Game

Uma Musume: Pretty Derby (ウマ娘 プリティーダービー, Uma Musume Puritī Dābī) is a mobile game by Cygames and still under development.

Gameplay
On 23.04.2017 Cygames released a first gameplay teaser. According to it you'll be able to compete in races, train your horse girls, read through story sections and participate in live shows.

In an interview with Famitsu one of the developers of Uma Musume stated that the current development status is around 25%. They plan to release more information about the gameplay at AnimeJapan2017. There is also a short statement about the planned release date: こ、今年のG1が終わるまでには…..！

You can find the interview here.