One of gaming's oldest 'who did it' mysteries has finally been solved, and the answer is the obvious suspect: Valve did it.
Former Valve writer Chet Faliszek revealed in a newly posted video about cut lines in the game that the famous 2009 Left 4 Dead 2 trailer 'leak' was staged by the company itself. "For Left 4 Dead 2 with the ESRB... we leaked our trailer ahead of time because they wouldn't let us release the trailer," Faliszek said.
The Entertainment Software Rating Board is the self-regulating body that, since 1994, has assigned age ratings to games sold at retail. In the late 2000s, a publisher that wanted space on major retailers' shelves had to submit to the ESRB's standards - and those standards extended to how games could be marketed. Among the restrictions were rules against trailers containing "graphic and/or excessive depictions" of violence, weapons, blood and gore, as well as crude or offensive language.
The Left 4 Dead 2 trailer that appeared online in 2009 was, by those standards, a problem: Ars Technica described the footage at the time as looking "like it's straight from a high-gloss action movie." As Faliszek pointed out, this is a game where people are torn apart with chainsaws - yet the ESRB's marketing rules forced Valve to tread carefully.
It was not the first time that year that the two had clashed over marketing. Earlier in 2009, the ESRB asked Valve to change a promotional image for Left 4 Dead 2 that showed a hand with three gnawed-off fingers, leaving two intact digits to suggest the sequel's number. To satisfy the board, Valve shot a new version with two of the fingers put back in place and simply curled down - the image that eventually appeared on the game's box art. Ars noted the absurdity at the time: a game full of chainsaw dismemberment, but bitten-off fingers on the logo were apparently crossing a line.
The ESRB had shown a similar appetite for policing trailers two years earlier. In 2007, it requested the removal of trailers for D3's Dark Sector and 2K's The Darkness even after they had circulated online behind age gates. "The mere presence of an age gate does not permit a publisher to simply put whatever content it wishes into the trailer," ESRB's Patricia Vance said then, noting all trailers must conform to the Advertising Review Council's principles, which prohibit content "likely to cause serious offense to the average consumer."
Faliszek, who left Valve in 2017 and later co-founded the studio Stray Bombay, seemed relaxed about finally owning up to the scheme: "I think we can't get in trouble for that now. It's like 20 years ago."
The revelation recasts a moment many gamers remember - the sudden appearance of glossy, high-production Left 4 Dead 2 footage that fans assumed had escaped Valve's control. In reality, it was a calculated workaround: a leak by the publisher, of the publisher, for the publisher, engineered because the official route was blocked. Whether the ESRB ever suspected remains unknown - but Valve's unofficial trailer went on to do exactly what it was designed to do: build enormous hype for one of the most anticipated sequels of 2009.
