted in the Palladium RPG system, where the "most evil" alignment is "Diabolic", which is similar to D&D's Chaotic Evil, but the "most chaotic" alignment, "Anarchist" is considered selfish in the sense of being a hedonist, but isn't considered evil.
Zig-Zagged in The Battle For Wesnoth. The game has only one alignment axis (Lawful, Neutral, Liminal, and Chaotic); most of the evil creatures (undead, necromancers, orcs, bandits) are Chaotic. However, Chaotic creatures aren't necessarily bad -- for example, you can recruit thieves while playing as the decidedly good Konrad, and the outlaw campaign (Liberty) features a band of freedom fighters which are all represented in-game as Chaotic units (specifically, Chaotic humans).
AdventureQuest Worlds has Good and Evil joining forces to battle Drakath, the Champion of Chaos, and his 13 Lords of Chaos.
Fire Emblem Tellius: The goddess of chaos has been imprisoned in Lehran's medallion for centuries, and if she breaks loose, it it prophesied that the world will be destroyed. Subverted, it turns out that the goddess of chaos actually is rather kind, while the opposing goddess of order is a Well-Intentioned ExtremistKnight Templar.
In Sonic Adventure, Eggman takes control of a water god called Chaos, whom Eggman calls the "God of Destruction". Once it becomes Perfect Chaos, it stops obeying Eggman and starts just destroying everything. This trope is later subverted when it's revealed that it was just a Mad God that needed pacifying.
I refuse to take part in an adventure that is metaphysically rooted in the destruction of an abstract and artificial concept like chaos simply because connotatively speaking it's less desirable than the equally artificial term 'order'.
When will you people learn that these are merely patterns that our temporal minds have made for us in a desperate attempt to make sense of an unimaginably immense and impersonal universe?
Order, chaos, these are words for things we don't even understand. Chaos is not something you fight against, order is not something you protect. They have no more power or importance than that which we give them.
And I, for one, will not perpetuate this asinine paradigm that there is something inherently wrong about chaos!
El Goonish Shive. The character Pandora Chaos Raven is an immortal with a highly chaotic nature (e.g.her cloud form constantly shifts and changes) who says she's going to destroy our world and replace it with another one. She has also tried to have several human beings killed.
Pandora merely punched Magus away; also, he's the only one who calls her "Chaos". She tried to get Abe killed -- but it's not that she haven't an understandable reason to be very upset.
Inverted: Last Res0rt has the tagline "Embrace Cha0s", with the implication that the Celeste and the Church of the Endless represent a repressive version of Order.
Five hats means that five tropers think it is ready to publish.
You are saying that you think this draft is ready to be published. That means the description is not ambiguous,
it doesn't duplicate an existing trope, there are at least three examples, and the title makes sense.
Is that what you meant to do?
You are saying this draft has a ready-to-publish hat it does not deserve and you are taking it back.