it won't let me download the game
You have to click on "Download now", not on the individual downloads listed below. A dialog box will open, asking you for an optional donation, you can just skip it if you don't want to donate and then you have to pick the download that works for your environment: Windows, Linux, Mac or Android. I checked right now and it works.
This is really cool because yesterday I brought the game to an exhibition in Milan and a composer volunteered to write a soundtrack. I told him: «OK, let's make a version 1.2 with audio and another translation, Spanish maybe». Then another guy from Brazil volunteered for a Portuguese translation and I thought version 1.2 was about to be made with 4 languages and audio, but with your proposal version 1.2 will have 5 languages and audio! Send me an email please, I'm looking forward to do it.