Sokobania is a puzzle game in which the player pushes boxes around to position them on designated places.
You move up, down, left and right the warehouse keeper to help him organize the warehouse.
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Sōkoban (倉庫番) - (n) warehouseman; storekeeper
Sokoban was created in 1980 by Hiroyuki Imabayashi, and was published in 1982 by Thinking Rabbit, a software house based in Takarazuka, Japan.
It spawned a genre of puzzle games and have been cloned and ported to almost all computer and operating systems in existance.
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Includes more than 100 levels.
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Gameplay video at http://www.youtube.com/watch?v=qC_L5fSa5e4