GamingShogun reports that Valve software has released the first screenshot from their soon-to-be unveiled 'Dark Carnival' campaign for Left 4 Dead 2. The unveiling as well as first public playing of the campaign will take place at this year's PAX.

"Valve has announced it will unveil the next chapter in its upcoming Left 4 Dead 2, called 'Dark Carnival', at this year's PAX event which runs from September 4th through 6th. In celebration of this announcement, they have released a teaser screenshot (see above) showing some very creepy clown..."

JelalTrueshot via gamingshogun.com »