Is it still alive ... yes but it's on hold. I haven't touched hammer in months. Don't worry, this is normal. Once or twice a year i lose interest in anything related to mapping, and after 2 to 5 months it starts coming back. I'll probably begin again just before summer, though that's just a guess based on the last 6 years. Having said that ... if you're looking for something to do, you can offcourse do some entity stuff if you want. But it's not like there won't be any time to do so later on. I can put the source file online from when i started, just tell me if you already want to work on it.