When I was looking at developing my own game, I hit escape to bring up the pause menu (?) In any case, on the right-hand side is a box that says “Looking for help? Check out our creation tutorials…”
Click on this brings up a dialog that indicates tutorials were/are accessible from: https://tutorial.crayta.com for tips and tricks.
However this website does not exist, it appears the correct address should be:
tutorials.crayta.com (extra S at the end of tutorial)