This isn’t the first time Chaos;Child was listed for release by a western retailer. Back in January, German retailer 4U2Play listed Chaos;Child alongside several other, still unannounced localizations.
According to Amazon Germany, Chaos;Child will be released on June 30. Though this release date is likely a placeholder.
Chaos;Child first launched for Xbox One in Japan in 2014, followed by PlayStation 4, PS Vita, and PlayStation 3 in 2015, PC in 2016, and iOS in 2017.