Sokoban [biohazard edition] game was developed by Game Plexus, a subsidiary company of Media Plexus. The orriginal Sokoban was created in 1981 by Hiroyuki Imabayashi, and published in 1982 by Thinking Rabbit, a software house based in Takarazuka, Japan. We liked the concept and wanted to re-popularize the game by giving it a more of a "today" look and feel. The game is a part of a project we have piloted to solidify our entry into Flash and social network online gaming industry.
Sokoban is a type of transport puzzle, in which a player pushes boxes around a maze, viewed from above, and tries to put them in predetermined areas.