I love the idea, but when I purchase the first upgrade, no other upgrades become available, ever. I got up to a hundred gnomes with only the "move things easier" upgrade. Am I doing something wrong?
Well I have your attention, alt tabbing the game while the upgrade screen is open really messes with it? It seems like by holding both alt and tab while holding an upgrade i can like, click and drag to navigate the screen-- but then i can't click and drag to navigate it otherwise? Ultimately makes me unable to buy upgrades toward the top of the screen, too.