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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.

First-Person Shooter refers to a genre where the camera is at the same place as your eyes: you see (on screen) the scenes just like you'd experience it.

Sprites are generally 2D images used in games to represent objects. They can be animated or static, and come in different styles like isometric or top-down.

Unity is a game engine for 2D, 3D, AR and more