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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.

Focusing on systems that perform tasks automatically, this category includes games where players design, build, and manage processes to achieve specific outcomes.

Games which have short playtimes and can usually be completed in one sitting.

Products that involve or comprise source code, including programming games; does not refer to products with their own source code available, open source or not.

Resources for building and relating to User Interfaces, how the user interacts with your program