Hi all,
I'm making games with lisp, and have been lurking here for a while and thought I should probably say hello.
I'm one of the authors of fluxus, a scheme (racket lang) based 3D game engine for rapid prototyping and livecoding: http://www.pawfal.org/fluxus/
I've used it to create a lot of stuff, this is probably one of the more complex projects I've done: http://www.pawfal.org/dave/index.cgi?Projects/Plant%20Eyes
Last year I worked on a facebook game called "Naked on Pluto" (a critical art-game about social networking) where we wrote all the server code in scheme: http://naked-on-pluto.net/
And more recently I've been working with clojure for another online game, a critical take on FarmVille involving permaculture - a bit of info on that here: http://www.pawfal.org/dave/blog/
My background is in the games industry, and I now enjoy the benefits of functional programming and lisp macros for games dev while fondly remembering all the headaches that statefulness caused when working with thousands of C++ classes.
cheers,
dave