PlayStationin
PlayStationin is the Finnish genitive form of the brand name PlayStation. It is used to indicate possession or association, equivalent to “of the PlayStation” or “the PlayStation’s” in English. In Finnish, possessive forms are common when describing objects related to a brand, such as PlayStationin ohjaimet (the PlayStation’s controllers) or PlayStationin pelikirjasto (the PlayStation’s game library). Because PlayStation is a proper noun borrowed from English, the base form is retained while a possessive suffix -in is attached.
PlayStation is a brand of video game consoles and related services developed by Sony Interactive Entertainment.