Eagle-eyed gamers have spotted an entry in Steam's registry for Alan Wake.
Alan Wake fans on the Alan Wake forum believe the image, below, indicates the Xbox 360 exclusive will launch on PC.
A quote from developer Remedy's Aki Järvilehto, made to a Finnish website (via JustPushStart), is fuelling the rumour.
"We have received feedback from a lot of PC gamers, and I have to admit that yes, we somehow ignored that. Let's see if in the near future we could have some positive news to tell you about dating!"
We assume when Järvilehto says "dating" he means a release date.
In the run up to Alan Wake's May 2010 launch Remedy revealed it scrapped plans to launch a PC version - but didn't rule out doing it one day.
"We're a small studio. We're 50 people, and being a small studio it makes a lot more sense for us to focus on one platform," Remedy's Oskari Häkkinen said.
"Currently we're fully focused on the Xbox version, and [as for] what the future holds, we haven't got anything to announce, and we haven't thought that far right now."
Microsoft previously dismissed a PC version of Alan Wake in the interests of "matching this specific game to the right platform", arguing that Xbox 360 provided "the most compelling way to experience Alan Wake".
"Some games are more suited for the intimacy of the PC, and others are best played from the couch in front of a larger TV screen," the publisher said.
Eurogamer has asked Remedy for comment.