From GameWatcher: “PQube dated the visual novel Our World is Ended for the west today. In North America, itll be out on March 26. Europe will have access a few days earlier on March 22.
Our World is Ended will have a special Day One Edition. By getting the title at launch, youll receive an exclusive art book and keychain.”
Source: N4G PC Our World is Ended release date and Day One Edition announced