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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.

A collection or bundle of assets together as a single download or purchase

Related to the process of arranging game maps using a set of tile graphics (often call tilesets)

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

Unreal Engine is a 3D game creation tool