Good news to world of warcraft, WOW GOLD World of Warcraft has sold 8.6 million boxes at retail. Gamasutra has received an interesting stat from the good folks at NPD: after hearing that The Sims 3 sold over 800,000 copies in its first month, they were curious to see what kind of unit sales our own World of Warcraft has experienced.

And the numbers are pretty big: among the original game and all of the expansion packs since the vanilla release over four years ago, NPD says 8.6 million boxes of WoW have been sold in the US. That's a little misleading if you're comparing it to actual subscription numbers: remember that this is over three different releases (so the actual number of all-time players, not current players, is probably 1/3 of that), WOW GOLD and it includes different collectors' editions of each of the three game editions. So there are nowhere near 8.6 million US players of WoW -- that's just how many times players have come through the retail line with the various releases.