This is a very promising idea.
At first, I had a little trouble understanding where I could and couldn't build structures. I understand that you didn't have time to create a tutorial.
I also found the cursor movement a bit slow; in my opinion, it would be better if the player could hold down the button to move the cursor continuously, rather than having to press it once for each tile.
It's a game with great potential and an original concept using the theme of bad luck. Good job!