I was surprised to suddenly see this game become paid after initially releasing for free. The devs deserve to be paid, but my main issue is the lack of transparency. I remember from the last game released, there were some comments that were surprised that the final release was not free when their previous releases were. An announcement beforehand would have solved this.
Since this happened again, I wanted to comment and sincerely ask the devs to be mindful and better communicate changes like this to their players.