Hi Mark, definitely this game is under development. I work on it every single day, Almost everything has been improved/modified since this alpha with all the feedback that I have taken from all of you. Unfortunately I don't have a new playable version yet, but eventually I will have. I keep doing streams from time to time showing the progress and I have a channel in my discord connected to the git repository where people can see all the commits to the project.
Thank you for your interest in the project and I hope this outdated alpha gives you a rough idea on what this game will be.