I just tested it and it's working for me, did you go to the itch.io page?
It's pretty important that people read through the itch page before playing (in order to understand the mechanics) so I opted to not use itch.io's built in download links. Instead, I put the links as download buttons at the bottom of the page.
If they aren't appearing for you you can download the same file here: https://www.dropbox.com/s/lopjnn1xicc34lk/GOOM.zip?dl=1
@Everyone else, I highly recommend reading through the itch.io page first as it explains the game mechanics and not immediately downloading from the above link.