As of now, Konosuba Fantastic days is offline.

It had a good run. This subreddit will, of course, remain open, but the game is closed. There is currently no way to play the game in English. There will be apps available ONLY on the Japanese app store in Japanese. There are no other official releases planed. Thanks for the ride guys, we'll wait for the inevitable announcement of the next Konosuba Gacha.