Hi all,
I had to unpublish my worldbuilding tutorial here on ArtStation as I was getting flooded with obvious bots purchasing it. No idea why, possibly because of the minimum price point and some nefarious purpose. I contacted ArtStation about this, but haven't received a response yet.
Either way, I'm keeping the whole thing up on YouTube anyway here: https://www.youtube.com/channel/UCRIarHJ90SY2x65Rn6Gtyqw
I honestly don't know if you'll still be able to access it if you've already purchased it, sorry for the inconvenience! Hopefully ArtStation will get back to me on this soon :)