Valve Software has issued a statement insisting that new content for the Payday Heist game should not be considered as a prequel to Left 4 Dead.
Confusion on the matter arose after CVG published claims from an inside source who said that Overkill, the Stockholm studio that built Payday, announce trailer for new Payday content showed the bank-heist game set in a fictional hospital that was first introduced on Left 4 Dead. The hospital itself is considered as the canonical origins for the zombie-shooter's narrative.
Overkill tagged the new trailer with the description: "Have you ever wondered how the Left 4 Dead series began? It started with a heist!"
Now a developer at Valve, Chet Faliszek, has claimed the blurb was written "just by some over-excited marketing guys".
"This is a 100 per cent Overkill-made mission for Payday: Heist simply set in no mercy hospital from the Left 4 Dead series," he told Kotaku.
"It is not telling the origins of the Infection and is not canon," he added.
"There is a little cameo from one of the L4D characters and a fun little Easter-egg with a payoff later in Left 4 Dead. Just us having some fun with a studio we are friends with and who have also made a great co-op game".