Same problem. I download, I extract, I open the file, but the application file isn't there. There's nothing to open.
OK, here's what I did. I downloaded parts 1 and 2 and they came up as .rar files. Then I extracted both of them using BreeZip. Then the folders appeared. Then I put the part 2 folder INTO the part 1 folder, opened the part 1 folder and extracted again. And the application file did show up! Hooray! But then I clicked on that application file, like I would for any other game, and nothing is happening. It doesn't execute... So what's the problem here? I'm not having this problem with any other game.
You can get the game at my Patreon too https://www.patreon.com/c/mandystarrx