Comment by frabcus

Not sure, but I remember clearly this Simon Wardley (of Wardley mapping) blogpost from 2016, which thinks Amazon's Lumberyard will kill Unity and Unreal (amongst others) by doing their normal Amazon play for game development.

https://blog.gardeviance.org/2016/02/what-to-do-about-amazon...

That didn't happen - these predictions and strategies don't always work.