Something I've been wondering ever since I found out that landships were gong to be introduced is the possibility of naval vessels.
Now, obviously this would be a bit ambitious, since it would mean figuring out how to get the game to tell if a city was close enough to the ocean (or any other sufficiently large body of water) to produce sea ships, as well as figuring out mechanics for sinking them or keeping them afloat. And of course they'd be limited to attacking coastal cities or intercepting enemies traveling over the sea.
On the other hand, naval ships are no less cool than airships and landships, and they have pretty great potential as steampunk weapons, despite the fact that they existed in real life. Additionally, they could be used to transport landships across bodies of water that they'd normally be stumped by (or, at least, provide an explanation for how that's done, even if in game you never have to load the one onto the other. Though that has also given me the idea that landships could move naval vessels overland in the same manner that seaships carry them over the ocean.)
I even thought of a couple of modules that could be used with them. Paddle wheels, screws, and sails to move them through the water, as wells as oars that could have either sailors or a steam engine rowing them (It's a little silly of course, but steam powered oars are hardly the MOST ridiculous contraption to be used in a steampunk setting). Then there could also be torpedo tubes and ballast tanks for submarines, bulkhead doors and bilge pumps to prevent flooding, and periscopes that would basically act as a crows nest that worked under water, as well as air tanks and scrubbers to extend the oxygen supply of a submerged crew.
There could even be engines that operated on compressed steam, or even electricity (a bit of a stretch for a steampunk setting I admit, but the Nautilus had electric engines, and who could doubt that Nemo's famous submarine was steampunk?) so that submerged vehicles could work under water. Including electric engines also opens up new resource modules, such as batteries and generators.
I dunno, I just think it would be a really fun addition to an already fantastic game. But of course, I could understand if this idea gets rejected. Like I said at the beginning, it IS pretty ambitious.
I've something I've been thinking about as well. My current take on it is that it would be really fun, but that it would exceed the bounds of my planned features. Instead, I may implement it as a post-release expansion. :)
I don't think naval combat is really necessary, because you could just ground your airshps in water, and they'd float. (Well, at least I imagine they would, whenever those features get added.)
Maybe there could be Arships that are capable of submerging underwater instead.
Well, I suppose that's fair. I just think it could be really fun, even if it has to be an expansion rather than art of the base game.
And Slimy, the same could be said of landships. They could just be replaced with low flying airships. But adding them is DEFINITELY a good idea.
After modding support is made, this discussion will be continued, I'm sure.