i big steampunk airship
i dont think one exists already

Given the amount of random ♥♥♥♥ you guys have suggested, I can't blame him for A) not being sure what to make, or B) not wanting to make any of it. Also, did you consider that perhaps he is working on something, and has not released it because he's not done with it? Maybe it's even that he's taking his time to make something high-quality, gosh!

Or he started something and then lost interest for a while. He is as susceptible to lethargy attacks as the rest of us.

Coalition dreadanaught, Coalition AA turret, Coalition Dropship, Any other Coalition vechiles that come to mind. Just make a basic sprite for stuff.
I thinking about poking around into making sprites. ( actualy it goes more into facedesking upon failure after failure)

I like how half the suggestions apparently ignore the "No spriting" part of the terms.

I'd suggest making a missile launcher, with a missile that navigates terrain to get to it's target.