Kadokawa Games released in 2016 February in Japan the official Kantai Collection PlayStation Vita game the Kan Colle Kai.
The game available in package version and in DL version too and on the release week the game had a nice position in the Japan Chart.
Despite the good start the sale dropped down and maybe because of this (or not) Kadokawa Games announced sale end of the game!
You can buy the package and even the digital version of the game only until 2017 January! After that you can’t buy the game! So if you want one buy it as soon as you can!