What game have you wasted most of your time on? World of Warcraft. All the hours I spent playing it add up to well over half a year, last I checked. Starcraft Brood War is probably in second place.

If you had to play 1,000 hours of a game, which game would it be? I plan on getting here (and exceeding it) eventually with every single strategy game that I own, so one of those.

Of the many time-consuming single-player games there are in the world, which ones do you think are actually not a waste of time? Games are as much of a waste of time as books are. In other words, they aren't. Search your feelings, you know it to be true.