I can work on this on my cruise at night.

Glad this isn't dead. I love the Flash version

I made an app that lets you view a 44x666 4 level grayscale smooth-scrolling map.  Now for gameplay.

I made an app that lets you view a 44x666 4 level grayscale smooth-scrolling map.  Now for gameplay.

So, 22x1332?  If you were really awesome, you would make it go 42x1337x666, but I guess this doesn't support 3D. ;-)

That definitely makes it a lot smaller

Okay, I'm back from the cruise with some pretty cool stuff.
I've added more tiles to map generation, including an impenetrable stone.  In addition to the 4 level grayscale smooth scrolling map, I've now added the player's craft, and the physics behind it.  I've also added the basic digging mechanics.  So now, you have all the following:
-A 44x666 smooth scrolling 4 level grayscale map
-A craft, and physics behind it (16 units per pixel)
-Basic digging
-Player tracking via camera movement

I also had a propeller animation for when you fly upwards, but I temporarily disabled it because of problems with redrawing the map.

This game runs in 15 MHz right now, but when I last tried it in 6 MHz, it looked playable.

I've also spent quite a bit of time on the grayscale quality, and I'm pretty satisfied with it.  I use DispGraph^rr three times in a row to cycle the grayscale a bit before continuing the main loop.

I'll get screenshots later, and maybe a demo, but I'm still on the ship, sitting in port

I put it in 6MHz for grayscale, although I'd appreciate if Quigibo would fix grayscale for 15MHz mode.

I'd appreciate if someone could sprite the building on the surface for me.
Thanks!