Noun
English Wikipedia has an article on:MetroidvaniaWikipedia
Metroidvania (countable and uncountable, plural Metroidvanias)
(video games, informal) A (genre of) platform game with role-playing game elements and inventory items, involving more exploration than a traditional linear platform game.
As a result, when former series producer Koji Igarashi launched a campaign for a Metroidvania style game inspired by Castlevania: Symphony of the Night, Castelvania fans jumped at the chance to back it. Source: Internet