it's not dead, the game is still being worked on; keep in mind that the game is a solo dev project so updates are going to be very slow
currently there's a preview of the next update available on patreon if you want to check it out, though it's still in an unfinished state
as for why you don't hear much from the dev nowadays, it's just that information about the game (in terms of upcoming content / previews / announcements about the game) is mainly kept to patreon, so expect news from the game here in a few more months for an upcoming release date (since it's around the time that updates get released)