Hey, sorry about that. I started investigating why that would be, and it sounds like the dev might have revoked a bunch of keys that were legitimately sold. I think the only way for me to guarantee you get a working copy is to add you as a friend on Steam. I don't know what country you're in, but hopefully your currency is similar enough to mine (USD). Otherwise Steam won't allow me to send it. So for now, please accept my friend request on Steam.