My last thread with details is available here (now closed, http://blenderartists.org/forum/showthread.php?300113), so I’m firing this one up to keep things going. I have continued working on the game and I now have a demo available for everyone to try. Windows, Mac and Linux builds are available.
The brightness of the game in play is something that’s been brought to my attention, so I’ll be fixing that in the next demo that is released. Thanks for checking it out!