As much as I love video games, I could count on both hands the number I've played through more than once. While many people enjoy replaying titles on higher difficulty levels, or trying different ways of approaching RPGs a second or third time round, I find that it's often a case of "too many games, not enough time." I want to play as many as possible, rather than spending another 15 - 100 hours replaying the same ones.
The Witcher 3 is a great example. It's probably my favorite game of all time, but I couldn't face replaying through all 150+ hours (with expansions) again, even if it did mean giving Geralt new skills and making different decisions.
There are some exceptions, of course. I completed Vampire: the Masquerade - Bloodlines (my second favorite game) three times just to try the various clans and builds; I simply had to experience the difference between playing as a saintly, if sanctimonious, Jedi and an evil but pretty cool Sith in both Knights of the Old Republic games; and I restart Crysis and Metro: Last Light every time I update my graphics card.
For this Weekend Open Forum, we're asking which games have you played all the way through more than once, be it for a harder challenge, to experience content you may have missed the first time, or just to test new hardware, whatever. Maybe there's only been one title, maybe there have been too many to remember, just let us know in the comments below.