
One of the more interesting games of 2005 was Haunting Ground, a game made by Capcom as a successor to the Clock Tower series. It had a panicky heroine with few means to fight back other than her dog (and you could mistreat the dog badly enough to where it wouldn't help you), plus a lot of gruesome off-camera deaths.
Resident Evil 4 would have been my GOTY 2005... if Dragon Quest VIII hadn't come out in 2005. That game is still one of the best I've ever played. My new wife, myself, and my stepdaughter all played the game to completion and had our own save files.