Fallout: New Vegas and Dungeon Siege devs Obsidian are teasing a new game on their official website.
Known only as 'Project X', Obsidian's site leads to a web forum for users to speculate over the nature of the game. Before the user clicks through the forum, a number 4 is displayed followed by two lines of text:
'What do the words mean?'
'Nothing. The Dirge of Eir Glanfath is sound without form, a lone voice crying out in mourning because it must.'
Deep. We'll have more news as it comes to hand. In the meantime, there is a single active thread in the speculation forum, which you can view now.