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Ludum Dare is a 48 and 72 hour game making competition globally hosted over the internet; Ludum Dare 34 ran from December 11th to December 14th, 2015, with two combined themes, "Two Button Controls" and "Growing".

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.