We have choosen to stop using the Unity game engine and switch to Godot.
We expect this change to add 2-3 months to our development timeline.
Here is a post explaining our decision:   Why we are switching game engines
Due to uncertainty concerning the Unity game engine we are re-evaluating our release date.
We will share more about how the situation affects us soon.
For more information here is a relevant article:   The Death of Unity - by Brandon Sheffield