Blizzard Entertainment’s StarCraft II: Wings of Liberty became the number one selling game at the E-tailer GameStop.com. By Friday April 30th, the sequel to the massively popular RTS game StarCraft reached the number #1 with relative ease. Blizzard announced two different versions of the game, the standard version and the Collector’s version. The collector’s Edition will include 176-page art book, 2GB USB flash drive with replica of Raynor’s dog tag, behind the scenes DVD, the OST, Comic book, World of Warcraft in-game pet, and DLC contents from Battle.net. This is not surprising as StarCraft 2 has been in development for long time with massive fan base. Rumor has it hitting the street around June.