Post your designs here!

As of right now there is no way to get a concave exterior shape, just variations of cones and cylinders.

I prefer small, specialist ships myself. A single lucky hit that fries the engine bells of one ship won't mission-kill my entire force.

I favor purpose-built ships. Multi-role is possible but you suffer in delta V and acceleration.

Right now my current multi-role warship is a medium-small cone with 5km/s and a good mix of lasers and kinetics opposite the ventral radiators. Its primary purpose is to shoot down drones and kill wounded capital ships. It is only multi-role in that I have it carry laser resistant nuclear missiles which are used to nullify drones, missiles and harass capital ships.

If you ever need more missiles or drones, just create a cheap little ship with 2km/s delta V or less, no armor worth mentioning and the drone/missile launchers you need.

Hmmm, neat.

String Witch, that's actually how I design my ship.

I have a well armor basis, and then just put things in everytime I build new weapons and stuff.

For categorization, I have made up a naming system already.

The naming system goes like this.

Type, Weapon, Number.

Like for example, Broken Quiver Mark 4.

Broken stands for that it's a very standard cylinder ship type.
Quiver means that it's a carrier that carry conventional gun based drones.
And obviously, mark 4 means that it's the 4th version of the design.

For Type, I have the following readied.

Broken-Standard Cylinder type
Alien-Saucer shaped type
Calamity-Saucer Drone type
Dwarf-Cylinder Drone type
Royal-Golden plated cylinder type, excessively expensive but it's covered in gold with really expensive armor layer to protect it. Most definitely used exclusively for parade.
Eclipse-Broadside type

For Weapon, I have:-
Quiver-Conventional gun drone carrier
Sheath-Eletromagnetic gun drone carrier
Pouch-Missile drone carrier
Holster-Laser drone carrier
Sabre-Light weight gunboat
Katana-Fast light weight gunboat
Sword-Ultralight weight gunboat scout
Lantern-Laser ship
Bow-Small missile carrier
Crossbow-Large missile carrier
Ballista-Megaton missile carrier
Shortbow-Micro missile Carrier

And finally, Carriage-Multi Purpose warship that tends to be a lot heavier than the rest.

Which is also why I asked this question because a single Broken Carriage can do the job of 7 ships while weighing and costing a lot less, which since my ship already cost dirt cheap, it means quite a bit. On the other hand, it's also a lot more vulnerable because it's a single ship.

I also have a few theoretical ship class like.
Hammer-Heavy weight gunboat with high calibre guns.
Spear-Light weight gunboat with only a few frontal mounted superguns.
Shield-Heavily armored gunboat for upclose and personal action.
Ragnarok-Stupidly humongous multi-purpose warship that cost a goddamn planet.

And many more, all of which I put on hold because of me favoring new missiles and drones system.

It's an interesting question. My initial concept was that each fleet would be led by one general-purpose 'aviation cruiser' (armoured missile and drone carrier), augmented with small numbers specialised ships: 'attack ships' (1KT railgun brawlers/missile boats) and 'guard ships' (2KT fleet defence frigates with lasers and CIWS). This worked well with my overall combat plan, which is to degrade the enemy fleet with missiles and drones and then send in the brawlers to finish the job.

Two things have caused me to change my mind. Firstly, given the cost and mass of adding reactors and radiators sufficient to power a laser, it's very tempting to then add a few railguns or what-have-you to make use of that investment. So, my 'guard ship' ended up becoming a multi-purpose destroyer. Secondly, I've discovered that the roles of 'interceptor/strike fighter' (drone) and 'attack ship' (small cap ship) can be accomplished more efficiently by a large (~50 tonne or more) drone, mostly due to small size and acceleration making it a much smaller target. The drone itself follows the same logic as the destroyer, packing a small laser plus several railguns and short-range missile launchers to make a very formidable little ship.

So, I've reached similar conclusions to String Witch (love the look of those ships, BTW). The real question now is whether to put the big fleet-defence lasers on the cruiser, keep the destroyer/frigate, or give up entirely and rely on drones and missiles to intercept enemy drones before they get close.

I generally favor specialized ships as well. As a result, most of my ships end up directly named after either their role or their primary weapon. Though in some cases this results in some rather long names. *looks at the 108mm Cannon Drone Light Carrier*

Oh, sorry! I'll be sure to continue the conversation on your topic later.