Theatrhythm Dragon Quest

Theatrhythm Dragon Quest is a 2015 rhythm video game developed by indieszero and sAs and published by Square Enix for the Nintendo 3DS. It was the first game of its type in the Dragon Quest series, and the third Theatrhythm game after Theatrhythm Final Fantasy and Theatrhythm Final Fantasy: Curtain Call. While following rhythm games' formula, players hit notes on the beat of music. The title also incorporates role-playing elements, allowing players to assemble a party of four characters to engage in battles or march automatically, in synchronizing with the players' beats.

Theatrhythm Dragon Quest features 60 songs from the first ten main Dragon Quest titles, with arranged versions of the music that were overseen by Koichi Sugiyama, the series composer. Additional songs were released in several waves of free downloadable content. The game was considered to follow the formula of Theatrhythm Final Fantasy. Reviews praised its gameplay mechanics, incorporating of series signature elements, and its aesthetic design, but criticized it for lacking original version soundtracks and featuring a limited song library. The game sold 120,000 copies in 2015.