Tripwire Interactive announced that Killing Floor is now available in stores across Australia with a MSRP for the retail version of $29.95 (AUD). The game is rated MA 15+ and it is same version available on Steam or in stores across Europe and North America. Killing Floor is set in and around London after a mad scientist's "specimens" have broken loose and gone on the rampage. Killing Floor includes a co-op game mode for up to six players obliterating multiple waves of specimens, a solo game mode for offline play, 9 different monster types and more.