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
Edit
| Logo | Chapter | Note | |
|---|---|---|---|
 | Chapter I | Operators | Added in 2.0 for free.
Contains 9 songs from 1.0 and 1.2. Two more songs, one of which is hidden, are added in 2.1. |
 | Chapter II | Disaster | Added in 2.0 for free.
Contains 9 songs from 1.0, 1.1 and 1.2. One hidden song added in 1.1.0 and two more hidden songs added in 2.1. |
 | Chapter III | Cytus | Added in 2.0 for free.
Contains new 9 songs (including hidden song) from 2.0. transferred one song from 1.0. |
 | 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. |
 | Chapter L | L |
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. |
