I have problems installing the game.
When you enter the game world, you have to look towards the mountain and see if there are any trees. If you don't see any trees, you have to install:
Visual C++ Redistributable 2017 (at the very bottom of the page)
Try to reopen the game and if you still don't see any trees, install:
Note: The game launcher will automatically do this for you, when you first install the game.