Putting together a list like this isn't easy. Sales figures are often released by title, with no breakdown across platform. Thus, it's actually really hard to assemble the best-selling PC games into order. Nevertheless, you're going to feel some nostalgia, a little bit of love, and a whole lot of angst because, even with a lot of deserving releases on this list, many get left off.
Without further ado, we present the top 15 best-selling PC (and Mac) games of all time, based on a long list of sources. There are some old favorites here, and some new classics-to-be. A few of the titles might surprise you, so have a look!