a big Engine could make very very big airships go higher
First aid room (a smaller room for small ships
Repair kit (a cabinet for small ships
Hatch (to connect to other ship nearby with hatch to board or leave ship
(wooden hatches are very vulnerable to invaders
Corridor (without ladder for long corrdiors)
Fire suppression system - makes ship more faster fighting fire with this
rooms with supply ran out should show the room is turned off eg the engines would just stop running
Doors - the fire doors could sealed if fire in nearby room rather spreading through ship very fast (delaying up 10 minutes)
once ship is grounded - the enemy shouldn't shoot if ship is away from tower or ship meaing Enemy will lose sight of player's ship unless its very near
that's allows crew to find more supplies and repair Armour before trying again
expand size of shipyards
(tiny - builds very small ships)
(small - Builds small ships)
(Big - Builds big ship)
(Very Big - builds very big ships)
Repair yard - repairs the ships and rebuild the missing modules
air dock - parks your ship at it (does not do major repairs/rebuilds - just resupply the supplies and repairs minor damage - eg small room damaged
Sorry for the necro.
I agree that there should be 2 corridor sprites. 1 without a ladder and 1 with. But there should only be one corridor module. The ladderless sprite could display automatically whenever there isn't an entrance going up or down.
And maybe there should be a 3rd sprite with a ladder that doesn't go all the way to the ceiling. For corridors that connect downward, but not up.
I think having separate corridor sprites would make the layout aspect of the game look less confusing.