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Games that try to simulate real-world activities (like driving vehicles or living the life of someone else) with as much realism as possible. Simulators generally require more study and orientation than arcade games, and the best simulators are also educational.

Fangames are games built around established characters, stories, or worlds from other games or media.

Games that are unearthly and bizarre in theme, aesthetic or story.

Something out of the ordinary, or peculiar. Often far beyond one's imagination.