For me there a few I put alot hours into and I still pick up and play. My first real PS3 Addiction to a campaign was Assassin’s creed 1 way back all those years ago when I first got my sys I was blown away by detail and fun. Around the same my next addiction Grand Theft Auto IV again I was blown away by game and hours of fun I was having in Liberty City. After that one game what blew me away and I spent HOURS up late on school nights running cross the wasteland and having a real great time and that was fallout 3 that game really hold my attention for months on end. Then came game I first play on PC and then later got second one on ps3 and that was Mass Effect 3 and it had everything I wanted in game and when 3 came out I was standing in line with my N7 hoodie in rain at midnight wanting my copy. Dragon age is other one what suck me in big time and elder scrolls oblivion and recently elder scrolls skryrim and currently it has be Yakuza dead souls and Ryū ga Gotoku 5.
I sunk so many hours into the single player and the multiplayer of Uncharted 2. I also spent a lot of hours across all three Mass Effect games with Mass Effect 3 being the biggest time sink. Skyrim is on my backlog and I have a feeling that game will take awhile to get through as well.