Jesse Schell, in his book The Art of Game Design - A Book of Lenses, introduces two Lenses: The Lens of Freedom and the Lens of Indirect Control91. Schell describes that, “we don’t always have to give the player true freedom - we only have to give the player the feeling of freedom. […] if a clever designer can make a player feel free, when really the player has very few choices, or even no choice at all, then suddenly we have the best of both worlds - the player has the wonderful feeling of freedom, and the designer has managed to economically create an experience with an ideal interest curve
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