I recently ordered a refurb PS3, and I've been looking around at some games, but I guess I'm curious what other people would recommend. I've been looking at Gran Turismo, Last of Us, Final Fantasy X/X2 remastered, and Motorstorm. I generally like racing games, RPGs, open world games, and visual novels. I'd prefer it limited to console exclusives, as I own an Xbox 360 already and I more than likely already own it, or not cared for it, or at least known of it's existence.
Ni No Kuni Ico HD Collection Demon's Souls Tales of Graces F Valkyria Chronicles (admittedly better if played on PC or PS4) Those are some RPGs/open worlds off the top of my head--someone will probably have better suggestions before I can think of more.
The list above is good, I'd like to throw in: The Yakuza series Drakengard 3 (but you should play Drakengard and Nier first which are not PS3 exclusive)
