New York - Video game publisher Take-Two Interactive said on Friday that it has changed the name of its Irrational Games studio to 2K Boston and 2K Australia. The studio has developed titles including "System Shock 2," "Freedom Force," "Tribes: Vengeance" and "SWAT 4," and will soon release "BioShock." Take-Two said Irrational Games' staff has almost doubled since its acquisition in 2005.