it's not dead, I don't entirely know why, but for some reason they don't really post updates or respond to comments here often or at all anymore, for like... months... but if you look on there subscribestar they posted something in October and I guess they are allot more active on their discord where they post the updates they used to post here on there.
Viewing post in Corrupted Kingdoms (NSFW 18+) comments
It's probably fear over the Collective Shout nonsense that happened in the middle of summer as to why Arcadean doesn't post on here anymore. Yeah, the Discord works as well as that one pirate site called F94 or something from what I've heard, I've just heard mixed reception on SubscribeStar and them having their own censorship nonsense.