Valve, creators of best-selling game franchises (such as Half-Life and Counter-Strike) and leading technologies (such as Steam and Source), and independent developer and publisher Hothead Games today announced that the Windows version of Penny Arcade Adventures: On the Rain-Slick Precipice of Darkness, Episode One is now available via Steam (www.steamgames.com). In addition to this first installment, Steam will also offer future episodes in the series as they are released by Hothead; in celebration, Episode One has been enhanced with achievements for Steam purchasers.
