- Is a game development corporation based in Taiwan.
- Has released nine games on iOS and Android platforms: Soul of Eden, Sdorica -Mirage-, Mandora, Cytus, Cytus II, Deemo, Implosion - Never Lose Hope (Implosion for short), VOEZ, and upcoming games is Deemo II.
- Planning on releasing a new role-playing game named Project Symphony, with a projected release date in 2017.
- Most Rayark games are free to download on Android, but require players to purchase new chapters or full access.
- The most popular and most downloaded games are Cytus and Deemo, both of which are music-rhythm based games.
