I fell through the floor as well, unfortunately.
Viewing post in The Grind jam comments
We're sorry to hear this, and from so many people. Although we will be figuring out what went wrong, that isn't an excuse for letting our players down. If you like, please email us at [gamespeppermint@gmail.com] with the subject line [Jam Apology], and we'll create a key for you to download Ratio for free, to make up for our mistake. We hope that the brief working snippet was enough to intrigue you, and that, should you take us up on this offer, you find Ratio as useful as it was intended (or, at the very least, you can see it's potential for where it will end up)