Demo

According to an interview with Gabe Newell, managing director and co-founder of Valve, there will be a playable demo of Left 4 Dead on Nov. 6 for those who pre-ordered and Nov. 11 for those who did not, which is momentarily set for world release on steam on Nov. 18, 2008 and in retail locations Nov. 19, 2008 (U.S) and Nov. 21 2008 (UK)

The demo will contain both online and single-player mode, taking place in the movie, "No Mercy", in two chapters, Apartment and Subway. The demo will only feature the survivor co-op side (no playing as boss infected as it's for versus only). It is confirmed that the demo will come out for Xbox360 as well as for PC.