Unique players would mean you'd have to have an account on xbox live. I'd imagine it would be close to a million sold. 800k or so.
Good numbers considering its been out for only 2 weeks or so.

You also didn't believe RL X1 was in the making but here we are. 

Is there something wrong with the source?

Plus it didn't release as a GWG game.

Rocket league 2 is going to be huge. They'll probably sell it for $29 and make absolute bank!

Nice to see. I really wonder how this game will compare to Minecraft a few years from now... also an NX port would be nice :v

Because nothing makes sense anymore. Why would people buy the objectivelyworst version by far of the game? No cross play, no stable framerate. A million is too much.

Because they don't have a PS4 and gaming PC? Or because they wanna play with friends who only have a XB1?

See, the bolded part already makes no sense.

this certainly doesnt mean 1 million sales. you can have people play with 4 different accounts on a single platform, due to its 4 player split screen. and split screen online seems rather popular with this game.

regardless, this means the XB1 version is a success, and thats amazing news.