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Games that can be played using only a mouse or other pointing device, and don't require any other input.

Contains (or is themed around interacting with) a musical score, soundtrack, or backing track(s).

Utilizing content created by algorithms rather than human made content. Often utilizes a "seed," a relatively small string that is used to control the randomization algorithm that generates the entire world.

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