[luch]

Microsoft is not the developer here, it has been outsourced to a game studio : https://www.asobostudio.com/games/microsoft-flight-simulator

But the remark still stand, and I hope OP has been correctly credited for it.

[s-macke]

Thanks, I have mentioned this fact at the bottom.

[lupire]

Strange that Microsoft's contractor used OP's project in their game, but didn't bother to let him know.

[dcow]

Do you contact the authors of every one of your dependencies before using them in your works?

[pc86]

Why is that strange?