Home News Rumour: Left 4 Dead 3 spotted during Valve office tour By Tom Ivan 2013-08-07T07:54:30.218Z Source 2 also said to have been listed on an internal changelog Comments Shares Prev Page 1 of 2 Next Prev Page 1 of 2 Next Prev Page 2 of 2 Next Prev Page 2 of 2 Next Comments Shares