Metroidvania is a sub-genre of action-adventure games and/or platformers focused on guided non-linearity and utility-gated exploration and progression. The term is a portmanteau of the names of the video game series Metroid and Castlevania, based on the template from Metroid from 1986, Castlevania II from 1987, and Castlevania: Symphony of the Night from 1997. Since Symphony of the Night creator Koji Igarashi took more inspiration from The Legend of Zelda series, this gameplay formula of action-exploration is less commonly known as a Zeldavania or Zeldatroid. These games usually feature a large interconnected world map the player can explore, although parts of the world will be inaccessible to the player until they acquire special items, tools, weapons, abilities, or knowledge within the game. Acquiring such improvements can also aid the player in defeating more difficult enemies and locating shortcuts and secret areas, and often includes retracing one's steps across the map. Through this, Metroidvania games include tighter integration of story and level design, careful design of levels and character controls to encourage exploration and experimentation, and a means for the player to become more invested in their player character through role-playing game elements. While early examples were usually two-dimensional side-scrolling platform games, the term has since been applied to top-down and 3D games. The first Metroid game in 1986 established principles of the non-linear platformer that were refined through multiple iterations, with Super Metroid in 1994 considered to have polished the style of gameplay core to Metroidvanias. Castlevania: Symphony of the Night in 1997 is considered the defining Metroidvania game, incorporating role-playing game elements from The Legend of Zelda series with non-linear traversal within the Castlevania series; most subsequent Castlevania games followed its approach and refined the genre. Symphony of the Night's assistant director, Koji Igarashi, is credited with establishing key principles of Metroidvanias through his work on other Castlevania games. In the 2010s, a resurgence in Metroidvanias came about due to several critically praised, independently developed games. From Wikipedia
