And it's a mystery!

While the world's been busy playing a ton of Dark Souls III, the folks who've been chipping away at the first game on PC this week have had to deal with more than just tough bosses and player invasions.

Kotaku reports that though the PlayStation 3 and Xbox 360 versions are plucking along just fine, no one is able to cooperate with or invade one another on PC. They can't even use Soapstones to leave messages for other players to see, which rules out the possibility of a matchmaking error. Some configuration change to Dark Souls: Prepare to Die Edition (reflected on this Steam Database page) seems to be responsible.

Bandai Namco's Community Manager tweeted that he'd alert the developers, but no changes have been made since. I'm choosing to believe this is just another layer of obfuscation by From Software, worried by how quickly people finished the newest game. Gotta keep players on their toes!

Nobody Knows Why Dark Souls I For PC Has Been Offline for a Week [Kotaku]