Former Valve writer Chet Faliszek has revealed that the studio intentionally leaked the trailer for Left 4 Dead 2 after the Entertainment Software Rating Board (ESRB) blocked its release. Faliszek, who previously worked on titles like Half-Life and Portal, detailed this unconventional marketing strategy in a recent YouTube video.
According to Faliszek, Valve opted to "leak" the trailer because the ESRB would not permit its official release. He noted that the statute of limitations has likely passed on any repercussions, humorously stating, "I think we can't get in trouble for that now. It was like 20 years ago."
While leaks can occur through various means such as hacking or accidental early publications, Valve reportedly saw an opportunity in this situation. The trailer in question is believed to be the "Zombie Survival Guide" cinematic trailer, which appeared online in October 2009, a month before Left 4 Dead 2's launch. The video showcased the game's violence, featuring survivors using chainsaws and firearms against zombie hordes, though Faliszek did not specify the exact content that the ESRB flagged.
"Yeah, it originally got leaked because we had this with the ESRB, so that's why a lot of the language had to get toned down," Faliszek explained, suggesting that the ESRB's concerns led to modifications in the trailer's content. Despite the initial censorship, the tactic appeared to be successful. Left 4 Dead 2 was released to critical acclaim, earning a 9/10 from IGN and being praised as a highly distinctive cooperative title. The game's success, however, did not lead to a third installment in the series.