The original 100 Sleeping Princes and the Kingdom of Dreams mobile game is a puzzle RPG developed by GCREST.
The main staff and exact release schedule have not yet been revealed, although an official home page and Twitter feed (@yume100anime_PR) have been published for 100 Sleeping Princes and the Kingdom of Dreams.
Previously adapted into a web anime that debuted in April of 2017, otome mobile game 100 Sleeping Princes and the Kingdom of Dreams (known in Japan as Yume Oukoku to Nemureru 100 nin no Ouji-sama) is now being adapted into a full-fledged TV anime that will broadcast in Japan during the Summer season of 2018.