Chapters are groups of songs that can be played and unlocked through purchases. As of Cytus 7.0, there are 10 main chapters, a hidden album called Cytus Alive that depicts the story of Cytus, and nine side chapters: Prologue, Symphony, Knight, Retro, Timeline, Million, Deemo, L, and Night Keepers.
List of Chapters
|Chapter I||Operators||Added in 2.0 for free.|
|Chapter II||Disaster||Added in 2.0 for free.
Contains 9 songs from 1.0, 1.1 and 1.2.
|Chapter III||Cytus||Added in 2.0 for free.|
|Chapter IV||The Silence||Added in 3.0 for free.|
|Chapter V||Vanessa||Added in 3.0 as an IAP.
Unlocked for free in 4.0.
|Chapter VI||The Lost||Added in 3.0 as an IAP.
Unlocked for free in 4.5.
|Chapter VII||Loom||Added in 4.0 as an IAP, containing two hidden songs.
Unlocked for free in 5.0.
|Chapter VIII||Another Me||Added in 4.0 as an IAP,|
|Chapter IX||Buried||Added in 5.0 as an IAP, containing one hidden song.
Unlocked for free in 6.1.
|Chapter X||The New World||Added in 5.0 as an IAP.
Unlocked for free in 7.0 along with Chapter S.
Added hidden chart in 10.0.
|Chapter 0||Prologue||Added in Lambda as an exclusive chapter.
Made available as a permanent IAP worth $4.99 in 6.1.
|Chapter S||Symphony||Added in 4.5 as an IAP.
Unlocked for free in 7.0 along with Chapter 10.
|Chapter K||Knight||Added in 6.0 as an IAP.
Unlocked for free in 8.0.
|Chapter R||Retro||Added in 7.0. Available as an IAP worth $4.99. One hidden song added in 10.0.|
|Chapter T||Timeline||Added in 8.0. Avaliable as an IAP worth $4.99.|
|Chapter D||Deemo||Added in 9.0. Available as an IAP worth $4.99. One hidden song added in 10.0.|
Added in 9.0. Available as an IAP worth $9.99.
Easy and Hard charts remade in 9.1, The old charts are still in the game and can be accessed as hidden.
|Chapter N||Night Keepers||Added in 10.0. Available as an IAP worth $3.99.|
|Chapter M||Million||Added in 8.0 for free to celebrate the success of the Million Download Plan.|
|Cytus Alive||(Hidden album)||Added in 6.0 for free.
Available by tapping on the Easy or Hard song completion circles located in each chapter screen for chapters 1-10 and Million.