It's a monthly upload if you're talking about novel chapters. Could die anytime soon though depending on author.
Theres a reason the author calls himself a Snail, oh its 1 chap a month now? Glad to know. Last time I read it was 2 months per chapter. So I dropped reading it. Might be a good time to catch up.
I really enjoyed TDG back in the day. I just hope it finishes... eventually. The author seems tired of writing it though.