It would take you...
1536 continuous hours
64 days,45 minutes
of gameplay to complete your Steam library
My profile says my game completion is only 33%, yeesh! However I have a lot of stuff from bundles and such that I never really intended to play anwyay. I have 69 game reviews atm! 69 dude!
"I didn't know you had it in you. Sorry, poor choice of words." - David