Monster Hunter World: Iceborne has shipped over 2.5 million units globally. This figure includes both PS4 and Xbox One sales (Iceborne isn't out on PC until January next year) and takes into account both digital and physical numbers.
Considering Iceborne has only been out for a week, that's a pretty impressive figure. The massive expansion for 2018's Monster Hunter World has already had a pretty good start in Japan; the game managed to sell 250,000 copies at launch on PS4, and that's without taking digital sales into account. World is both the most popular game in the Monster Hunter franchise and one of Capcom's best-selling games of all time (Capcom breaks down their sales weirdly in some cases). Monster Hunter World: Iceborne looks like it's going to continue the multiplayer action RPG's unchallenged reign of dominance.
Continuing on from the ending of Monster Hunter World, Iceborne is a massive expansion for the base game. It takes place in an entirely new location called the Hoarfrost Reach. There's a whole new story campaign to enjoy that follows on directly from World's conclusion. Capcom has also introduced a number of new elements to Monster Hunter World's gameplay in Iceborne. These include new monsters and returning fan favorites, a new Master Rank difficulty level, and a new mechanic called the Clutch Claw. You can check out a trailer for Monster Hunter World: Iceborne below:
Monster Hunter World: Iceborne is available to buy right now on PlayStation 4 and Xbox One. You will need a copy of the original Monster Hunter World if you want to play this one. Capcom recommends that if you haven't played or don't own Monster Hunter World, you should opt for the Iceborne Master Edition, which bundles in the original game with the new expansion. If you're holding out for the PC release of Iceborne, you'll need to wait until January 2020.