Over the past months or even years a couple of website indicated the future release of the next game in Left 4 Dead series. At that time we did not believe them as they weren’t reliable sources, but apparently they were right.
A few members of Dota 2 subreddit toured Valve to get a sneak peak of The International 3 and accidentally found a screen showing some internal logs of the company. The logs revealed that the company is working at Left 4 Dead 3 on Source 2 engine.
Sadly, we have no other information about the game and we’re sure that Valve won’t be happy about this leak. You can take a look at the picture below.