available on Valve's Steam digital distribution service for $40 and $30, respectively. Warhead will be available tomorrow outside North America.
Of course, Crysis is now the stuff of PC legend for being "that game," which will take your two-year-old PC and teach it the meaning of pain. Crysis Warhead is its "less demanding" little brother who just wants to play. Remember, you can always try the Crysis Demo to see how your PC will cope.