Since the TBL tread is being recognized, it's only fair we include the Alien thread as well.
https://pinside.com/pinball/forum/topic/alien-pinball-official-game-thread
It's got over 25,000 posts and runs for over 500 pages. It's the complete saga from early announcement, to delays, changes to the design, EL lighting (or not), last minute artwork changes, more delays, Andrew taking the $ and running, Pinball Brothers. About 250 machines eventually made it out, and the few lucky owners had to figure out how to keep the games running.