The Xbox One games that were showcased at E3 2013 this week didn't run on early versions of the console or at least on developer kits.
A couple of photos have popped up showing that the games were running on PCs that were powered by Windows 7 and used Nvidia graphics cards.
Inside the cabinets wasn't an Xbox One, not even an early version or a developer edition, but actually a large gaming PC.
This is rather shocking, considering the actual Xbox One uses AMD hardware for both the GPU and CPU and Windows 8 as the basis of its operating system.
Microsoft hasn't commented on the photos and neither have developers.