Valve has now fully opened the floodgates, allowing gamers of all colours (Gold and Silver Xbox 360 members), creeds (Xbox 360 and PC) and lifestyle choices (whether you’ve pre-ordered the game or not) to sample the delights of Left 4 Dead 2 in demo form.

Additionally, a new update for the PC demo has been released to fix sound and microphone issues gamers were having (settings being reset) that affected those of you running the demo on Windows 7 and Windows Vista.

The full version of Left 4 Dead 2, Valve’s follow-up to their original zombie shooting cooperative shooter, releases over the week of November 17th worldwide.