Zero. Have not found a game i enjoyed enough to go through and track every achievement. Not enough time in the day to do that crap and i could care less about achievements. I have beaten and enjoyed plenty of games but as for 100% most of those achievements are just time filler BS that i do not have the time or patience for.
1- Sega Genisis Collecton- and that was only because I was able to do it in under 2 hours --- AsRock Z77 pro, i7 2600 , ASUS GTX 670,16gb DDR3 ram, 128gb SSD, 1tb HDD,500gb HDD Rosewill Xtreme 750W, Asus12 x BDW,OEM dvdrw, Rosewill Thor V2