Pro tip for people struggling with the download stopping at a certain point! If the download ends with the .zip file not being as large as it should, and extracting it doesn't work properly and the game doesn't play, try the following:
1. Clear your browser cache
2. Restart PC
3. Try download again
Before I did this, Windows 10's built in extractor thought the zip file was empty and playing the game was impossible. After doing those steps, I was able to finish the entire download and windows was able to actually extract the files. Godspeed!