Kadokawa’s Young Ace magazine revealed on Twitter that Roto Usagi will release a new manga titled Fate/Ikustella on June 6, 2018. It’s a spin-off based on Type-Moon and Marvelous’ Fate/Extella: The Umbral Star game. The story takes place in a parallel world where the Masters are babies, and Servants Nero, Tamamo, and Altera have to take care of them.
Fate/Extella: The Umbral Star game launched for the Playstation 4 and Playstation Vita in January 2017 in both North America and Europe. Japan got an earlier release of the game in November 2016. A PC version of the same game was also released last July 2017. A new Fate/Extella game titled Fate/Extella Link will launch for the Playstation 4 and Playstation Vita in Japan on June 7, 2018.