itch.io

From what I understood, no it isn't dead
But everything is getting remade, along with basically (at least) doubling the amount of content, which understandably takes a shit ton of time for a single dev

The previous post was stated to be the last one before the update, so while it was quite a while ago, I don't think it would have been given up on after so long

Dev worked hard on this and if it really was dead I'm assuming they would have at least released what they currently have. So this is one of those "No news is good news" situation, it means things are moving forward without any major issues that would require them to keep in touch with us. Let's stay patient I believe it'll be here sooner rather than later