Finished!!
Well, that was interesting 
My first Ludum Dare but surely not my last. It’s been more fun, more rewarding and a lot tougher than I expected. I have awesome amounts of respect for anyone else who completed their entry, particularly if they got everything in it that they intended.
I’ve also ended up making a completely different game from what I had in mind on completely different tech. I had been planning to use jMonkeyEngine with Blender for 3D but none of the 3D game ideas I had really fitted the theme.
Unfortunately, the game has no sound
I simply ran out of time. If I had worked ridiculous hours, I might have got sound in, but I might not have finished the gameplay or got all the bugs out of it.
