Oh hey, I posted this on /r/lisp just earlier today. I discovered it because of a Google rabbit hole triggered by a rediscovery of this article[0] on Naughty Dog's GOAL (Game-Oriented Assembly Lisp). It looks really interesting, although I can't imagine doing serious programming in it (as much as I'd love to).

[0]: http://www.codersnotes.com/notes/disassembling-jak/