This is not the first time microsoft has published third party similar to Sony's games

[Rafie]

pokoko said:

Rafie said:

Aren't those games 2nd party? Just curious...

Sunset Overdrive, Ryse, Quantum Break, ReCore, and Scalebound are all made by third-party developers, which some people call "second-party", thought there technically is no such thing.

Sea of Thieves is Lionhead?  Oh, wait, that's the Rare game, which means it's completely first-party.  Project Spark I believe is made by an internal Microsoft team. 

Oh okay. Thanks for the explanation.