This is old news from Xenko game engine team:
Long time no see!
The Xenko promotion period has ended, and we’ve made some changes to the license plans.
As of 1 April 2018, Xenko Pro and Xenko Pro Plus are no longer available.
Xenko Personal is still free for personal use and for businesses of less than $200,000 US in annual revenue. If you don’t meet the Xenko Personal criteria, contact us for a custom plan.
If your business makes over $200,000 US in annual revenue, and you downloaded Xenko before 1 April 2018, you can continue to use Xenko until 1 April 2019. If you want to use Xenko after that, you need to contact us to create a custom plan before 1 April 2019.
