''Chaos Rings'' is a series of {{Eastern RPG}}s for {{iOS}} devices, developed by Creator/MediaVision (the studio behind the ''Franchise/{{Wild ARMs}}'' series) and published by Creator/SquareEnix.

The games feature two character parties, and use a turn-based battle system, which lets the characters attack either alone, or as a pair. The games all have themes of sacrifice for the greater good.

The games in the series are:

[[index]]
* ''VideoGame/ChaosRingsI''
* ''VideoGame/ChaosRingsOmega''
* ''VideoGame/ChaosRingsII''
* ''VideoGame/ChaosRingsIII''
[[/index]]

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!!Tropes present in all three games:

* ArbitraryHeadcountLimit: Averted in the first game and the normal mode of ''Omega'', where you only have two people in your party at any time, but played straight otherwise: in Extra Mode of ''Omega'' and nearly the entirety of the third game, your party has more than two members but the active party is still limited to two people. Ditto for ''Chaos Rings III', except that this time the headcount is raised to three.
* BonusBoss:
** In the first game, after [[spoiler:the Almighty]] is defeated, two cylinders will appear in each of the first four dungeons (plus another at the Bereshith Road). Inside the cylinders are bosses with levels higher than even the TrueFinalBoss, and defeating all of them with all couples is required to unlock the final BonusBoss, [[spoiler:Piu-Piu]].
** In ''Chaos Rings II'', there are ''plenty'' of Piu-Piu P.U.B. quests that are only available after you defeat the FinalBoss of the game.
** ''Chaos Rings III'':
*** In Story Mode, similar to the previous game, many high-level quests are only available after the FinalBoss is defeated.
*** In Battle Mode, we have Catastroph, the final opponent in the normal battles, and the S-class superbosses which you can only fight in the 8th, 18th and 28th days of each month.
* BreakMeter: The Break Gauge is present in all three games, although it is slightly changed for ''II''. Instead of having a break meter for each participant in battle, there is an overall one for the entire battle, which is filled or depleted as you attack enemies or take damage. When it swings towards the player, you get improved damage from your attacks and take less damage from the enemies. When it swings towards the enemies, the reverse happens.
* CombinationAttack: All the games have a choice to have both party members attack together to do improved damage, although this also means all attacks directed your way hit both combatants. The third game introduces Awaken, a dual attack which allows you to [[SummonMagic summon]] an Ophan.
* DualBoss:
** In ''Chaos Rings'', there are the fights against the other couples, as well as the [[EvilTwin Atman]] bonus bosses in Bereshith Road.
** In the story mode of ''Chaos Rings II'', we have: Progenitor's Left Eye and Progenitor's Right Eye halfway through Purging Sin and [[spoiler:Cyllis and Yorath at the beginning of the Conglom Plant, though you only need to defeat Cyllis to win the fight. Dante and Rachel (which refers to the abomination mashed from them by Cyllis) can be seen as this, as it only has a single health bar but each turn can do two actions, one physical and one magical attack]]. In extra mode, there are the recurring fights against Garrick and Alto, as well as one fight against each playable couple in the original game plus Cyllis and Yorath.
** Near the end of ''Chaos Rings II', we have a fight against [[spoiler:Conquest and War]], and later [[spoiler:Famine and Death]].
* DuelBoss:
** The first game has [[spoiler:Eluca vs. Eluca Copy]] in Eluca and Zhamo's story, and [[spoiler:Olgar vs. Ayuta]] in Olgar and Vahti's story.
** In the second game [[spoiler:Vieg fights Olgar in a one-on-one duel in their couples' match in the Ark Arena, since their wives are indisposed]]. Later, you have to go through the first half of the third dungeon with Vieg alone until the boss, Progenitor's Spine, is defeated. And near the end of the game, [[spoiler:Vieg fights Yorath one-on-one, then when Vieg collapses Olgar takes over for him]].
** In ''Chaos Rings II'', all Ophanim battles (except for [[spoiler:Ophan Lessica]]), plus the FinalBossPreview (at the beginning of the game) and the PostFinalBoss (at the very end) are fought with Darwin alone. And in the post-game, for each party member, there is one P.U.B. quest during which they must fight a boss one-on-one: [[spoiler:Darwin vs. Neron, Orlando vs. Li Hua, Marie vs. Death, Araki vs. War, Conor vs. Famine, Li Hua vs. Conquest and Lessica vs. Herald]].
** In ''Chaos Rings III'', the protagonist fights [[spoiler:Drei 6]] in the Winter Wonderland, although you're not supposed to win it.
* {{Earn Your Happy Ending}}: All three games make a very big deal out of this.
* ElementalRockPaperScissors: Blaze beats Gale, Aqua beats Blaze, and Gale beats Aqua.
* {{Happily Ever After}}: Shown heavily throughout the games, but takes the cake in ''2''. [[spoiler:After defeating Piu-Piu and letting him regain his memories, he rewards the characters by showing his true power and destroying the Hall and Amon in one blast. This leads to the eight of them (Lessica included) safely landing on the surface of the earth. Though, it might be {{Bittersweet Ending}} somewhat, just because Piu-Piu mourns Jodie, Meg, and Catherine's burning up in space, and it ends with Darwin and the boys failing to create new cut-outs and Marie and the girls substituting for Piu-Piu's harem.]]
* HopelessBossFight:
** Both modes of ''Chaos Rings Omega'' begin with one fight that you cannot win: against the Agent in normal mode and Piu-Piu in extra mode.
** The FinalBossPreview at the very beginning of ''Chaos Rings II'' and subsequently every fight against the Herald [[spoiler:except for the very final one. The first fight against Bachs also counts]].
** In ''Chaos Rings III'', we have: Aries in the Ruined Battleship (against which you are only supposed to survive a few turns, not win); the two Drei 6 battles in the Forgotten Village; Johannes in the Chancellor's Cup; the first two Axion fights immediately afterwards, and finally Auz in the Terraformer Ark. Downplayed, in that it is completely possible to win these battles if you have strong genes, and for each victory you'll get a special Fate Seal trophy, but the story still proceeds as if you lost.
* HubLevel: Each game has one: the Ark Arena for the first two, the All-Seeing Eye for the third, and the Spaceport for the fourth.
* PaletteSwap: Any enemies in the same family.
* PowersAsPrograms / PowerCopying: Gene plates in the first two games and Sopias in the third. Both function identically - they are obtained from defeated enemies and can be filled with a set number of skills learned from defeating more of those enemies. Up to three can be equipped on a character at a time.
* LovableSexManiac: Piu-Piu. It's even claimed that his perversion was so great, it had to be separated from him and made into a prototype Agent called "Libido". [[spoiler:Who is a BonusBoss.]]
* SecondHourSuperpower: In ''Omega'' and ''Chaos Rings III'', you don't get access to Genes until after the very first tutorial battle.
* SmallAnnoyingCreature: Piu-Piu.
* VendorTrash: Piu-Piu's collections appear in all three games, and are worth "more than money" to him. In every case, they were confiscated and scattered as being inappropriate. Given [[DirtyOldMan his personality]], it's not hard to [[PornStash guess what they are]].

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