Can confirm, no "license.sig" in the location you mentioned. Never used Google Docs before so I HOPE this link is working: https://drive.google.com/file/d/1FwZPS0IjrLcaYAALqm5YMtrc2Z_KTtYm/view?usp=sharing
Exactly as title says. So far I've tried the following: - Renaming PC just to make sure there's no foreign characters, thinking this might be a problem. - Installed the game on two separate drives. - Ran the game as admin from both drives. - Tried to activate with a Stardock account but then I remembered I had signed in and purchased this by logging in via Steam. At first I assumed I was just trying to activate it too early!