Sony isn't the only one that had a fantastic next-gen console launch. Microsoft has just announced that it, too, sold through one million Xbox One game systems in less than 24 hours. It's not a direct comparison, however: Microsoft launched in 13 countries, while the PlayStation 4 racked up one million in only US and Canada. Either way, Microsoft says it's the company's fastest selling console ever, surpassing Xbox 360 day-one sales, and that the console is now out of stock at most retailers. "We are working hard to create more Xbox One consoles and look forward to fulfilling holiday gift wishes this season," wrote Xbox marketing boss Yusef Mehdi, in a press release.

However, Polygon has reported that some retailers allocated additional shipments of consoles to fulfill holiday demand, with Best Buy in particular stating that both Xbox One and PlayStation 4 should stay in stock through December.

60 million zombies were harmed in the making of this launch

In addition to sales, Microsoft says gamers have spent quite a bit of time using their new game consoles already, racking up 60 million zombies killed in Dead Rising 3, 3.6 million miles driven in Forza Motorsport 5, 8.5 million enemies defeated in Ryse: Son of Rome, and 7.1 million combos in fighting game Killer Instinct.

It's worth noting that some of these numbers aren't as impressive as they might seem: one Verge editor has personally carved through nearly 10,000 zombies over the course of a few days, so it would take only six thousand such players to rack up 60 million.