I put an announcement on the page for Nonagon Infinity quite a while before removing the page that I was no longer working on the project and that it wouldn't be continued. Verbatim: "Development on this project has ended and it will not receive any updates in the future." This was posted at the top of the game's page for several months before deletion. Not only that, but its status on itch was also changed to "Canceled" at the same time. All of this information was displayed right on the game's page.
I even replied to your post on Bonkers yesterday telling you the same thing, and then deleted your post shortly after because it wasn't relevant to Bonkers. I made an error in assuming that you'd still get my reply even after deleting your post, so I'll admit that was my mistake.
Regardless, if you have a question regarding a game, you should just message me on Twitter or Discord rather than the comment section of a completely unrelated project or post like you're doing right now -- you could've just checked the game's page for answers prior to deletion, also. And no, there was no cease and desist. I stopped working on the project by my own volition.