Uses two-dimensional "sprites", 2D images created and used on a flat plane, as opposed to the three-dimensional models or environments found in 3D games.
Games that typically contain a large world that you are free to explore in any order you like. Completing objects may open up new areas or change how previous areas functioned.
A game in which the player is not constrained to achieving specific goals and has a large degree of freedom to explore, interact with, or modify the game environment
