The "spiritual sequel" to Amnesia: Dark Descent gets a creepy trailer that shows and hears more than it actually explains. Amnesia A Machine for Pigs, aside from a unsettling title, looks like we're trading Europe for Mexico according to the description.
From the main site:
"The year is 1899. Wealthy industrialist Oswald Mandus has returned home from a disastrous expedition to Mexico, which has ended in tragedy. Wracked by fever, haunted by dreams of a dark machine, he recovers consciousness in his own bed, with no idea of how much time has passed since his last memory. As he struggles to his feet, somewhere beneath him, an engine splutters, coughs, roars into life..."
Amnesia A Machine for Pigs doesn't have a set release date, but Frictional Games has said "before Halloween," thought that's unconfirmed.